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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">







<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>As filed with the Securities and Exchange Commission on May&nbsp;12, 2006</B>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 0pt">Registration No.&nbsp;333-
</DIV>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 0pt"><B>REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933</B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>INTEGRATED ELECTRICAL SERVICES, INC.</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
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<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>76-0542208</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or other jurisdiction of
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(I.R.S. Employer</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Identification No.)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
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<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>1800 West Loop South</B></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><B>Suite&nbsp;500</B></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><B>Houston, Texas</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>77027-3233</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(Address of Principal Executive Offices)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(Zip code)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Integrated Electrical Services, Inc.<BR>
2006 Equity Incentive Plan</B><BR>
(Full title of the plan)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Curt L. Warnock<BR>
Senior Vice President, General Counsel and Corporate Secretary<BR>
Integrated Electrical Services, Inc.<BR>
1800 West Loop South, Suite&nbsp;500<BR>
Houston, Texas 77027-3233</B><BR>
(Name and address of agent for service)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>(713)&nbsp;860-1500</B><BR>
(Telephone number, including area code, of agent for service)</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CALCULATION OF REGISTRATION FEE</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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    <TD width="1%"></TD>
    <TD width="54%"></TD>
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    <TD width="2%"></TD>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="3%"></TD>
    <TD width="2%"></TD><!-- VRule -->
    <TD width="2%"></TD>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="3%"></TD>
    <TD width="2%"></TD><!-- VRule -->
    <TD width="2%"></TD>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="3%"></TD>
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    <TD width="2%"></TD>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="3%"></TD>

    <TD width="1%"></TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Proposed</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Proposed</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center">Title of securities</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Amount to be</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Maximum offering</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">maximum aggregate</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">Amount of</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center">to be registered</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">registered (1)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">price per share (2)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">offering price (2)</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">registration fee</TD>
    <TD width="1%">&nbsp;</TD>
</TR>

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<TR valign="bottom">
    <TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 1px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock, $0.01 par
value per share</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD nowrap colspan="3" align="center" style="border-top: 1px solid #000000">2,002,542 shares</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 1px solid #000000">$</TD>
    <TD align="right" style="border-top: 1px solid #000000">23.93</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 1px solid #000000">$</TD>
    <TD align="right" style="border-top: 1px solid #000000">47,920,830</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 1px solid #000000">&nbsp;</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 1px solid #000000">$</TD>
    <TD align="right" style="border-top: 1px solid #000000">5,127.53</TD>
    <TD style="border-top: 1px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>



<DIV style="margin-top: 3pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Pursuant to Rule&nbsp;416 under the Securities Act of 1933, as amended (the &#147;Securities Act&#148;),
there are also being registered such additional shares of Common Stock as may become issuable
pursuant to the anti-dilution provisions of the Integrated Electrical Services, Inc. 2006
Equity Incentive Plan.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated solely for the purpose of computing the registration fee in accordance with Rule
457(h) under the Securities Act. The price for the 2,002,542 shares issuable under the
Integrated Electrical Services, Inc. 2006 Equity Incentive Plan was based on a price of $1.40,
the last sale reported over-the-counter on May&nbsp;10, 2006, as adjusted for the estimated
exchange ratio pursuant to the Second Amended Plan of Reorganization of 17.0927, or $23.93.</TD>
</TR>

</TABLE>
</DIV>


<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">








<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
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</TR>
<TR><TD colspan="9"><A HREF="#000">PART I</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;3. Incorporation of Documents by Reference</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;4. Description of Securities</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;5. Interests of Named Experts and Counsel</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;6. Indemnification of Directors and Officers</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;7. Exemption from Registration Claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;9. Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#010">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="h36181exv4w1.htm">Second Amended and Restated Certificate of Incorporation</A></TD></TR>
<TR><TD colspan="9"><A HREF="h36181exv4w2.htm">Bylaws</A></TD></TR>
<TR><TD colspan="9"><A HREF="h36181exv4w3.htm">Specimen common stock certificate</A></TD></TR>
<TR><TD colspan="9"><A HREF="h36181exv4w4.htm">2006 Equity Incentive Plan</A></TD></TR>
<TR><TD colspan="9"><A HREF="h36181exv5w1.htm">Opinion of Vinson & Elkins LLP</A></TD></TR>
<TR><TD colspan="9"><A HREF="h36181exv23w1.htm">Consent of Ernst & Young LLP</A></TD></TR>
</TABLE>
</CENTER>
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>




<!-- link1 "PART I" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART I</B>
</DIV>

<DIV align="center" style="font-size: 10pt"><B>INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</B></DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The documents containing the information specified in Part&nbsp;I of Form S-8 will be sent or given
to participants as specified by Rule&nbsp;428(b)(1) promulgated under the Securities Act.
</DIV>
<!-- link1 "PART II" -->
<DIV align="left"><A NAME="001"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II</B>
</DIV>

<DIV align="center" style="font-size: 10pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B></DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This Registration Statement is being filed to register the offer and sale of shares of Common
Stock that may be issued under the Integrated Electrical Services, Inc. 2006 Equity Incentive Plan.
</DIV>
<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference" -->
<DIV align="left"><A NAME="002"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents filed by the Registrant with the Securities and Exchange Commission
are incorporated by reference in this Registration Statement:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s Annual Report on Form 10-K, as amended, for the fiscal year
ended September&nbsp;30, 2005.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s Quarterly Report on Form 10-Q for the fiscal quarter ended
March&nbsp;31, 2006, filed on May&nbsp;10, 2006, and the
Form&nbsp;10-Q/A, filed on May&nbsp;11, 2006.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(c)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s Current Reports on Form 8-K filed on
October 5, 2005, November 15, 2005, November 22, 2005, December 9,
2005, December 19, 2005, December 22, 2005, December 29, 2005, January&nbsp;6, 2006, January&nbsp;20, 2006, January&nbsp;23, 2006,
January&nbsp;25, 2006, January&nbsp;27, 2006, January&nbsp;30, 2006,
February&nbsp;7, 2006, February&nbsp;15, 2006, February&nbsp;21,
2006, April 3, 2006 (and the Form 8-K/A filed on April 3, 2006),
April 17, 2006, April 21, 2006, April 24, 2006 (and the Form 8-K/A
filed on April 24, 2006) and May 1, 2006; provided, however, the
Company does not incorporate by reference any information furnished
under Item 2.02 or Item 7.01 or any exhibits submitted in connection
therewith and included in any of these Current Reports on Form 8-K.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(d)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The description of the Registrant&#146;s Common Stock contained in the Registration
Statement on Form&nbsp;8-A (No.&nbsp;1-13783), dated January&nbsp;14, 1998, including any subsequent
amendment(s) or report(s) filed for the purpose of updating such description.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents subsequently filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14 and
15(d) of the Exchange Act prior to the filing of a post-effective amendment that indicates that all
securities offered have been sold or that deregisters all securities then remaining unsold shall
also be deemed to be incorporated by reference herein and to be a part hereof from the dates of
filing of such documents. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained herein or in any other subsequently
filed document which also is or is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any statement so modified or superseded shall not be deemed, except as
so modified or superseded, to constitute a part of this Registration Statement. Upon the written
or oral request of any person to whom a copy of this Registration Statement has been delivered, the
Registrant will provide without charge to such person a copy of any and all documents (excluding
exhibits thereto unless such exhibits are specifically incorporated by reference into such
documents) that have been incorporated by reference into this Registration Statement but not
delivered herewith. Requests for such documents should be directed to Integrated Electrical
Services, Inc., 1800 West Loop South, Suite&nbsp;500, Houston, Texas 77027-3233, Attention: General
Counsel, telephone (713)&nbsp;860-1500.
</DIV>
<!-- link2 "Item&nbsp;4. Description of Securities" -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of Securities.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel" -->
<DIV align="left"><A NAME="004"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers" -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification of Directors and Officers.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company&#146;s second amended and restated certificate of incorporation and bylaws, as amended,
each provide that the Company shall indemnify each director, officer, employee, or agent of the
Company against all liabilities and expenses reasonably incurred in connection with any action,
suit or proceeding to which he may be made a party by reason of his being or having been a
director, officer, employee, or agent of the Company, to the full extent permitted by Delaware
General Corporation Law. Pursuant to Section&nbsp;145 of the Delaware General Corporation Law, the
Company generally has the power to indemnify its present and former directors and officers
</DIV>

<P align="center" style="font-size: 10pt">2
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">against expenses and liabilities incurred by them in connection with any suit to which they are, or
are threatened to be made, a party by reason of their serving in those positions so long as they
acted in good faith and in a manner they reasonably believed to be in, or not opposed to, the best
interests of the Company, and with respect to any criminal section, so long as they had no
reasonable cause to believe their conduct was unlawful.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;With respect to suits by or in the right of the Company, however, indemnification is generally
limited to attorneys&#146; fees and other expenses and is not available if the person is adjudged to be
liable to the Company, unless the court determines that indemnification is appropriate. The
statute expressly provides that the power to indemnify authorized thereby is not exclusive of any
rights granted under any bylaw, agreement, vote of stockholders or disinterested directors, or
otherwise. The Company also has the power to purchase and maintain insurance for its directors and
officers.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The preceding discussion of the Company&#146;s certificate of incorporation and bylaws and Section
145 of the Delaware General Corporation Law is not intended to be exhaustive and is qualified in
its entirety by the Company&#146;s certificate of incorporation, bylaws and Section&nbsp;145 of the Delaware
General Corporation Law.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company has entered into indemnity agreements with its directors and officers. Pursuant
to such agreements, the Company will, to the extent permitted by applicable law, indemnify such
persons against all expenses, judgments, fines and penalties incurred in connection with the
defense or settlement of any actions brought against them by reason of the fact that they were
directors or officers of the Company or assumed certain responsibilities at the direction of the
Company.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Company has a directors&#146; and officers&#146; insurance policy insuring its directors and
officers against certain liabilities, including liabilities under the Securities Act. In the
opinion of the Commission, such indemnification is contrary to public policy and is therefore
unenforceable.
</DIV>
<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="006"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from Registration Claimed.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
<!-- link2 "Item&nbsp;8. Exhibits" -->
<DIV align="left"><A NAME="007"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unless otherwise indicated below as being incorporated by reference to another filing of the
Registrant with the Commission, each of the following exhibits is filed herewith:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="12%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="86%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Exhibit Number</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Description</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Second Amended and Restated Certificate of Incorporation of Integrated
Electrical Services, Inc.</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Bylaws of Integrated Electrical Services, Inc.</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Specimen common stock certificate</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.4
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Integrated Electrical Services, Inc. 2006 Equity Incentive Plan</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Vinson &#038; Elkins LLP</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Ernst &#038; Young LLP</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Vinson &#038; Elkins LLP (included in the opinion filed as Exhibit&nbsp;5.1 hereto)</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Powers of Attorney (included in the signature pages hereto)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">3
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link2 "Item&nbsp;9. Undertakings" -->
<DIV align="left"><A NAME="008"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. Undertakings.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The undersigned Registrant hereby undertakes:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.&nbsp;To file, during any period in which offers or sales are being made, a post-effective
amendment to this Registration Statement:
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 3%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) To include any prospectus required by Section&nbsp;10(a)(3) of the Securities Act;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 3%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) To reflect in the prospectus any facts or events arising after the effective date
of the Registration Statement (or the most recent post-effective amendment thereof) which,
individually or in the aggregate, represent a fundamental change in the information set
forth in the Registration Statement. Notwithstanding the foregoing, any increase or
decrease in volume of securities offered (if the total dollar value of securities offered
would not exceed that which was registered) and any deviation from the low or high end of
the estimated maximum offering range may be reflected in the form of prospectus filed with
the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price
represent no more than a 20&nbsp;percent change in the maximum aggregate offering price set forth
in the &#147;Calculation of Registration Fee&#148; table in the effective Registration Statement;
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 3%">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) To include any material information with respect to the plan of distribution not
previously disclosed in the Registration Statement or any material change to such
information in the Registration Statement;
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><I>provided, however, </I>that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the Registration
Statement is on Form S-3, Form S-8 or Form F-3 and the information required to be included in a
post-effective amendment by those paragraphs is contained in reports filed with or furnished to the
Commission by the Registrant pursuant to Section&nbsp;13 or Section 15(d) of the Exchange Act that are
incorporated by reference in the Registration Statement.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.&nbsp;That, for the purpose of determining any liability under the Securities Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial <I>bona fide </I>offering thereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.&nbsp;To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The undersigned Registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the Registrant&#146;s annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan&#146;s annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the Registration Statement shall be deemed to be a new Registration
Statement relating to the securities offered therein, and the offering of such securities at that
time shall be deemed to be the initial <I>bona fide </I>offering thereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy as expressed in
the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses incurred or paid by
a director, officer or controlling person of the Registrant in the successful defense of any
action, suit or proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in the opinion of its
counsel the matter has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public policy as expressed
in the Securities Act and will be governed by the final adjudication of such issue.
</DIV>

<P align="center" style="font-size: 10pt">4
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="009"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Houston, State of Texas, on
May 12, 2006.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">INTEGRATED ELECTRICAL SERVICES, INC.<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>

<TD colspan="2" style="border-bottom: 1px solid #000000" align="left">&nbsp;/s/
Curt L. Warnock</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Curt L. Warnock&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Senior Vice President, General Counsel and Corporate
Secretary&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>

</TABLE>

<P align="center" style="font-size: 10pt">5
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>

</TABLE>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, this registration statement has
been signed by the following persons in the capacities and on the date indicated. Each person
whose signature appears below authorizes and appoints each of C. Byron Snyder and Curt L. Warnock,
and each of them severally, acting alone and without the other, as his attorney-in-fact to execute
in the name of such person and to file any amendments to this Registration Statement necessary or
advisable to enable the Registrant to comply with the Securities Act of 1933 and any rules,
regulations and requirements of the registration of the securities which are the subject of this
Registration Statement, which amendments may make such changes in the Registration Statement as
such attorney-in-fact may deem appropriate.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="31%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="12%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Signature</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Capacity</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Date</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
C. Byron Snyder
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chairman of the Board, Chief
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">May 12, 2006</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
C. Byron Snyder
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;Executive
Officer and President
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;<BR>/s/
Ronald P. Badie</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Ronald P. Badie
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;May
12, 2006</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;<BR>/s/
Donald L. Luke</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Donald L. Luke
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;May
12, 2006</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;<BR>/s/
Charles H. Beynon</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Charles H. Beynon
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;May
12, 2006</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
George O. McDaniel
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;May
&#095;&#095;, 2006</TD>
</TR>
<TR valign="bottom">
    <TD align="center"><DIV style="margin-left:0px; text-indent:-0px"></DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/
David A. Miller
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Senior Vice President and Chief</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
David A. Miller
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;Financial
Officer
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;May
12, 2006</TD>
</TR>
<TR valign="bottom">

<TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;<BR>/s/
Gregory H. Upham</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>Gregory H. Upham
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Chief Accounting Officer
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">May 12, 2006</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">6
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link1 "EXHIBIT INDEX" -->
<DIV align="left"><A NAME="010"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">4.1</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Second Amended and Restated Certificate of Incorporation of Integrated
Electrical Services, Inc.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">4.2</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Bylaws of Integrated Electrical Services, Inc.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">4.3</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Specimen common stock certificate</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">4.4</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Integrated Electrical Services, Inc. 2006 Equity Incentive Plan</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">5.1</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Opinion of Vinson &#038; Elkins LLP</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">23.1</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Consent of Ernst &#038; Young LLP</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">23.2</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Consent of Vinson &#038; Elkins LLP (included in the opinion filed as Exhibit&nbsp;5.1 hereto)</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">24.1</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Powers of Attorney (included in the signature pages hereto)</TD>
</TR>

</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">7
</DIV>

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sv8
Table of Contents
As filed with the Securities and Exchange Commission on May 12, 2006
Registration No. 333-
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
INTEGRATED ELECTRICAL SERVICES, INC.
(Exact name of registrant as specified in its charter)
Delaware
76-0542208
(State or other jurisdiction of
(I.R.S. Employer
incorporation or organization)
Identification No.)
1800 West Loop South
Suite 500
Houston, Texas
77027-3233
(Address of Principal Executive Offices)
(Zip code)
Integrated Electrical Services, Inc.
2006 Equity Incentive Plan
(Full title of the plan)
Curt L. Warnock
Senior Vice President, General Counsel and Corporate Secretary
Integrated Electrical Services, Inc.
1800 West Loop South, Suite 500
Houston, Texas 77027-3233
(Name and address of agent for service)
(713) 860-1500
(Telephone number, including area code, of agent for service)
CALCULATION OF REGISTRATION FEE
Proposed
Proposed
Title of securities
Amount to be
Maximum offering
maximum aggregate
Amount of
to be registered
registered (1)
price per share (2)
offering price (2)
registration fee
Common Stock, $0.01 par
value per share
2,002,542 shares
$
23.93
$
47,920,830
$
5,127.53
(1)
Pursuant to Rule 416 under the Securities Act of 1933, as amended (the "Securities Act"),
there are also being registered such additional shares of Common Stock as may become issuable
pursuant to the anti-dilution provisions of the Integrated Electrical Services, Inc. 2006
Equity Incentive Plan.
(2)
Estimated solely for the purpose of computing the registration fee in accordance with Rule
457(h) under the Securities Act. The price for the 2,002,542 shares issuable under the
Integrated Electrical Services, Inc. 2006 Equity Incentive Plan was based on a price of $1.40,
the last sale reported over-the-counter on May 10, 2006, as adjusted for the estimated
exchange ratio pursuant to the Second Amended Plan of Reorganization of 17.0927, or $23.93.
TABLE OF CONTENTS
PART I
PART II
Item 3. Incorporation of Documents by Reference
Item 4. Description of Securities
Item 5. Interests of Named Experts and Counsel
Item 6. Indemnification of Directors and Officers
Item 7. Exemption from Registration Claimed
Item 8. Exhibits
Item 9. Undertakings
SIGNATURES
EXHIBIT INDEX
Second Amended and Restated Certificate of Incorporation
Bylaws
Specimen common stock certificate
2006 Equity Incentive Plan
Opinion of Vinson & Elkins LLP
Consent of Ernst & Young LLP
Table of Contents
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
The documents containing the information specified in Part I of Form S-8 will be sent or given
to participants as specified by Rule 428(b)(1) promulgated under the Securities Act.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
This Registration Statement is being filed to register the offer and sale of shares of Common
Stock that may be issued under the Integrated Electrical Services, Inc. 2006 Equity Incentive Plan.
Item 3. Incorporation of Documents by Reference.
The following documents filed by the Registrant with the Securities and Exchange Commission
are incorporated by reference in this Registration Statement:
(a)
The Registrant's Annual Report on Form 10-K, as amended, for the fiscal year
ended September 30, 2005.
(b)
The Registrant's Quarterly Report on Form 10-Q for the fiscal quarter ended
March 31, 2006, filed on May 10, 2006, and the
Form 10-Q/A, filed on May 11, 2006.
(c)
The Registrant's Current Reports on Form 8-K filed on
October 5, 2005, November 15, 2005, November 22, 2005, December 9,
2005, December 19, 2005, December 22, 2005, December 29, 2005, January 6, 2006, January 20, 2006, January 23, 2006,
January 25, 2006, January 27, 2006, January 30, 2006,
February 7, 2006, February 15, 2006, February 21,
2006, April 3, 2006 (and the Form 8-K/A filed on April 3, 2006),
April 17, 2006, April 21, 2006, April 24, 2006 (and the Form 8-K/A
filed on April 24, 2006) and May 1, 2006; provided, however, the
Company does not incorporate by reference any information furnished
under Item 2.02 or Item 7.01 or any exhibits submitted in connection
therewith and included in any of these Current Reports on Form 8-K.
(d)
The description of the Registrant's Common Stock contained in the Registration
Statement on Form 8-A (No. 1-13783), dated January 14, 1998, including any subsequent
amendment(s) or report(s) filed for the purpose of updating such description.
All documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Exchange Act prior to the filing of a post-effective amendment that indicates that all
securities offered have been sold or that deregisters all securities then remaining unsold shall
also be deemed to be incorporated by reference herein and to be a part hereof from the dates of
filing of such documents. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained herein or in any other subsequently
filed document which also is or is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any statement so modified or superseded shall not be deemed, except as
so modified or superseded, to constitute a part of this Registration Statement. Upon the written
or oral request of any person to whom a copy of this Registration Statement has been delivered, the
Registrant will provide without charge to such person a copy of any and all documents (excluding
exhibits thereto unless such exhibits are specifically incorporated by reference into such
documents) that have been incorporated by reference into this Registration Statement but not
delivered herewith. Requests for such documents should be directed to Integrated Electrical
Services, Inc., 1800 West Loop South, Suite 500, Houston, Texas 77027-3233, Attention: General
Counsel, telephone (713) 860-1500.
Item 4. Description of Securities.
Not applicable.
Item 5. Interests of Named Experts and Counsel.
Not applicable.
Item 6. Indemnification of Directors and Officers.
The Company's second amended and restated certificate of incorporation and bylaws, as amended,
each provide that the Company shall indemnify each director, officer, employee, or agent of the
Company against all liabilities and expenses reasonably incurred in connection with any action,
suit or proceeding to which he may be made a party by reason of his being or having been a
director, officer, employee, or agent of the Company, to the full extent permitted by Delaware
General Corporation Law. Pursuant to Section 145 of the Delaware General Corporation Law, the
Company generally has the power to indemnify its present and former directors and officers
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against expenses and liabilities incurred by them in connection with any suit to which they are, or
are threatened to be made, a party by reason of their serving in those positions so long as they
acted in good faith and in a manner they reasonably believed to be in, or not opposed to, the best
interests of the Company, and with respect to any criminal section, so long as they had no
reasonable cause to believe their conduct was unlawful.
With respect to suits by or in the right of the Company, however, indemnification is generally
limited to attorneys' fees and other expenses and is not available if the person is adjudged to be
liable to the Company, unless the court determines that indemnification is appropriate. The
statute expressly provides that the power to indemnify authorized thereby is not exclusive of any
rights granted under any bylaw, agreement, vote of stockholders or disinterested directors, or
otherwise. The Company also has the power to purchase and maintain insurance for its directors and
officers.
The preceding discussion of the Company's certificate of incorporation and bylaws and Section
145 of the Delaware General Corporation Law is not intended to be exhaustive and is qualified in
its entirety by the Company's certificate of incorporation, bylaws and Section 145 of the Delaware
General Corporation Law.
The Company has entered into indemnity agreements with its directors and officers. Pursuant
to such agreements, the Company will, to the extent permitted by applicable law, indemnify such
persons against all expenses, judgments, fines and penalties incurred in connection with the
defense or settlement of any actions brought against them by reason of the fact that they were
directors or officers of the Company or assumed certain responsibilities at the direction of the
Company.
The Company has a directors' and officers' insurance policy insuring its directors and
officers against certain liabilities, including liabilities under the Securities Act. In the
opinion of the Commission, such indemnification is contrary to public policy and is therefore
unenforceable.
Item 7. Exemption from Registration Claimed.
Not applicable.
Item 8. Exhibits.
Unless otherwise indicated below as being incorporated by reference to another filing of the
Registrant with the Commission, each of the following exhibits is filed herewith:
Exhibit Number
Description
4.1
Second Amended and Restated Certificate of Incorporation of Integrated
Electrical Services, Inc.
4.2
Bylaws of Integrated Electrical Services, Inc.
4.3
Specimen common stock certificate
4.4
Integrated Electrical Services, Inc. 2006 Equity Incentive Plan
5.1
Opinion of Vinson & Elkins LLP
23.1
Consent of Ernst & Young LLP
23.2
Consent of Vinson & Elkins LLP (included in the opinion filed as Exhibit 5.1 hereto)
24.1
Powers of Attorney (included in the signature pages hereto)
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Item 9. Undertakings.
(a) The undersigned Registrant hereby undertakes:
1. To file, during any period in which offers or sales are being made, a post-effective
amendment to this Registration Statement:
(i) To include any prospectus required by Section 10(a)(3) of the Securities Act;
(ii) To reflect in the prospectus any facts or events arising after the effective date
of the Registration Statement (or the most recent post-effective amendment thereof) which,
individually or in the aggregate, represent a fundamental change in the information set
forth in the Registration Statement. Notwithstanding the foregoing, any increase or
decrease in volume of securities offered (if the total dollar value of securities offered
would not exceed that which was registered) and any deviation from the low or high end of
the estimated maximum offering range may be reflected in the form of prospectus filed with
the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price
represent no more than a 20 percent change in the maximum aggregate offering price set forth
in the "Calculation of Registration Fee" table in the effective Registration Statement;
(iii) To include any material information with respect to the plan of distribution not
previously disclosed in the Registration Statement or any material change to such
information in the Registration Statement;
provided, however,
that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the Registration
Statement is on Form S-3, Form S-8 or Form F-3 and the information required to be included in a
post-effective amendment by those paragraphs is contained in reports filed with or furnished to the
Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are
incorporated by reference in the Registration Statement.
2. That, for the purpose of determining any liability under the Securities Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial
bona fide
offering thereof.
3. To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
(b) The undersigned Registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the Registrant's annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the Registration Statement shall be deemed to be a new Registration
Statement relating to the securities offered therein, and the offering of such securities at that
time shall be deemed to be the initial
bona fide
offering thereof.
(c) Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy as expressed in
the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses incurred or paid by
a director, officer or controlling person of the Registrant in the successful defense of any
action, suit or proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in the opinion of its
counsel the matter has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public policy as expressed
in the Securities Act and will be governed by the final adjudication of such issue.
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SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Houston, State of Texas, on
May 12, 2006.
INTEGRATED ELECTRICAL SERVICES, INC.
By:
/s/
Curt L. Warnock
Curt L. Warnock
Senior Vice President, General Counsel and Corporate
Secretary
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Pursuant to the requirements of the Securities Act of 1933, this registration statement has
been signed by the following persons in the capacities and on the date indicated. Each person
whose signature appears below authorizes and appoints each of C. Byron Snyder and Curt L. Warnock,
and each of them severally, acting alone and without the other, as his attorney-in-fact to execute
in the name of such person and to file any amendments to this Registration Statement necessary or
advisable to enable the Registrant to comply with the Securities Act of 1933 and any rules,
regulations and requirements of the registration of the securities which are the subject of this
Registration Statement, which amendments may make such changes in the Registration Statement as
such attorney-in-fact may deem appropriate.
Signature
Capacity
Date
/s/
C. Byron Snyder
Chairman of the Board, Chief
May 12, 2006
C. Byron Snyder
Executive
Officer and President
/s/
Ronald P. Badie
Ronald P. Badie
Director
May
12, 2006
/s/
Donald L. Luke
Donald L. Luke
Director
May
12, 2006
/s/
Charles H. Beynon
Charles H. Beynon
Director
May
12, 2006
George O. McDaniel
Director
May
__, 2006
/s/
David A. Miller
Senior Vice President and Chief
David A. Miller
Financial
Officer
May
12, 2006
/s/
Gregory H. Upham
Gregory H. Upham
Chief Accounting Officer
May 12, 2006
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Table of Contents
EXHIBIT INDEX
4.1
Second Amended and Restated Certificate of Incorporation of Integrated
Electrical Services, Inc.
4.2
Bylaws of Integrated Electrical Services, Inc.
4.3
Specimen common stock certificate
4.4
Integrated Electrical Services, Inc. 2006 Equity Incentive Plan
5.1
Opinion of Vinson & Elkins LLP
23.1
Consent of Ernst & Young LLP
23.2
Consent of Vinson & Elkins LLP (included in the opinion filed as Exhibit 5.1 hereto)
24.1
Powers of Attorney (included in the signature pages hereto)
7