<?xml version="1.0" encoding="UTF-8"?><ns2:edgarSubmission xmlns:com="http://www.sec.gov/edgar/common" xmlns:ns2="http://www.sec.gov/edgar/ownership">
    <ns2:headerData>
        <ns2:submissionType>144</ns2:submissionType>
        <ns2:filerInfo>
            <ns2:filer>
                <ns2:filerCredentials>
                    <ns2:cik>0001134702</ns2:cik>
                    <ns2:ccc>XXXXXXXX</ns2:ccc>
                </ns2:filerCredentials>
            </ns2:filer>
            <ns2:liveTestFlag>LIVE</ns2:liveTestFlag>



        </ns2:filerInfo>
    </ns2:headerData>
    <ns2:formData>
        <ns2:issuerInfo>
            <ns2:issuerCik>0001050915</ns2:issuerCik>
            <ns2:issuerName>Quanta Services, Inc.</ns2:issuerName>
            <ns2:secFileNumber>001-13831</ns2:secFileNumber>
            <ns2:issuerAddress>
                <com:street1>2727 North Loop West</com:street1>
                <com:city>Houston</com:city>
                <com:stateOrCountry>TX</com:stateOrCountry>
                <com:zipCode>77008</com:zipCode>
            </ns2:issuerAddress>
            <ns2:issuerContactPhone>1-713-629-7600</ns2:issuerContactPhone>
            <ns2:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Derrick Jensen</ns2:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <ns2:relationshipsToIssuer>
                <ns2:relationshipToIssuer>Officer</ns2:relationshipToIssuer>
            </ns2:relationshipsToIssuer>
        </ns2:issuerInfo>
        <ns2:securitiesInformation>
            <ns2:securitiesClassTitle>Common</ns2:securitiesClassTitle>
            <ns2:brokerOrMarketmakerDetails>
                <ns2:name>Goldman Sachs &amp; Co. LLC</ns2:name>
                <ns2:address>
                    <com:street1>200 West Street</com:street1>
                    <com:city>New York</com:city>
                    <com:stateOrCountry>NY</com:stateOrCountry>
                    <com:zipCode>10282</com:zipCode>
                </ns2:address>
            </ns2:brokerOrMarketmakerDetails>
            <ns2:noOfUnitsSold>30000</ns2:noOfUnitsSold>
            <ns2:aggregateMarketValue>8159100</ns2:aggregateMarketValue>
            <ns2:noOfUnitsOutstanding>146388455</ns2:noOfUnitsOutstanding>
            <ns2:approxSaleDate>06/03/2024</ns2:approxSaleDate>
            <ns2:securitiesExchangeName>NYSE</ns2:securitiesExchangeName>
        </ns2:securitiesInformation>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/26/2024</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Compensation -- Restricted Stock Units</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>1779</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/26/2024</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/09/2024</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Compensation -- Restricted Stock Units</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>961</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/09/2024</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/01/2024</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Compensation -- Performance Stock Units</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>14289</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/01/2024</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/04/2024</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Compensation -- Restricted Stock Units</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>1461</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/04/2024</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/03/2021</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Compensation -- Restricted Stock Units</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>11510</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/03/2021</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</ns2:nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <ns2:remarks>The sales of shares set forth herein are made in connection with a selling plan dated 03/01/2024, that is intended to comply with Rule 10b5-1(c).</ns2:remarks>
        <ns2:noticeSignature>
            <ns2:noticeDate>06/03/2024</ns2:noticeDate>
            <ns2:planAdoptionDates>
                <ns2:planAdoptionDate>03/01/2024</ns2:planAdoptionDate>
            </ns2:planAdoptionDates>
            <ns2:signature>Goldman Sachs &amp; Co. LLC on behalf of Derrick Jensen</ns2:signature>
        </ns2:noticeSignature>
    </ns2:formData>
</ns2:edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 6605}]
144
0001134702
XXXXXXXX
LIVE
0001050915
Quanta Services, Inc.
001-13831
2727 North Loop West
Houston
TX
77008
1-713-629-7600
Derrick Jensen
Officer
Common
Goldman Sachs & Co. LLC
200 West Street
New York
NY
10282
30000
8159100
146388455
06/03/2024
NYSE
Common
03/26/2024
Compensation -- Restricted Stock Units
Quanta Services, Inc.
N
1779
03/26/2024
Compensation
Common
03/09/2024
Compensation -- Restricted Stock Units
Quanta Services, Inc.
N
961
03/09/2024
Compensation
Common
03/01/2024
Compensation -- Performance Stock Units
Quanta Services, Inc.
N
14289
03/01/2024
Compensation
Common
03/04/2024
Compensation -- Restricted Stock Units
Quanta Services, Inc.
N
1461
03/04/2024
Compensation
Common
03/03/2021
Compensation -- Restricted Stock Units
Quanta Services, Inc.
N
11510
03/03/2021
Compensation
Y
The sales of shares set forth herein are made in connection with a selling plan dated 03/01/2024, that is intended to comply with Rule 10b5-1(c).
06/03/2024
03/01/2024
Goldman Sachs & Co. LLC on behalf of Derrick Jensen