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                    <ns2:ccc>XXXXXXXX</ns2:ccc>
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            </ns2:filer>
            <ns2:liveTestFlag>LIVE</ns2:liveTestFlag>



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        <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 A Jensen</ns2:nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <ns2:relationshipsToIssuer>
                <ns2:relationshipToIssuer>Officer</ns2:relationshipToIssuer>
            </ns2:relationshipsToIssuer>
        </ns2:issuerInfo>
        <ns2:securitiesInformation>
            <ns2:securitiesClassTitle>Class A 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>100000</ns2:noOfUnitsSold>
            <ns2:aggregateMarketValue>16936000</ns2:aggregateMarketValue>
            <ns2:noOfUnitsOutstanding>145175564</ns2:noOfUnitsOutstanding>
            <ns2:approxSaleDate>05/08/2023</ns2:approxSaleDate>
            <ns2:securitiesExchangeName>NYSE</ns2:securitiesExchangeName>
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            <ns2:securitiesClassTitle>Class A Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/04/2023</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Restricted Stock Awards</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>1461</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/04/2023</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
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        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Class A Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/26/2023</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Restricted Stock Awards</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>1779</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/26/2023</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:securitiesToBeSold>
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            <ns2:acquiredDate>03/26/2023</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Restricted Stock Awards</ns2:natureOfAcquisitionTransaction>
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            <ns2:amountOfSecuritiesAcquired>4619</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/26/2023</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Class A Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/02/2023</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Performance Awards</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>36068</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/02/2023</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Class A Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/26/2022</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Restricted Stock Awards</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>1778</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/26/2022</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Class A Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/26/2022</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Restricted Stock Awards</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>4618</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/26/2022</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Class A Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>03/02/2022</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Performance Awards</ns2:natureOfAcquisitionTransaction>
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            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>37094</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>03/02/2022</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
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        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Class A Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>02/28/2022</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Restricted Stock Awards</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>4109</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>02/28/2022</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
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        <ns2:securitiesToBeSold>
            <ns2:securitiesClassTitle>Class A Common</ns2:securitiesClassTitle>
            <ns2:acquiredDate>01/15/2022</ns2:acquiredDate>
            <ns2:natureOfAcquisitionTransaction>Acquired as compensation -- Restricted Stock Awards</ns2:natureOfAcquisitionTransaction>
            <ns2:nameOfPersonfromWhomAcquired>Quanta Services, Inc.</ns2:nameOfPersonfromWhomAcquired>
            <ns2:isGiftTransaction>N</ns2:isGiftTransaction>
            <ns2:amountOfSecuritiesAcquired>8474</ns2:amountOfSecuritiesAcquired>
            <ns2:paymentDate>01/15/2022</ns2:paymentDate>
            <ns2:natureOfPayment>Compensation</ns2:natureOfPayment>
        </ns2:securitiesToBeSold>
        <ns2:nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</ns2:nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <ns2:noticeSignature>
            <ns2:noticeDate>05/08/2023</ns2:noticeDate>
            <ns2:planAdoptionDates/>
            <ns2:signature>Goldman Sachs &amp; Co. LLC on behalf of Derrick A Jensen</ns2:signature>
        </ns2:noticeSignature>
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[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 9289}]
144
0001134702
XXXXXXXX
LIVE
0001050915
Quanta Services, Inc.
001-13831
2727 North Loop West
Houston
TX
77008
1-713-629-7600
Derrick A Jensen
Officer
Class A Common
Goldman Sachs & Co. LLC
200 West Street
New York
NY
10282
100000
16936000
145175564
05/08/2023
NYSE
Class A Common
03/04/2023
Acquired as compensation -- Restricted Stock Awards
Quanta Services, Inc.
N
1461
03/04/2023
Compensation
Class A Common
03/26/2023
Acquired as compensation -- Restricted Stock Awards
Quanta Services, Inc.
N
1779
03/26/2023
Compensation
Class A Common
03/26/2023
Acquired as compensation -- Restricted Stock Awards
Quanta Services, Inc.
N
4619
03/26/2023
Compensation
Class A Common
03/02/2023
Acquired as compensation -- Performance Awards
Quanta Services, Inc.
N
36068
03/02/2023
Compensation
Class A Common
03/26/2022
Acquired as compensation -- Restricted Stock Awards
Quanta Services, Inc.
N
1778
03/26/2022
Compensation
Class A Common
03/26/2022
Acquired as compensation -- Restricted Stock Awards
Quanta Services, Inc.
N
4618
03/26/2022
Compensation
Class A Common
03/02/2022
Acquired as compensation -- Performance Awards
Quanta Services, Inc.
N
37094
03/02/2022
Compensation
Class A Common
02/28/2022
Acquired as compensation -- Restricted Stock Awards
Quanta Services, Inc.
N
4109
02/28/2022
Compensation
Class A Common
01/15/2022
Acquired as compensation -- Restricted Stock Awards
Quanta Services, Inc.
N
8474
01/15/2022
Compensation
Y
05/08/2023
Goldman Sachs & Co. LLC on behalf of Derrick A Jensen