<SUBMISSION>
<ACCESSION-NUMBER>0001209191-04-027466
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20040520
<FILING-DATE>20040524
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>FIRST RESERVE GP IX  L P
<CIK>0001233496
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-13831
<FILM-NUMBER>04826848
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>ONE LAFAYETTE PLACE
<CITY>GREENWICH
<STATE>CT
<ZIP>06830
</BUSINESS-ADDRESS>
</REPORTING-OWNER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>FIRST RESERVE FUND IX L P
<CIK>0001233497
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-13831
<FILM-NUMBER>04826849
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>ONE LAFAYETTE PLACE
<CITY>GREENWICH
<STATE>CT
<ZIP>06830
</BUSINESS-ADDRESS>
</REPORTING-OWNER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>SIKORSKI THOMAS
<CIK>0001202000
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-13831
<FILM-NUMBER>04826852
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>ONE LAFAYETTE PLACE
<STREET2>THIRD FLOOR
<CITY>GREENWICH
<STATE>CT
<ZIP>06830
<PHONE>203-661-6601
</BUSINESS-ADDRESS>
</REPORTING-OWNER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>GUILL BEN A
<CIK>0001201989
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-13831
<FILM-NUMBER>04826850
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>600 TRAVIS
<STREET2>SUITE 6000
<CITY>HOUSTON
<STATE>TX
<ZIP>77002
<PHONE>713-227-7890
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>600 TRAVIS
<STREET2>SUITE 6000
<CITY>HOUSTON
<STATE>TX
<ZIP>77002
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>QUANTA SERVICES INC
<CIK>0001050915
<ASSIGNED-SIC>1731
<IRS-NUMBER>742851603
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>1360 POST OAK BLVD
<STREET2>SUITE 2100
<CITY>HOUSTON
<STATE>TX
<ZIP>77056
<PHONE>7133506000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>1360 POST OAK BLVD SUITE 2100
<CITY>HOUSTON
<STATE>TX
<ZIP>77056
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>FIRST RESERVE GP IX INC
<CIK>0001168363
<STATE-OF-INCORPORATION>DE
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-13831
<FILM-NUMBER>04826851
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>ONE LAFAYETTE PLACE
<STREET2>THIRD FLOOR
<CITY>GREENWICH
<STATE>CT
<ZIP>06830
<PHONE>203-661-6601
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>ONE LAFAYETTE PLACE
<STREET2>THIRD FLOOR
<CITY>GREENWICH
<STATE>CT
<ZIP>06830
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-05-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001050915</issuerCik>
        <issuerName>QUANTA SERVICES INC</issuerName>
        <issuerTradingSymbol>PWR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001168363</rptOwnerCik>
            <rptOwnerName>FIRST RESERVE GP IX INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE LAFAYETTE PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>THIRD FLOOR</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001201989</rptOwnerCik>
            <rptOwnerName>GUILL BEN A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE LAFAYETTE PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>THIRD FLOOR</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001202000</rptOwnerCik>
            <rptOwnerName>SIKORSKI THOMAS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE LAFAYETTE PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>THIRD FLOOR</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001233496</rptOwnerCik>
            <rptOwnerName>FIRST RESERVE GP IX  L P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE LAFAYETTE PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>THIRD FLOOR</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001233497</rptOwnerCik>
            <rptOwnerName>FIRST RESERVE FUND IX L P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE LAFAYETTE PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>THIRD FLOOR</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2004-05-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>11742.0000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>39023114.0000</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See FN</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F4"/>
            </securityTitle>
            <transactionDate>
                <value>2004-05-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>11742.0000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>39023114.0000</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See FN</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The common stock reported on this Form 4 was granted to Ben A. Guill under the issuer's 2001 Stock Incentive Plan.</footnote>
        <footnote id="F2">Consists of (i) 38,916,204 shares of Common Stock held by First Reserve Fund IX, L.P., (ii) 45,187 shares of Common Stock held by Ben A. Guill, a director of the Issuer, and (iii) 61,723 shares of Common Stock held by Thomas Sikorski, a director of the Issuer, for an aggregate of 39,023,114 shares of Common Stock.  The Fund Entities (see, FN 3) share beneficial ownership of such Common Stock held by Messrs. Guill and Sikorski.  Messrs. Guill and Sikorski disclaim any beneficial ownership of any securities of the Issuer held by the Fund Entities.</footnote>
        <footnote id="F3">This Form 4 is being filed on behalf of First Reserve GP IX, Inc. (&quot;GP IX, Inc.&quot;), First Reserve GP IX, L.P. (&quot;GP IX&quot;), and First Reserve Fund IX, L.P (&quot;Fund IX&quot;), each as 10% beneficial owners (collectively the &quot;Fund Entities&quot;), and by Ben A. Guill and Thomas J. Sikorski, directors of the issuer.  GP IX, Inc. is the general partner of GP IX, and GP IX is the general partner of Fund IX.  The Fund Entities are entitled to a portion of the profits from any sale of stock held by Messrs. Guill and Sikorski, and therefore share beneficial ownership of such common stock.  Messrs. Guill and Sikorski disclaim any beneficial ownership of any securities of the issuer held by the Fund Entities.</footnote>
        <footnote id="F4">The common stock reported on this Form 4 was granted to Thomas J. Sikorski under the issuer's 2001 Stock Incentive Plan.</footnote>
    </footnotes>

    <remarks>First Reserve GP IX, Inc. is signing for Itself as well as in its capacity as general partner of GP IX.  GP IX is signing in its capacity as general partner of Fund IX.  Thomas R. Denison is signing in his capacity as Attorney-in-Fact for Messrs. Guill and Sikorski</remarks>

    <ownerSignature>
        <signatureName>First Reserve GP IX, Inc. By Thomas R. Denison, Managing Director and Attorney-In-Fact for Ben A. Guill and Thomas J. Sikorski</signatureName>
        <signatureDate>2004-05-24</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By Thomas R. Denison, Attorney-in-Fact (see previously filed Power of Attorney)</signatureName>
        <signatureDate>2004-05-24</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>By Thomas R. Denison, Attorney-in-Fact (see previously filed Power of Attorney)</signatureName>
        <signatureDate>2004-05-24</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Thomas R. Denison</signatureName>
        <signatureDate>2004-03-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Thomas R. Denison</signatureName>
        <signatureDate>2004-03-02</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
