<SUBMISSION>
<ACCESSION-NUMBER>0001193125-03-009194
<TYPE>S-8
<PUBLIC-DOCUMENT-COUNT>4
<FILING-DATE>20030610
<EFFECTIVENESS-DATE>20030610
<FILER>
<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>
<FILING-VALUES>
<FORM-TYPE>S-8
<ACT>33
<FILE-NUMBER>333-105997
<FILM-NUMBER>03739411
</FILING-VALUES>
<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>
</FILER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>ds8.htm
<DESCRIPTION>FORM S-8 - 1999 EMPLOYEE STOCK PURCHASE PLAN
<TEXT>
<HTML><HEAD>
<TITLE>FORM S-8 - 1999 EMPLOYEE STOCK PURCHASE PLAN</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">As filed with the Securities and Exchange Commission on June <U></U>10, 2003 </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="right"><FONT FACE="Times New Roman" SIZE="2">Registration No. 333-<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U> </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><HR SIZE="3" NOSHADE COLOR="#000000" ALIGN="left"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="4"><B>UNITED STATES
</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="4"><B>SECURITIES AND EXCHANGE COMMISSION </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
FACE="Times New Roman" SIZE="2">Washington, D.C. 20549 </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE WIDTH="58%">
<TR>
<TD WIDTH="41%">&nbsp;</TD>
<TD WIDTH="17%"><HR SIZE="1" NOSHADE COLOR="#000000" ALIGN="left"></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman"
SIZE="5"><B>FORM S-8 </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">REGISTRATION STATEMENT UNDER THE
SECURITIES ACT OF 1933 </FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE WIDTH="58%">
<TR>
<TD WIDTH="41%">&nbsp;</TD>
<TD WIDTH="17%"><HR SIZE="1" NOSHADE COLOR="#000000" ALIGN="left"></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman"
SIZE="5"><B>QUANTA SERVICES, INC. </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1">(Exact name of registrant as specified in charter) </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" ALIGN="center">

<TR>
<TD VALIGN="top" ALIGN="center" WIDTH="48%"><FONT FACE="Times New Roman" SIZE="2"><B>Delaware</B></FONT></TD>
<TD VALIGN="bottom" WIDTH="3%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="top" ALIGN="center" WIDTH="48%"><FONT FACE="Times New Roman" SIZE="2"><B>75-2851603</B></FONT></TD></TR>
<TR>
<TD VALIGN="top" ALIGN="center" WIDTH="48%"><FONT FACE="Times New Roman" SIZE="1">(State or other jurisdiction of Incorporation)</FONT></TD>
<TD VALIGN="bottom" WIDTH="3%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="top" ALIGN="center" WIDTH="48%"><FONT FACE="Times New Roman" SIZE="1">(I.R.S. Employer Identification No.)</FONT></TD></TR>
</TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>1360 Post Oak
Boulevard, Suite 2100 </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Houston, Texas 77056 </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
FACE="Times New Roman" SIZE="1">(Address, including zip code, of Principal Executive Offices) </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
FACE="Times New Roman" SIZE="4"><B>QUANTA SERVICES, INC. 1999 EMPLOYEE STOCK PURCHASE PLAN </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1">(Full title of the Plan) </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE WIDTH="58%">
<TR>
<TD WIDTH="41%">&nbsp;</TD>
<TD WIDTH="17%"><HR SIZE="1" NOSHADE COLOR="#000000" ALIGN="left"></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" ALIGN="center">

<TR>
<TD VALIGN="top" ALIGN="center" WIDTH="48%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Dana A. Gordon, Esq.</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
FACE="Times New Roman" SIZE="2"><B>Vice President, General Counsel &amp; Secretary</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Quanta Services, Inc.</B></FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>1360 Post Oak Boulevard, Suite 2100</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman"
SIZE="2"><B>Houston, Texas 77056</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>(713) 629-7600</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
FACE="Times New Roman" SIZE="1"><B></B>(Name, address, including zip code, and telephone number,<B></B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B></B>including area code, of agent
for service)<B></B></FONT></P></TD>
<TD VALIGN="bottom" WIDTH="3%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="top" ALIGN="center" WIDTH="48%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Copy to: T. Mark Edwards, Esq.</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"
ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Gardere Wynne Sewell LLP</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>1601 Elm Street</B></FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Suite 3000</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>Dallas, Texas
75201</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>(214) 999-4654</B></FONT></P></TD></TR>
</TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE WIDTH="58%">
<TR>
<TD WIDTH="41%">&nbsp;</TD>
<TD WIDTH="17%"><HR SIZE="1" NOSHADE COLOR="#000000" ALIGN="left"></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
FACE="Times New Roman" SIZE="2"><B>CALCULATION OF REGISTRATION FEE </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><HR SIZE="3" NOSHADE COLOR="#000000" ALIGN="left">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" ALIGN="center">

<TR>
<TD VALIGN="bottom" WIDTH="42%" ALIGN="center"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>Title of securities</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
FACE="Times New Roman" SIZE="1"><B>to be registered</B></FONT></P></TD>
<TD VALIGN="bottom" WIDTH="4%" STYLE="BORDER-LEFT:1px solid #000000"><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER-RIGHT:1px solid #000000"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>Amount to be</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"
ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>registered (1)</B></FONT></P></TD>
<TD VALIGN="bottom" WIDTH="4%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER-RIGHT:1px solid #000000"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>Proposed&nbsp;maximum&nbsp;&nbsp;</B></FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>offering&nbsp;price&nbsp;per&nbsp;&nbsp;</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman"
SIZE="1"><B>share (2)&nbsp;&nbsp;</B></FONT></P></TD>
<TD VALIGN="bottom" WIDTH="4%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER-RIGHT:1px solid #000000"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>Proposed&nbsp;maximum&nbsp;&nbsp;</B></FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>aggregate&nbsp;offering&nbsp;&nbsp;</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman"
SIZE="1"><B>price (2)&nbsp;&nbsp;</B></FONT></P></TD>
<TD VALIGN="bottom" WIDTH="4%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="center"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>Amount of&nbsp;&nbsp;</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
FACE="Times New Roman" SIZE="1"><B>registration&nbsp;fee&nbsp;&nbsp;</B></FONT></P></TD></TR>
<TR>
<TD VALIGN="bottom" COLSPAN="9"><HR SIZE="1" NOSHADE COLOR="#000000"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="42%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Common Stock, $0.00001</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="4%" STYLE="BORDER-LEFT:1px solid #000000"><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="right" WIDTH="16%" STYLE="BORDER-RIGHT:1px solid #000000"><FONT FACE="Times New Roman" SIZE="2">1,000,000&nbsp;shares&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="4%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="center" WIDTH="8%" STYLE="BORDER-RIGHT:1px solid #000000"><FONT FACE="Times New Roman" SIZE="2">$7.90&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="4%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="center" WIDTH="12%" STYLE="BORDER-RIGHT:1px solid #000000"><FONT FACE="Times New Roman" SIZE="2">$7,900,000&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="4%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="center" WIDTH="6%"><FONT FACE="Times New Roman" SIZE="2">$639.11&nbsp;&nbsp;</FONT></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="42%"> <P STYLE="margin-left:3.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">&nbsp;&nbsp;&nbsp;&nbsp;Par value</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="4%" STYLE="BORDER-LEFT:1px solid #000000"><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-RIGHT:1px solid #000000"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="4%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-RIGHT:1px solid #000000"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="4%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" STYLE="BORDER-RIGHT:1px solid #000000"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="4%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom"><FONT SIZE="1">&nbsp;</FONT></TD></TR>
</TABLE><HR SIZE="3" NOSHADE COLOR="#000000" ALIGN="left"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="3%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(1)</FONT></TD>
<TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Pursuant to Rule 416 under the Securities Act of 1933, shares issuable upon any stock split, stock dividend or similar transaction with respect to these shares are also being
registered hereunder. </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="3%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">(2)</FONT></TD>
<TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Calculated pursuant to Rule 457(h), based on the average of the high and low prices for the Common Stock as reported on the New York Stock Exchange Composite Tape for June 4, 2003.
</FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">Shares of Common Stock of the Registrant for
issuance upon purchases of Common Stock under the Plan have been heretofore registered under a Registration Statement on Form S-8 No. 333-86375 of the Registrant. These shares of Common Stock and the Plan are described in the Section 10(a)
prospectus for this registration statement in accordance with Rule 429 of the General Rules and Regulations under the Securities Act of 1933, as amended. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><HR
SIZE="3" NOSHADE COLOR="#000000" ALIGN="left">

<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">
 <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">Section 4.1 of the of the Quanta Services, Inc. 1999 Employee Stock Purchase Plan (the &#147;Plan&#148;)
authorized 1,000,000 shares of Common Stock of the Company to be issued under the Plan, and provides that the number of shares may be cumulatively increased on June 1, 2000 and each June 1 thereafter by an amount equal to the lesser of (a) 1,000,000
shares or (b) a lesser amount of shares determined by the Board. A Registration Statement on Form S-8 (File No. 333-86375) was filed with the Securities and Exchange Commission on September 1, 1999 (the &#147;Initial S-8&#148;) to register 1,000,000
shares of Common Stock of the Company relating to the Plan. Subsequent to the filing of the Initial S-8, the Board approved a 3-for-2 stock split of Common Stock which was paid as a stock dividend to holders of the Common Stock of record at the
close of business on March 27, 2000, which resulted in an additional 500,000 shares of Common Stock of the Company registered under the Initial S-8. A second Registration Statement on Form S-8 (File No. 333-102448) was filed with the Securities and
Exchange Commission on January 10, 2003 (the &#147;Second S-8&#148;; the Initial S-8 and the Second S-8 are collectively referred to as the &#147;Prior S-8&#148;.) to register an additional 1,000,000 shares of Common Stock of the Company that were
authorized pursuant to the terms of the Plan for issuance of Common Stock proceeds under the Plan. As a result of the filing of the Second S-8, 2,500,000 shares of Common Stock of the Company were registered with respect to the Plan. On June 1,
2003, an additional 1,000,000 shares of Common Stock were authorized pursuant to the terms of the Plan for issuance of Common Stock purchases under the Plan. The contents of the Initial S-8 and the Second S-8, including documents incorporated by
reference therein, are incorporated by reference into this Registration Statement. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT
FACE="Times New Roman" SIZE="2"><B>PART II </B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2"><B>Item 8. Exhibits
</B></FONT></P> <P STYLE="margin-top:0px;margin-bottom:-6px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">In addition to the exhibits filed or incorporated by
reference into the Prior S-8, the following documents are filed as Exhibits to this Registration Statement: </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">&nbsp;&nbsp;5.1</FONT></TD>
<TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Opinion of Gardere Wynne Sewell LLP </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">23.1</FONT></TD>
<TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Consent of PricewaterhouseCoopers LLP, independent accountants </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">23.2</FONT></TD>
<TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Notice Regarding Consent of Arthur Andersen LLP </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">23.3</FONT></TD>
<TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Consent of legal counsel (included as part of Exhibit 5.1) </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="5%"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">24.1</FONT></TD>
<TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Power of Attorney (set forth on the signature page of this Registration Statement) </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">II-2 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">SIGNATURES </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">Pursuant to the requirements of the Securities Act of 1933, as amended, 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, and the State of Texas, on June 9, 2003. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><DIV ALIGN="right">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0">

<TR>
<TD VALIGN="top" COLSPAN="3" WIDTH="91%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">QUANTA SERVICES, INC.</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman"
SIZE="2">(Registrant)</FONT></P></TD></TR>
<TR>
<TD HEIGHT="40"></TD>
<TD HEIGHT="40" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="7%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">By:</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="2%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="top" ALIGN="center" WIDTH="91%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">/s/ JOHN R. COLSON</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="2%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="91%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">John R. Colson</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Chief Executive
Officer</FONT></P></TD></TR>
</TABLE></DIV> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">POWER OF ATTORNEY </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2">Each of the undersigned hereby appoints John R. Colson and James H. Haddox and each of them (with full power to act alone), as attorneys and agents for
the undersigned, with full power of substitution, for and in the name, place and stead of the undersigned, to sign and file with the Securities and Exchange Commission under the Securities Act of 1933 any and all amendments and exhibits to this
Registration Statement and any and all applications, instruments and other documents to be filed with the Securities and Exchange Commission pertaining to the registration of the securities covered hereby, with full power and authority to do and
perform any and all acts and things whatsoever requisite or desirable. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; text-indent:4%"><FONT FACE="Times New Roman"
SIZE="2">Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons in the capacities indicated on June 9, 2003. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0">

<TR>
<TD VALIGN="bottom" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Signature</FONT></P><HR WIDTH="60" SIZE="1" NOSHADE ALIGN="left" COLOR="#000000"></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="45%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Title</FONT></P><HR WIDTH="27" SIZE="1" NOSHADE ALIGN="left" COLOR="#000000"></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ JOHN R. COLSON</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">John R. Colson</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Chief Executive Officer and Chairman of the</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px; margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Board of Directors</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px; margin-left:1.00em; text-indent:-1.00em"><FONT
FACE="Times New Roman" SIZE="2">(principal executive officer)</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ JAMES H. HADDOX</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">James H. Haddox</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Chief Financial Officer</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">(principal financial
officer)</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ DERRICK A. JENSEN</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">Derrick A. Jensen</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Vice President, Controller and Chief Accounting</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman"
SIZE="2">Officer (principal accounting officer)</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ VINCENT D. FOSTER</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">Vincent D. Foster</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Director</FONT></P></TD></TR>
</TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">II-3 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">

<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0">

<TR>
<TD VALIGN="bottom" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Signature</FONT></P><HR WIDTH="60" SIZE="1" NOSHADE ALIGN="left" COLOR="#000000"></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="45%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Title</FONT></P><HR WIDTH="27" SIZE="1" NOSHADE ALIGN="left" COLOR="#000000"></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ JAMES R. BALL</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">James R. Ball</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Director</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Louis C.
Golm</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Director</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Ben A. Guill</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Director</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ JAMES A. NATTIER</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">James A. Nattier</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Director</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ THOMAS J. SIKORSKI</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">Thomas J. Sikorski</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Director</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ GARY A. TUCCI</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">Gary A. Tucci</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Director</FONT></P></TD></TR>
<TR>
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="50%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ JOHN R. WILSON</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">John R. Wilson</FONT></P></TD>
<TD VALIGN="bottom" WIDTH="5%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" WIDTH="45%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Director</FONT></P></TD></TR>
</TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">II-4 </FONT></P>


<p Style='page-break-before:always'>
<HR  SIZE="3" COLOR="#999999" WIDTH="100%" ALIGN="CENTER">
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">INDEX TO EXHIBITS </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" ALIGN="center">

<TR>
<TD VALIGN="bottom" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">Exhibit<BR>Number</FONT><BR><HR WIDTH="53" SIZE="1" NOSHADE COLOR="#000000"></TD>
<TD VALIGN="bottom" WIDTH="7%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="90%"> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Exhibit</FONT></P><HR WIDTH="43" SIZE="1" NOSHADE ALIGN="left" COLOR="#000000"></TD></TR>
<TR>
<TD HEIGHT="13"></TD>
<TD HEIGHT="13" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" ALIGN="center" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="2">&nbsp;&nbsp;5.1</FONT></TD>
<TD VALIGN="bottom" WIDTH="7%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="90%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Opinion of Gardere Wynne Sewell LLP</FONT></P></TD></TR>
<TR>
<TD HEIGHT="13"></TD>
<TD HEIGHT="13" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" ALIGN="center" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="2">23.1</FONT></TD>
<TD VALIGN="bottom" WIDTH="7%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="90%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Consent of PricewaterhouseCoopers LLP, independent accountants</FONT></P></TD></TR>
<TR>
<TD HEIGHT="13"></TD>
<TD HEIGHT="13" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" ALIGN="center" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="2">23.2</FONT></TD>
<TD VALIGN="bottom" WIDTH="7%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="90%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Notice Regarding Consent of Arthur Andersen LLP</FONT></P></TD></TR>
<TR>
<TD HEIGHT="13"></TD>
<TD HEIGHT="13" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" ALIGN="center" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="2">23.3</FONT></TD>
<TD VALIGN="bottom" WIDTH="7%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="90%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Consent of legal counsel (included as part of Exhibit 5.1)</FONT></P></TD></TR>
<TR>
<TD HEIGHT="13"></TD>
<TD HEIGHT="13" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" ALIGN="center" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="2">24.1</FONT></TD>
<TD VALIGN="bottom" WIDTH="7%" ><FONT SIZE="1">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="90%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">Power of Attorney (set forth on the signature page of the Registration Statement)</FONT></P></TD></TR>
</TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">II-5 </FONT></P>

</BODY></HTML>

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>dex51.htm
<DESCRIPTION>OPINION OF GARDERE WYNNE SEWELL LLP
<TEXT>
<HTML><HEAD>
<TITLE>OPINION OF GARDERE WYNNE SEWELL LLP</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">EXHIBIT 5.1 </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Direct: 214-999-4654 </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Direct Fax: 214-999-3654 </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">medwards@gardere.com </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">June 10, 2003 </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Quanta Services, Inc. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">1360 Post Oak Boulevard </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Suite 2100 </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Houston, Texas 77056 </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR>
<TD WIDTH="3%" VALIGN="top" ALIGN="left"><FONT FACE="Times New Roman" SIZE="2">Re:</FONT></TD>
<TD WIDTH="1%" VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD ALIGN="left" VALIGN="top"><FONT FACE="Times New Roman" SIZE="2">Quanta Services, Inc. 1999 Employee Stock Purchase Plan </FONT></TD></TR></TABLE> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Ladies and Gentlemen: </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">We have acted as counsel to Quanta Services, Inc., a Delaware corporation (the &#147;Company&#148;), in connection with the registration under the Securities Act of 1933, as amended (the &#147;Securities Act&#148;),
on Form S-8 (the &#147;Registration Statement&#148;) of an additional 1,000,000&nbsp;shares of Common Stock, $0.00001 par value (the &#147;Shares&#148;), of the Company issuable under the Quanta Services, Inc. 1999 Employee Stock Purchase Plan (the
&#147;Plan&#148;). </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">We have assisted the Company in the preparation of, and are
familiar with, the Registration Statement of the Company filed with the Securities and Exchange Commission on June 10, 2003 for the registration under the Securities Act of the Shares covered by the Plan. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">With respect to the foregoing, we have examined and have relied upon originals or copies,
certified or otherwise identified to our satisfaction, of such corporate records, documents, orders, certificates and other instruments as in our judgment are necessary or appropriate to enable us to render the opinion expressed below. </FONT></P>
<P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Based upon the foregoing, we are of the opinion that (i) the Shares are duly authorized;
and (ii) upon the issuance of the Shares against payment therefor of an amount equal to at least the par value of each Share in accordance with the Plan, the Shares will be validly issued, fully paid and non-assessable. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">We hereby consent to the use of this opinion as Exhibit 5.1 to the Registration Statement. In
giving this consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act and the rules and regulations of the Securities and Exchange Commission thereunder. </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">Very truly yours, </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
SIZE="1">&nbsp;</FONT></P>
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<TR>
<TD VALIGN="top" COLSPAN="3" WIDTH="91%"> <P STYLE="margin-left:1.00em; text-indent:-1.00em"><FONT FACE="Times New Roman" SIZE="2">GARDERE WYNNE SEWELL LLP</FONT></P></TD></TR>
<TR>
<TD HEIGHT="27"></TD>
<TD HEIGHT="27" COLSPAN="2"></TD></TR>
<TR>
<TD VALIGN="top" WIDTH="7%"><FONT FACE="Times New Roman" SIZE="2">By:</FONT></TD>
<TD VALIGN="bottom" WIDTH="2%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="center" WIDTH="91%"> <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">/s/ ERIC BLUMROSEN</FONT></P><HR SIZE="1" NOSHADE COLOR="#000000"></TD></TR>
<TR>
<TD VALIGN="top"><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" WIDTH="2%" ><FONT SIZE="1">&nbsp;</FONT></TD>
<TD VALIGN="bottom" ALIGN="center" WIDTH="91%"><FONT FACE="Times New Roman" SIZE="2">Eric Blumrosen, Partner</FONT></TD></TR>
</TABLE>
</BODY></HTML>

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>dex231.htm
<DESCRIPTION>CONSENT OF PRICEWATERHOUSECOOPERS LLP
<TEXT>
<HTML><HEAD>
<TITLE>CONSENT OF PRICEWATERHOUSECOOPERS LLP</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">
 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">EXHIBIT 23.1 </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">CONSENT OF INDEPENDENT ACCOUNTANTS </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated February 27, 2003 (except for the matters discussed in
Note 16, as to which the date is March 10, 2003), relating to the consolidated financial statements of Quanta Services, Inc. and its subsidiaries for the year ended December 31, 2002, which appears in the December 31, 2002 annual report on Form 10-K
of Quanta Services, Inc. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">/s/ PRICEWATERHOUSECOOPERS LLP </FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">PricewaterhouseCoopers LLP </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
FACE="Times New Roman" SIZE="2">Houston, Texas </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">June 4, 2003 </FONT></P>
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<TYPE>EX-23.2
<SEQUENCE>5
<FILENAME>dex232.htm
<DESCRIPTION>NOTICE REGARDING CONSENT OF ARTHUR ANDERSEN LLP
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 <P STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">EXHIBIT 23.2 </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">NOTICE REGARDING CONSENT OF ARTHUR ANDERSEN LLP </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P
STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">On June 28, 2002, the Company dismissed Arthur Andersen LLP (&#147;Arthur Andersen&#148;) as its independent auditor and appointed PricewaterhouseCoopers LLP to replace
Arthur Andersen. After reasonable efforts, the Company has been unable to obtain Arthur Andersen&#146;s written consent to the incorporation by reference in this Registration Statement of Arthur Andersen&#146;s audit reports with respect to the
Company&#146;s financial statements as of December 31, 2001 and December 31, 2000 and for the years then ended. Under these circumstances, Rule 437a of the Securities Act of 1933, as amended (the &#147;Securities Act&#148;), permits the Company to
file this Registration Statement without a written consent from Arthur Andersen. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman"
SIZE="2">Section 11(a) of the Securities Act provides that if any part of a registration statement at the time such part becomes effective contains an untrue statement of a material fact or omits to state a material fact required to be stated
therein or necessary to make the statements therein not misleading, any person acquiring a security pursuant to such registration statement (unless it is proved that at the time of such acquisition such person knew of such untruth or omission) may
sue, among others, every accountant who has consented to be named as having prepared or certified any part of the registration statement, or as having prepared or certified any report or valuation which is used in connection with the registration
statement, with respect to the statement in such registration statement, report, or valuation, which purports to have been prepared or certified by the accountant. </FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT
SIZE="1">&nbsp;</FONT></P> <P STYLE="margin-top:0px;margin-bottom:0px"><FONT FACE="Times New Roman" SIZE="2">As noted above, Arthur Andersen has not consented to the incorporation by reference of any audit report in this Registration Statement. As a
result, Arthur Andersen may not be liable under Section 11(a) of the Securities Act to those persons purchasing shares registered under this Registration Statement. The Company believes, however, that other persons who are liable under Section 11(a)
of the Securities Act, including the Company&#146;s officers and directors, may still rely on Arthur Andersen&#146;s audit reports as being made by an expert under the due diligence defense provision of Section 11(b) of the Securities Act.
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