CERT.OF ELIMINATION OF DESIGNATION OF SERIES D

Published on November 14, 2002

EXHIBIT 3.13



CERTIFICATE OF DESIGNATIONS

of

SERIES D JUNIOR PARTICIPATING PREFERRED STOCK

of

QUANTA SERVICES, INC.

(Pursuant to Section 151 of the
Delaware General Corporation Law)


----------


Quanta Services, Inc., a corporation organized and existing
under the General Corporation Law of the State of Delaware (hereinafter called
the "Corporation"), hereby certifies that the following resolution was adopted
by the Board of Directors of the Corporation as required by Section 151 of the
General Corporation Law at a meeting duly called and held on October 15, 2002:

RESOLVED, that pursuant to the authority granted to and vested
in the Board of Directors of this Corporation (hereinafter called the "Board of
Directors" or the "Board") in accordance with the provisions of the Amended and
Restated Certificate of Incorporation, as amended, the Board of Directors hereby
creates a series of Preferred Stock, par value $0.00001 per share, of the
Corporation (the "Preferred Stock"), and hereby states the number of shares, and
fixes the relative rights, preferences, and limitations thereof as follows:

Series D Junior Participating Preferred Stock:

Section 1. Designation and Amount. The shares of such series
shall be designated as "Series D Junior Participating Preferred Stock" (the
"Series D Preferred Stock") and the number of shares constituting the Series D
Preferred Stock shall be 1,000,000. Such number of shares may be increased or
decreased by resolution of the Board of Directors; provided, that no decrease
shall reduce the number of shares of Series D Preferred Stock to a number less
than the number of shares then outstanding plus the number of shares reserved
for issuance upon the exercise of outstanding options, rights or warrants or
upon the conversion of any outstanding securities issued by the Corporation
convertible into Series D Preferred Stock.

Section 2. Dividends and Distributions.

(A) Subject to the rights of the holders of any shares of any
series of Preferred Stock (or any similar stock) ranking prior and
superior to the Series D Preferred Stock with respect to dividends, the
holders of shares of Series D Preferred Stock, in preference




to the holders of Common Stock, par value $0.00001 per share (the
"Common Stock"), of the Corporation, and of any other junior stock,
shall be entitled to receive, when, as and if declared by the Board of
Directors out of funds legally available for the purpose, quarterly
dividends payable in cash on the first day of March, June, September
and December in each year (each such date being referred to herein as a
"Quarterly Dividend Payment Date"), commencing on the first Quarterly
Dividend Payment Date after the first issuance of a share or fraction
of a share of Series D Preferred Stock, in an amount per share (rounded
to the nearest cent) equal to the greater of (a) $10 or (b) subject to
the provision for adjustment hereinafter set forth, 1000 times the
aggregate per share amount of all cash dividends, and 1000 times the
aggregate per share amount (payable in kind) of all non-cash dividends
or other distributions, other than a dividend payable in shares of
Common Stock or a subdivision of the outstanding shares of Common Stock
(by reclassification or otherwise), declared on the Common Stock since
the immediately preceding Quarterly Dividend Payment Date or, with
respect to the first Quarterly Dividend Payment Date, since the first
issuance of any share or fraction of a share of Series D Preferred
Stock. In the event the Corporation shall at any time declare or pay
any dividend on the Common Stock payable in shares of Common Stock, or
effect a subdivision or combination or consolidation of the outstanding
shares of Common Stock (by reclassification or otherwise than by
payment of a dividend in shares of Common Stock) into a greater or
lesser number of shares of Common Stock, then in each such case the
amount to which holders of shares of Series D Preferred Stock were
entitled immediately prior to such event under clause (b) of the
preceding sentence shall be adjusted by multiplying such amount by a
fraction, the numerator of which is the number of shares of Common
Stock outstanding immediately after such event and the denominator of
which is the number of shares of Common Stock that were outstanding
immediately prior to such event.

(B) The Corporation shall declare a dividend or distribution
on the Series D Preferred Stock as provided in paragraph (A) of this
Section immediately after it declares a dividend or distribution on the
Common Stock (other than a dividend payable in shares of Common Stock);
provided that, in the event no dividend or distribution shall have been
declared on the Common Stock during the period between any Quarterly
Dividend Payment Date and the next subsequent Quarterly Dividend
Payment Date, a dividend of $10 per share on the Series D Preferred
Stock shall nevertheless be payable on such subsequent Quarterly
Dividend Payment Date.

(C) Dividends shall begin to accrue and be cumulative on
outstanding shares of Series D Preferred Stock from the Quarterly
Dividend Payment Date next preceding the date of issue of such shares,
unless the date of issue of such shares is prior to the record date for
the first Quarterly Dividend Payment Date, in which case dividends on
such shares shall begin to accrue from the date of issue of such
shares, or unless the date of issue is a Quarterly Dividend Payment
Date or is a date after the record date for the determination of
holders of shares of Series D Preferred Stock entitled to receive a
quarterly dividend and before such Quarterly Dividend Payment Date, in
either of which events such dividends shall begin to accrue and be
cumulative from such Quarterly Dividend Payment Date. Accrued but
unpaid dividends shall not bear interest. Dividends paid on the shares
of Series D Preferred Stock in an amount less than the total



2

amount of such dividends at the time accrued and payable on such shares
shall be allocated pro rata on a share-by-share basis among all such
shares at the time outstanding. The Board of Directors may fix a record
date for the determination of holders of shares of Series D Preferred
Stock entitled to receive payment of a dividend or distribution
declared thereon, which record date shall be not more than 60 days
prior to the date fixed for the payment thereof.

Section 3. Voting Rights. The holders of shares of Series D
Preferred Stock shall have the following voting rights:

(A) Subject to the provision for adjustment hereinafter set
forth, each share of Series D Preferred Stock shall entitle the holder
thereof to 1000 votes on all matters submitted to a vote of the
stockholders of the Corporation. In the event the Corporation shall at
any time declare or pay any dividend on the Common Stock payable in
shares of Common Stock, or effect a subdivision or combination or
consolidation of the outstanding shares of Common Stock (by
reclassification or otherwise than by payment of a dividend in shares
of Common Stock) into a greater or lesser number of shares of Common
Stock, then in each such case the number of votes per share to which
holders of shares of Series D Preferred Stock were entitled immediately
prior to such event shall be adjusted by multiplying such number by a
fraction, the numerator of which is the number of shares of Common
Stock outstanding immediately after such event and the denominator of
which is the number of shares of Common Stock that were outstanding
immediately prior to such event.

(B) Except as otherwise provided herein, in any other
Certificate of Designations creating a series of Preferred Stock or any
similar stock, or by law, the holders of shares of Series D Preferred
Stock and the holders of shares of Common Stock and any other capital
stock of the Corporation having general voting rights shall vote
together as one class on all matters submitted to a vote of
stockholders of the Corporation.

(C) Except as set forth herein, or as otherwise provided by
law, holders of Series D Preferred Stock shall have no special voting
rights and their consent shall not be required (except to the extent
they are entitled to vote with holders of Common Stock as set forth
herein) for taking any corporate action.

Section 4. Certain Restrictions.

(A) Whenever quarterly dividends or other dividends or
distributions payable on the Series D Preferred Stock as provided in
Section 2 are in arrears, thereafter and until all accrued and unpaid
dividends and distributions, whether or not declared, on shares of
Series D Preferred Stock outstanding shall have been paid in full, the
Corporation shall not:

(i) declare or pay dividends, or make any other
distributions, on any shares of stock ranking junior (either
as to dividends or upon liquidation, dissolution or winding
up) to the Series D Preferred Stock;



3
(ii) declare or pay dividends, or make any other
distributions, on any shares of stock ranking on a parity
(either as to dividends or upon liquidation, dissolution or
winding up) with the Series D Preferred Stock, except
dividends paid ratably on the Series D Preferred Stock and all
such parity stock on which dividends are payable or in arrears
in proportion to the total amounts to which the holders of all
such shares are then entitled;

(iii) redeem or purchase or otherwise acquire for
consideration shares of any stock ranking junior (either as to
dividends or upon liquidation, dissolution or winding up) to
the Series D Preferred Stock, provided that the Corporation
may at any time redeem, purchase or otherwise acquire shares
of any such junior stock in exchange for shares of any stock
of the Corporation ranking junior (either as to dividends or
upon dissolution, liquidation or winding up) to the Series D
Preferred Stock; or

(iv) redeem or purchase or otherwise acquire for
consideration any shares of Series D Preferred Stock, or any
shares of stock ranking on a parity with the Series D
Preferred Stock, except in accordance with a purchase offer
made in writing or by publication (as determined by the Board
of Directors) to all holders of such shares upon such terms as
the Board of Directors, after consideration of the respective
annual dividend rates and other relative rights and
preferences of the respective series and classes, shall
determine in good faith will result in fair and equitable
treatment among the respective series or classes.

(B) The Corporation shall not permit any subsidiary of the
Corporation to purchase or otherwise acquire for consideration any
shares of stock of the Corporation unless the Corporation could, under
paragraph (A) of this Section 4, purchase or otherwise acquire such
shares at such time and in such manner.

Section 5. Reacquired Shares. Any shares of Series D Preferred
Stock purchased or otherwise acquired by the Corporation in any manner
whatsoever shall be retired and cancelled promptly after the acquisition
thereof. All such shares shall upon their cancellation become authorized but
unissued shares of Preferred Stock and may be reissued as part of a new series
of Preferred Stock subject to the conditions and restrictions on issuance set
forth herein, in the Certificate of Incorporation, or in any other Certificate
of Designations creating a series of Preferred Stock or any similar stock or as
otherwise required by law.

Section 6. Liquidation, Dissolution or Winding Up. Upon any
liquidation, dissolution or winding up of the Corporation, no distribution shall
be made (1) to the holders of shares of stock ranking junior (either as to
dividends or upon liquidation, dissolution or winding up) to the Series D
Preferred Stock unless, prior thereto, the holders of shares of Series D
Preferred Stock shall have received $1000 per share, plus an amount equal to
accrued and unpaid dividends and distributions thereon, whether or not declared,
to the date of such payment, provided that the holders of shares of Series D
Preferred Stock shall be entitled to receive an aggregate amount per share,
subject to the provision for adjustment hereinafter set forth, equal to 1000
times the aggregate amount to be distributed per share to holders of shares of
Common Stock, or (2) to the holders of shares of stock ranking on a parity
(either as to dividends or upon



4
liquidation, dissolution or winding up) with the Series D Preferred Stock,
except distributions made ratably on the Series D Preferred Stock and all such
parity stock in proportion to the total amounts to which the holders of all such
shares are entitled upon such liquidation, dissolution or winding up. In the
event the Corporation shall at any time declare or pay any dividend on the
Common Stock payable in shares of Common Stock, or effect a subdivision or
combination or consolidation of the outstanding shares of Common Stock (by
reclassification or otherwise than by payment of a dividend in shares of Common
Stock) into a greater or lesser number of shares of Common Stock, then in each
such case the aggregate amount to which holders of shares of Series D Preferred
Stock were entitled immediately prior to such event under the proviso in clause
(1) of the preceding sentence shall be adjusted by multiplying such amount by a
fraction the numerator of which is the number of shares of Common Stock
outstanding immediately after such event and the denominator of which is the
number of shares of Common Stock that were outstanding immediately prior to such
event.

Section 7. Consolidation, Merger, etc. In case the Corporation
shall enter into any consolidation, merger, combination or other transaction in
which the shares of Common Stock are exchanged for or changed into other stock
or securities, cash and/or any other property, then in any such case each share
of Series D Preferred Stock shall at the same time be similarly exchanged or
changed into an amount per share, subject to the provision for adjustment
hereinafter set forth, equal to 1000 times the aggregate amount of stock,
securities, cash and/or any other property (payable in kind), as the case may
be, into which or for which each share of Common Stock is changed or exchanged.
In the event the Corporation shall at any time declare or pay any dividend on
the Common Stock payable in shares of Common Stock, or effect a subdivision or
combination or consolidation of the outstanding shares of Common Stock (by
reclassification or otherwise than by payment of a dividend in shares of Common
Stock) into a greater or lesser number of shares of Common Stock, then in each
such case the amount set forth in the preceding sentence with respect to the
exchange or change of shares of Series D Preferred Stock shall be adjusted by
multiplying such amount by a fraction, the numerator of which is the number of
shares of Common Stock outstanding immediately after such event and the
denominator of which is the number of shares of Common Stock that were
outstanding immediately prior to such event.

Section 8. No Redemption. The shares of Series D Preferred
Stock shall not be redeemable.

Section 9. Rank. The Series D Preferred Stock shall rank, with
respect to the payment of dividends and the distribution of assets, junior to
all series of any other class of the Corporation's Preferred Stock.

Section 10. Amendment. The Certificate of Incorporation of the
Corporation shall not be amended in any manner which would materially alter or
change the powers, preferences or special rights of the Series D Preferred Stock
so as to affect them adversely without the affirmative vote of the holders of at
least two-thirds of the outstanding shares of Series D Preferred Stock, voting
together as a single class.



5
IN WITNESS WHEREOF, this Certificate of Designations is
executed on behalf of the Corporation by its Chairman of the Board and attested
by its Secretary this 24th day of October, 2002.



QUANTA SERVICES, INC.


By: /s/ Dana A. Gordon
------------------------------

Name: Dana A. Gordon

Title: Vice President - General Counsel



6