FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Wood Patrick III
  2. Issuer Name and Ticker or Trading Symbol
QUANTA SERVICES, INC. [PWR]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
2800 POST OAK BLVD., SUITE 2600
3. Date of Earliest Transaction (Month/Day/Year)
03/19/2021
(Street)

HOUSTON, TX 77056-6175
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 01/05/2021   G(1) V 2,038 D $ 0 16,212 D  
Common Stock 01/25/2021   G(1) V 600 D $ 0 15,612 D  
Common Stock 03/19/2021   S(2)   5,000 D $ 85.21 10,612 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Units $ 0 (3)               (4)   (4) Common Stock 10,460.00 (4)   10,460 (4) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Wood Patrick III
2800 POST OAK BLVD., SUITE 2600
HOUSTON, TX 77056-6175
  X      

Signatures

 /s/ Carolyn M. Campbell, Atty-in-Fact   03/23/2021
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The gift reported was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person.
(2) The sale reported was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person.
(3) The restricted stock units are settled in shares of common stock on a one-for-one basis, provided that in certain circumstances the reporting person may elect to settle up to 50% of the restricted stock units in cash.
(4) Includes 4,425 unvested restricted stock units and 6,035 vested restricted stock units for which settlement has been deferred by the reporting person pursuant to the terms of a nonqualified deferred compensation plan maintained by the issuer. Unless otherwise provided in the applicable award agreement, the unvested restricted stock units vest on June 1, 2021 and settlement of all or a portion of such restricted stock units may be deferred by the reporting person.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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