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                     June 21, 2021

       Derrick Jensen
       Chief Financial Officer
       Quanta Services, Inc.
       2800 Post Oak Boulevard, Suite 2600
       Houston, TX 77056

                                                        Re: Quanta Services,
Inc.
                                                            Form 10-K for the
year ended December 31, 2020
                                                            Filed on March 1,
2021
                                                            File No. 001-13831

       Dear Mr. Jensen:

              We have completed our review of your filing. We remind you that
the company and its
       management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding
       any review, comments, action or absence of action by the staff.




                     Sincerely,


                     Division of Corporation Finance

                     Office of Real Estate & Construction