POWER OF ATTORNEY


       I appoint each of Nicholas R. Thompson, Jr., and Michelle A. Friel,
 signing singly, my attorney-in-fact to:

(1)   prepare, execute in my name and on my behalf, and submit to the U.S.
Securities and Exchange Commission (the "SEC") a Form ID, including amendments
thereto, and any other documents necessary or appropriate to obtain codes and
passwords enabling me to make electronic filings with the SEC of reports
required by Section 16(a) of the Securities Exchange Act of 1934 or any rule
or regulation of the SEC;

(2)   execute for and on my behalf in my capacity as an officer and/or
director of TopBuild Corp., Forms 3, 4, and 5 as required by Section 16(a)
of the Securities Exchange Act of 1934 and the rules thereunder, and any other
forms that I may be required to file in connection with my ownership,
acquisition, or disposition of securities of TopBuild Corp.;

(3)  do and perform any and all acts for and on my behalf which may be
necessary or desirable to complete and execute any such Form 3, 4, or 5, or
other form or report, and timely file such form or report with the SEC and
any stock exchange or similar authority;

(4)  execute and file for and on my behalf in my capacity as an officer and/or
director of TopBuild Corp., Form 144 with the SEC and any stock exchange,
relating to my proposed sale of securities of TopBuild Corp. as required
pursuant to Rule 144 of the Securities Act of 1933; and

(5)  do anything in connection with the foregoing which such attorney-in-fact
may deem legally required by me or in my best interest.

       I grant to each such attorney-in-fact full power and authority to do
and perform any and every act and thing whatsoever requisite, necessary or
proper to be done in the exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as I could do if personally
present, with full power of substitution, hereby ratifying and confirming
all that such attorney-in-fact shall lawfully do or cause to be done by virtue
of this Power of Attorney and the rights and powers herein granted.

       I acknowledge that the foregoing attorneys-in-fact, in serving in such
capacity at my request, are not assuming, nor is TopBuild Corp. assuming, any
of my responsibilities to comply with Section 16 of the Securities Exchange
Act of 1934 and with Rule 144 of the Securities Act of 1933.

       This Power of Attorney supersedes any Power of Attorney executed by me,
which is hereby revoked.  This Power of Attorney shall remain in effect until
I am no longer required to file Forms 3, 4, 5, and 144 with respect to my
holdings of and transactions in securities issued by TopBuild Corp., unless
earlier revoked in writing by me.

       This Power of Attorney is executed on June 8, 2015.


                                      /s/ Robin L. Reininger