Additional Proxy Soliciting Materials (Form DEFA14A)

Your Vote Counts! *Please check the meeting materials for any special requirements for meeting attendance. Smartphone users Point your camera here and vote without entering a control number For complete information and to vote, visit www.ProxyVote.com Control # V82775-Z91635-P41372 TOPBUILD CORP. 2026 Annual Meeting Vote by April 26, 2026 11:59 PM ET TOPBUILD CORP. 475 NORTH WILLIAMSON BOULEVARD DAYTONA BEACH, FL 32114 You invested in TOPBUILD CORP. and it's time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the shareholder meeting to be held on April 27, 2026. Get informed before you vote View the Notice and Proxy Statement and Annual Report online OR you can receive a free paper or email copy of the material(s) by requesting prior to April 13, 2026. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to [email protected]. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. Vote Virtually at the Meeting* April 27, 2026 10:00 AM EDT Virtually at: www.virtualshareholdermeeting.com/BLD2026

Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click "Delivery Settings". Voting Items Board Recommends V82776-Z91635-P41372 THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Vote at www.ProxyVote.com 1. Election of Directors Nominees: 1a. Alec C. Covington For 1b. Ernesto Bautista, III For 1c. Robert M. Buck For 1d. Joseph S. Cantie For 1e. Tina M. Donikowski For 1f. Deirdre C. Drake For 1g. Mark A. Petrarca For 1h. Nancy M. Taylor For 2. To ratify the Company's appointment of PricewaterhouseCoopers LLP to serve as the Company's independent registered public accounting firm for the Company's fiscal year ending December 31, 2026. For 3. To approve, on an advisory basis, the compensation of the Company's named executive officers. For NOTE: In their discretion, the Proxies are authorized to vote upon such other business as may properly come before the Annual Meeting and any adjournments or postponements thereof. This proxy, when properly executed, will be voted in the manner directed herein by the undersigned shareholder. If no direction is made, this proxy will be voted FOR the election of the nominees for Director named in Proposal 1 in this proxy card and FOR Proposals 2 and 3.