144 0001207002 XXXXXXXX LIVE 0001035983 COMFORT SYSTEMS USA INC 001-13011 9753 KATY FREEWAY SUITE 700 HOUSTON TX 77024 7138309600 MYERS FRANKLIN Director Common Fidelity Brokerage Services LLC

245 Summer Street Boston MA 02110

4500 8727750.00 35202424 05/07/2026 NYSE Common 03/04/2015 Open Market Issuer N 4500 03/04/2015 Compensation N MYERS FRANKLIN

9753 KATY FREEWAY Houston TX 77024

COMFORT SYSTEMS USA INC 02/25/2026 8636 12717032.79 05/07/2026 /s/ Cristina Garcia, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for MYERS FRANKLIN