Comfort Systems USA, Inc. (NYSE: FIX), a leading provider of commercial, industrial and institutional heating, ventilation and air conditioning (“HVAC”) services, announces that it has scheduled its quarterly conference call for Thursday, March 1, 2012 at 10 a.m. Central Time to discuss fourth quarter 2011 financial results. The results will be released after the market closes on Wednesday, February 29, 2012. To participate in the call, dial 1-888-713-4216 fifteen minutes before the conference call begins and enter 24340430 as the conference passcode. Participants may pre-register for the call at https://www.theconferencingservice.com/prereg/key.process?key=PVBWDLWC4. Pre-registrants will be issued a pin number to use when dialing into the live call which will provide quick access to the conference by bypassing the operator upon connection. A replay of the entire call will be available until March 8, 2012 by calling 1-888-286-8010 with the conference passcode of 70992960. The call can also be accessed on the Company’s website at http://www.comfortsystemsusa.com under the Investors tab. A replay of the call will also be available on the Company’s website. Comfort Systems USA ® is a premier provider of business solutions addressing workplace comfort, with 86 locations in 72 cities around the nation. For more information, visit the Company’s website at www.comfortsystemsusa.com .