 HOUSTON--BUSINESS WIRE--Comfort Systems USA, Inc. NYSE:FIX, a leading provider of commercial, industrial and institutional heating, ventilation, air conditioning and electrical contracting services, today announced the transition of Trent T. McKenna from his current role as Senior Vice President and Vice President Region 4 to Chief Operating Officer, effective January 1, 2021. Brian Lane, President and CEO of the Company, commented, Im thrilled to congratulate Trent on his new role. Tre 