A-1 Guaranteed Heating & Air Inc. (Vallejo, Calif.) now provides full-service energy upgrades including HVAC, windows, doors, air sealing, insulation, and hired Mark Waters to the position of general manager.

Phil MadrenBrady (Greensboro, N.C.) promoted Phil Madren (right) to a full-time HVAC technician. Madren had been working for Brady as a part-time associate while attending classes to earn his associate’s degree in HVAC.

Publication date: 11/7/2011