Phoenix AC Installation & Repair When it comes to honest HVAC installation and repair, Phoenix homeowners and contractors need look no further than Cooper Climate Control. We offer expert advice based on decades of experience as one of the most trusted AC repair companies in the Valley. Not only do we have an A+ rating with the BBB and are active members of the Electric League of Arizona, but we are NATE and BPI certified as well. In addition, we are also APS- and SRP-qualified contractors. Our comprehensive HVAC services ensure that every aspect of your home’s heating and cooling system works at full capacity whether your unit is tested against triple-digit summer temperatures or unusually chilly winter nights.