Family owned and operated since 1963, Compare Heating & Air Conditioning services Contra Costa and Alameda counties for solutions to your home or business needs. The company is known for four generations of quality customer service and offers everything from residential heating and cooling services and products, equipment retrofit and replacement, installation and replacement, thermostats and zoning. Each technician is certified and can provide free in-home estimates. This business is a Carrier Factory Authorized Dealer and is certified with NATE, ACCA, EGIA and BBB.