Contra Costa Heating and Air Conditioning (CCHA) has set the standard for HVAC/R companies serving multi-site clients. Our extensive technical expertise is rooted in our beginnings as a local HVAC/R service company in the San Francisco Bay Area. We specialize in a wide variety of mechanical co...

Are you looking for a mechanical contractor to perform commercial or residential HVAC work? Is it time to upgrade from your old window air conditioning unit to a central heat and air system? Nowak Heating & Air Conditioning, Inc. is ready to take on the task! For 30 years now, we have been providing...