Your CaliforniaAir Care Specialists
Industry-Leading HVAC Experts
ESTABLISHED IN 1992, Connolly Heating and Air Conditioning is an air care specialist that serves communities in Contra Costa County with superior heating and air conditioning services and products. Our team’s goal is to provide outstanding professionalism, premier solutions, and long-lasting results for residential and commercial customers. At Connolly Heating and Air Conditioning, we strive for 100 percent satisfaction in everything we do. Choose Connolly as your trusted HVAC provider!
Leading our industry in air care comfort
We Have Financing Options Available!
Special Offers
Proudly Serving All of Contra Costa County
We Service All Makes and Brands!
We’re a Carrier Factory Authorized Dealer
Carrier Authorized Dealers work hard for this designation. And all their experience and work is for one purpose—to create comfortable homes and satisfied customers. So when you need a new system, or it’s time to service or repair your current equipment, you can trust you’re working with the best in the business.
The Connolly Blog
Video – Have Your Utility Bills Jumped?
Have your utility bills suddenly jumped? It could be your heating and cooling system.
Video – Why Is My HVAC Unit Making Unusual Noises?
If you hear any unusual noise coming from your HVAC unit, please turn it off and call us. Don’t attempt any kind of repair without consulting an HVAC certified technician first.
Awards and Certifications
Our Maintenance Plans
Peace of mind with year-round protection!