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 These California Communities
Walnut Creek, CA • Concord, CA • Martinez, CA
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
How Does an Air Conditioner Work?
As a homeowner here in California, it’s always a good idea to learn as much as you can about your appliances. That means knowing their basic operations, what features are included, and if any necessary upkeep is involved. Needless to say, this is no exception for your air conditioning (AC) unit.
Why Is Indoor Air Quality (IAQ) Important?
Energy-efficient homes are more common than ever. Although they provide many benefits, including reducing overall energy usage and a smaller carbon footprint, they come with some disadvantages as well.
Awards and Certifications
Our Maintenance Plans
Peace of mind with year-round protection!