Areas We Serve

Connolly Heating & Air Conditioning is proud to serve areas within Contra Costa County. We value our Northern California communities by offering exceptional heating, air conditioning, and air quality services to residential and commercial customers.

Whether you are looking to purchase a new Carrier® air conditioner or you need furnace repair services, we’ve got the team and the skills to solve any problem. For nearly 26 years, our family-owned and -operated business offers honest, professional, and fast services when providing HVAC assistance.

We serve the following Greater Bay Area communities:

What We Offer

Whether you are in need of a new HVAC installation or repair services, our NATE-certified technicians are just a call away. We provide a wide variety of services and products in homes and businesses, including:

Local Diamond Certified Company

A Diamond Certified company is one of the Greater Bay Area’s most prestigious titles. Connolly Heating and Air Conditioning is a local, diamond-certified company, rated highest in quality and helpful expertise. Our dedication to customer satisfaction and quality control makes us a company that you can trust and depend on. Turn to us when you have any HVAC concerns!

Contact Us Today

Our team is proud to serve Martinez, CA and the surrounding areas with premier HVAC services. If you are looking for reliable and high quality HVAC assistance in Northern California, turn to Connolly Heating and Air Conditioning. Call our team at (925) 288-1408 to schedule an appointment or submit an online request to get started immediately. We look forward to serving you!