At Guido’s Service, we bring more than 30 years of proven experience providing professional HVAC solutions for both residential and commercial clients throughout Contra Costa and Alameda counties. Built on honesty, craftsmanship, and a customer-first approach, our company has earned a reputation for dependable service, fair pricing, and results that stand the test of time.

We handle every aspect of heating, ventilation, and air conditioning—from complete system installations to seasonal maintenance and urgent repairs. Whether you’re planning a system replacement, scheduling a tune-up, or dealing with a sudden breakdown, our skilled technicians deliver efficient, high-quality work you can trust.

As a locally owned and operated business, we understand the unique climate conditions of the Bay Area. That insight allows us to tailor solutions to your property’s specific needs, ensuring maximum efficiency, safety, and reliability. We take the time to explain your options clearly, answer your questions, and provide guidance designed to give you lasting peace of mind.

At Guido’s Service, your comfort always comes first. We’re committed to clear communication, responsive support, and workmanship that makes a real difference. Choosing us means more than hiring an HVAC contractor—you’re partnering with a local team that genuinely cares about your comfort, your property, and your future.

Breathe easier with us—season after season.