The Bay Area’s Most Trusted HVAC Contractor

We’re committed to providing excellent service to each and every customer. And if we fail to do this, you get your money back. Simple.


Best-in-Class HVAC Services

Since 1983, we’ve been providing the San Francisco Bay Area with heating and cooling services — from one-time installations to regular maintenance, from major repairs to minor tune-ups. And with our Service Protection Plan, you’re guaranteed an appointment in as little as 24 hours, 365 days per year!

Whether you’re ready to install a new A/C unit or are about to replace an older unit with a more energy efficient model, A-1 is ready to do the work to get your property ready for cooler temperatures.

Ready for a new heater? We’ll set it up for you properly. Looking to replace your furnace? We’ll ensure it’s the right size for your home and install it quickly and efficiently.

Suffering from allergies and asthma? Your situation could be vastly improved by improving the air quality indoors using an air purifier or UV lights that scrub the air clean of contaminants.

When your A/C conks out in summer heat, it’s absolutely no fun. Give us a call to remedy the situation and bring back cooler temperatures to your home.

Our Service Areas

100% Satisfaction Guaranteed On All Services

A-1 Heating and Cooling is San Jose’s premier HVAC contractor having the privilege of servicing Northern California since 1983.

Check out what homeowners are saying about A-1


Worked quickly and efficiently

“Brad and his team were quick to respond with providing an estimate, scheduling, and questions we had about the placement (and safety) of the unit. On installation day, a team of three guys worked quickly and efficiently, and they cleaned up after themselves. I highly recommend A-1 for any heating and cooling needs.”

– Lydia H., San Jose, CA

Very professional and punctual

“Brad and his team were very professional and punctual. If there is ever an issue, the team comes out immediately to fix it. Would definitely recommend them to anyone who is looking for heating/cooling services.”

– Jessica F., Los Gatos, CA

Respectful of COVID precautions

“We looked into getting several bids, and finally decided to proceed with A-1 Heating and Cooling through the Lowe’s program because their prices are competitive, awesome customer service and most importantly they were respectful of COVID precautions.”

– G. N., Fremont, CA

Had someone out the same week

“My grandmother’s AC unit was not working properly, kept overheating and popping her breaker. Gave A-1 a call and they had someone out within the same week. The two gentlemen that performed the service were super cool and polite.”

– Alex P., Cupertino, CA

Certified and Trusted Throughout the Industry

Why Customers Choose A-1 Heating and Cooling

Our customers tell us they appreciate the upfront, transparent pricing we have. No surprises, no mysterious fees charged on top of the actual service. We have flat prices for each service, and can go over it in detail so you understand what you’re paying for.

HVAC emergencies always seem to happen at inconvenient times. But we don’t charge extra for emergency services that happen after office hours. Plus, our Service Protection Plan members have peace of mind knowing they can count on getting repairs within the day, 365 days a year.

Our no-contact service appointments promote your health and safety whenever possible. We use email and phone to get the details and location of your HVAC system, and then initiate a call with you once we’re outside your property so we can begin.

Quality work and your complete satisfaction are our goals. Join our membership program and let us be on your team whenever needed.

Service Area

Serving the San Francisco Bay Area and Sacramento Area