Welcome to Dennis’ Heating & Air

We are Northern California’s premier installer of Commercial and Residential Air Conditioner’s & Heaters. Our professional team of technicians is available to service any size or type of system.

We provide heating and air conditioning services for large and small retail stores, malls, restaurants, warehouses, apartments, hotels, offices, medical buildings, hospitals and any other commercial buildings. We don’t stop there, Dennis’ Heating and Air works in residential areas too, and will provide your home with comfort, warmth, and cool crisp air. Our team of AC experts will install or retrofit your business or home with the latest in high performance equipment that is reliable and efficient.

We invite you to read some of our many happy & satisfied customers’ testimonials. Call us today to service your unit, install a split-system, or a heating and air conditioning unit for your home or your business. No job is too small or too large. At Dennis’ Heating and Air, your comfort is our priority!

“If it’s not broke, don’t fix it”


Our Customers

Dennis’ Heating and Air takes great pride in treating our customers like family. After all, looking out for each other is what family does.

Our Services

Dennis’ Heating and Air are your “Go to guys” to meet your Heating and Air Conditioning needs. Serving the north state since 1981.

Our Work

Dennis’ Heating and Air does Installation, Service and Metal Fabrication. We’re known for our knowledge, reliability, and incredible customer service!

Our Shop

Dennis’ Heating and Air Conditioning offers a full sheet metal shop. We are capable of fabricating almost anything. If you can draw it, we can build it!