Air Quality Heating and Air Conditioning

Focusing on our customers’ 100% complete satisfaction, at Air Quality, full service heating and air conditioning contractor serving Santa Clara County, San Mateo County and the surrounding areas since 1999. Delivering high quality products and services at competitive prices, and no-pressure sales, our heating and air conditioning technicians and staff work for you, and are interested in providing you with the best solution for your individual heating and cooling needs and expectations.

HVAC repair
24 Hour Heating and Air Conditioning Repairs San Mateo California

Emergency Heating and Air Conditioning Repairs Around The Clock

We offer 24-hour heating and air conditioning repair services from Morgan Hill to San Mateo. With our emergency repair services, our customers can rest-assured that — in the instance of a system breakdown or failure — they can get fast repairs, honest diagnoses, and a return to comfortable temperatures in no time at all. Call us now for immediate heating and air conditioning repairs!

From Morgan Hill to San Mateo

HVAC Zoning

At Air Quality, we are very big proponents of energy conservation and green energy technology, which is why we are proud to offer our HVAC zoning services in the Greater Bay area. By breaking down indoor spaces and rooms into a series of “zones,” you can heat or cool different parts of a home or business independently from one-another, allowing more control of not only the temperature, but control over the energy expenditure as well. Achieve a greater level of indoor comfort with lower energy bills by taking advantage of our HVAC zoning options.

Commercial Heating and Air Conditioning Service, Repair & Installation

We are your South Bay area’s top provider of commercial heating and air conditioning service, repair, maintenance, installation and replacement. We have all of your business’ indoor heating and air conditioning needs covered with our full service commercial HVAC tech services, and are a Carrier Factory Authorized Dealer of commercial grade heating and air conditioning products, systems and parts. For all of your commercial HVAC needs, trust Air Quality Heating and Air Conditioning.

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Custom Ductwork and Sheet Metal Services

A heat pump, air conditioner or furnace may offer a stated energy efficiency ratings out-of-the-box, but any true HVAC contractor will tell you that keeping that efficiency rating true comes down to the efficiency of the ductwork and airways connected to the system. To achieve maximum efficiency in every one of our heating and air conditioning installations, we offer custom ductwork and sheet metal services. Creating airways and energy efficient housings is not only a passion of ours, it will help you get the most out of your energy-dollar and out of your HVAC system.

Indoor Air Quality Testing and Improvement

Keeping the air circulating through your home or business clean and healthy is not just as simple as replacing the air filter often — it takes much more for truly clean and healthy indoor air quality. The air indoors can easily become contaminated by a host of different contaminants including allergens, toxins, air pollution, mold spores, and even viruses. With our indoor air quality testing services, we check the air in your home or business to see what contaminants are behind the poor indoor air quality. We then takes steps to eradicate those contaminants and place indoor air quality products into the system to ensure that the air remains clean in the future as well. Schedule you IAQ test today and see what is lurking in your indoor air.

Carrier Factory Authorized Dealer


Proud to be a Factory Authorized Dealer of Carrier heating and air conditioning systems and products.

Diamond Certified HVAC Contractors

diamond certified

We are proud to be a Bay Area Diamond-Certified HVAC Contractor. Only the Best Pass the Test®

Mitsubishi Authorized Dealer


Choose from our selection of Mitsubishi heating and cooling products for the home and light commercial.

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Quality Everyone Is Talking About:

Our experience with Air Quality was above and beyond. I had trouble with my AC during the hottest time and Matt responded quickly. The service was excellent and I would recommend them to anyone looking for AC/Heating services.

Marilyn G.

Air Quality installed a replacement furnace/air conditioning Carrier brand unit in 2004. The workmanship was outstanding along with excellent customer service. Our annual tune ­ups are done by competent, trustworthy, and courteous people. They are definitely on time and leave the premises as clean or even cleaner when the job is finished. The cost is […]

Ernest L.

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