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Furnaces

Blue flames under a furnace.

Enviro Heating & Air Conditioning is the leading HVAC company in Santa Rosa, CA, for your furnace service needs. We service and repair all makes and models. If you need furnace service, we are the company to call. Our skilled technicians are qualified to solve just about any repair or installation that you throw at us.

Furnace Repair

Don’t get left in the cold! Is your furnace acting up, blowing cold air, or making too much noise? Our experienced team of professionals is here to keep your home warm and cozy. We repair all makes and models, and we will never try to sell you a service that you don’t need. Our technicians are honest and hard working, and we’re always transparent and fair about the work we do.

Furnace Replacement

Sometimes a repair is not sufficient to fix your furnace. Sometimes a new furnace is the most cost-effective and energy-efficient way to go. We will always be honest with you about a possible furnace replacement. We value our time and your money—we don’t want to perform repairs or service on an appliance that is in need of replacement.

If you do need a furnace replacement, we know how overwhelming it can be. Here are some of the frequently asked questions about furnaces that we get from some of our Santa Rosa, CA residents:

What Are The Different Types Of Furnaces?

Single Stage: A single-stage furnace has only one stage of operation. It can either be turned on or turned off.

Two Stage: A two-stage furnace has two settings—full and half speed. This is a more efficient way to heat and provides for better comfort, because it can move the air at a slower pace.

Variable Stage or Modulating: A variable-stage or modulating furnace modulates the speed and heat output based on the temperature outside and the desired comfort level. This furnace only works as much as you need it, making this type the most energy-efficient type of furnace.

What Is AFUE?

AFUE, or Annualized Fuel Utilization Efficiency, is a measure of furnace-heating efficiency. The higher the AFUE, the more efficient the furnace.

What Size Furnace Do I Need?

We can calculate the correct size furnace for your home. The number of BTUs, or British Thermal Units, needed to heat your home is dependent on a number of variables. Contrary to what you might think, a bigger furnace may not necessarily mean more heating power for your home. Call us at Enviro Heating & Air Conditioning, and we can set up an appointment to calculate the furnace size you might need.

Need Furnace Service?

Contact the experts at Enviro Heating & Air Conditioning.

Call us at 707-795-7219!

Gas Furnace Replacement in Mill Valley, CA 94941

“Enviro did a great job replacing my 40 year old furnace with a high efficiency modern 2-zone model. They were very honest and told me that the duct work I had in place was fine and did not need to be replaced, unlike some other companies that told me I needed to replace all of it just to increase the scope of work. The price was great and the installers were very friendly. They were also very accommodating when I had an issue with the zone setting on the thermostat and came out to my house promptly to assist me with it. I will definitely use them again!” – Alex L.

Gas Furnace Maintenance in Other, CA 94929

“Shannon arrived on time for the annual maintenance visit on a gas furnace Enviro installed a few years back. I was interested in understanding what type of test he would be performing on the unit and what each test would tell him about the health of the heater. Great learning experience for me and i appreciated his willingness to take me through the whole maintenance process and educate me. In the end, the furnace was performing very well and only required an adjustment to the gas pressure to bring it back to its best/most efficient operational state. Thanks again Shannon- well done.”

– Thomas F.

Gas Furnace Installation in Mill Valley, CA 94941

“Enviro replaced an aging furnace in my home and was there when they said they would be, did a clean install, and left things tidy and clean. Initially the new furnace was much louder than the one replaced, and they returned to adjust the fan speed and line the plenum, and the noise is now very close to the old furnace it replaced. Overall very happy with the install, the price remained the same as initially quoted and we are warm once again. Thanks!”

– Daniel R.

Gas Furnace Maintenance in Rohnert Park, CA 94928

“Both men were courteous, knowledgeable, and very service oriented. Shannon found a problem with my furnace and brainstormed with Alex until they found the solution. Their office even called to tell me Shannon was going to be 15 minutes late. I will be a loyal customer.”

– Judy B.

Gas Furnace Maintenance in Rohnert Park, CA 94928

“Excellent service!!!!”

– Pamela M.

Gas Furnace Repair in Petaluma, CA 94954

“Prompt arrival, knowledgeable, courteous, efficient, I will continue to work with this company.😀”

– Robin J.

Gas Furnace Maintenance in Santa Rosa, CA 95404

“On time, friendly, knowledgeable. Can’t ask for more!”

– Serge Z.

Gas Furnace Repair in Rohnert Park, CA 94928

“Arrived on time, and did the job quickly!”

– Ronald T.

Gas Furnace Maintenance in Other, CA 95497

“Shannon explained every test he did on the furnace. He was very precise with his work to maintain the furnace, and did not rush. Wish the company all the best since Sea Ranchers need a good heating/air company. I was looking for a company for 5 years to no avail.”

– Herman K.

Gas Furnace Maintenance in Petaluma, CA 94952

“Shannon was the BEST- excellent service and went the extra mile to inform me on how to keep my heating system in top shape!”

– Margaret A.


Enviro Heating & Air Conditioning proudly provides HVAC service to Santa Rosa, Petaluma, Rohnert Park, and the surrounding California communities. Visit our service area page for more coverage details, call us at 707-795-7219, or request service online today.