petaluma home comfort
Thomason Mechanical was knowledgeable, prompt and very reasonably priced. He had the required parts with him and completed the repairs immediately. Very important to me, (and should be conveyed to all of your people), He gave me concise and truthful information - he didn’t try to “B.S.” me as so many furnace repairmen can. I will recommend this company whenever possible.
Jim Griffin

The Thomason Mechanical & Design people were very friendly and very helpful in explaining the system. We are very happy with our new Trane furnace and air conditioner and the company is great to work with.
Patricio & Penny Aguiar
Rohnert Park

Thomason Mechanical exceeded our expectations for multiple reasons; professionalism, speed of providing our estimate, installation, cleanliness and friendliness.
Amy Bartholow
Santa Rosa

Member of
Sonoma County Heating and Cooling Association heating cooling sonoma

CA Contractor Lic.

Heating & Air Conditioning Company for Sonoma and Marin

furnace company sonoma county Are you looking for a quality Heating and Air Conditioning Company that only services the Sonoma and Marin County Area? We believe our Petaluma location is perfectly situated to serve the heating and cooling needs of the North Bay Community. We simply love to keep people comfortable in their homes by installing high quality furnaces and air conditioners by Trane.

We also service all brands of furnaces, air conditioners and wall heaters. Our service team takes pride in their fast response times to your home or office.

Marin furnace installation

Trane Comfort Specialist

We install Trane Furnaces
and Air Conditioners for:
  • Residential
  • Remodeling
  • Commercial
As a Trane Comfort Specialist you know you are getting the very best Heating and Cooling Contractor in the Marin-Sonoma area. You can count on us to provide you with a solution that fits your family's budget and lifestyle. And since we've installed thousands of indoor comfort systems in the Sonoma and Marin County, we've earned a reputation for keeping our customers happy.

We believe a happy customer is the best word of mouth marketing a heating and cooling company can wish to have.

Sonoma Furnaces Repair

If you have a furnace or Air Conditioning issue
we provide professional and efficient solutions

From the most complex furnace installation to routine service and maintenance of your air conditioner, we have the tools and the talented technicians to keep your homes furnace and air conditioning system working the way it is supposed to.

Our Commitment to Heating
and Air Conditioning Training

Thomason Mechanical is passionate about providing up-to-date employee training with Trane’s latest heating and cooling technology to ensure that we provide you the optimum performance system on the market

  • Service and Maintenance
  • Furnace and A/C Installations

We Serve the Sonoma and Marin County Area

1120 Industrial Ave #21
Petaluma, CA 94952
Office: (707) 765-6116

Online Financing The Sonoma County Energy Independence Program helps home owners finance...
» read more sonoma county heating


Serving Petaluma and the surrounding Sonoma Marin County Area

Cool Summer Savings
are Coming heating service sonoma county

Warm Winter Coupons are also on the front burner furnace repairs marin county

CA Contractor Lic.