Service area
HVAC services in Fairfax, CA
Heating and cooling for Fairfax's cottages and hillside homes at the western end of the Ross Valley.
Small homes, tight spaces
Fairfax started out as a weekend getaway, and many of its homes began as summer cabins and cottages that were added onto over the years. Mechanical spaces are small, crawl spaces are low, and heating was often an afterthought. Wall furnaces and small forced-air systems are common, and so are ducts that never reached the rooms added later.
Warm days, chilly nights
Tucked against the hills, Fairfax gets warm summer afternoons and cool, damp nights, and wooded lots keep some homes in shade all winter. We size heating for the coldest rooms, not the sunniest, and can add cooling with a heat pump when it is time to replace.
Good to know
Can you add heat to a room that was added on later?
Usually. Depending on the house, that can mean extending a duct run, adding a return or another approach for that room. We look at the layout and the system before recommending anything.
How much does heating or AC repair cost in Fairfax?
Costs vary by the issue and the system, which is why we give you a clear, upfront estimate before any work begins. No hidden fees or surprises.
Should I repair or replace my system?
If your system is over 15 years old and needs a major repair, replacing it often makes more sense. If it is younger, a repair usually does. We give you both prices and an honest opinion, and repair first whenever repair is the better value.
From our clients
“They are professional and efficient. I've gotten estimates from other HVAC companies in the area, and Bay Air is by far better than the rest on both pricing and quality of work.”
Lynn S.
“The HVAC technicians have always been punctual, knowledgeable, and reasonable, and they've never tried to sell us services or repairs that weren't necessary. I really appreciate knowing things are done right every time!”
Kerry T.
“Bay Air Heating & Cooling did a wonderful job on the installation of our new HVAC system. They explained everything in detail and were very professional. Our garage was left spotless and the system has ran perfectly since they left.”
Scott S.
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Let's make your home comfortable again
Send a few details and we will call you back to find a time. Prefer to talk? We are here 7 days, 8am to 8pm.
- Phone
- (628) 289-3552
- Hours
- 8am to 8pm, 7 days a week