Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
HVAC Company in Fairfax, CA
Dalton Heating & Air handles HVAC work across Fairfax, CA, from hillside homes off Sir Francis Drake Boulevard to older bungalows in the flats near downtown. Fairfax heating and cooling jobs run into specific conditions: mild summers that still spike into the 90s, winter nights that dip low enough to freeze an undersized heat pump, and a housing stock built between the 1920s and 1970s where ductwork and electrical panels often need attention before new equipment goes in. Call (361) 306-9515 when you need a repair, a replacement, or a straight answer about what your system actually needs.
Why Fairfax Homes Are Different
Fairfax sits in a microclimate pocket that runs cooler and wetter than most of Marin. Summer fog rolls over White Hill in the afternoon, which means your AC may run hard for five hours and idle the rest of the day. That short-cycling pattern is hard on compressors, and it changes what we recommend for efficiency ratings. A system sized for San Rafael heat is often oversized for Fairfax, and an oversized system in Fairfax will cool the house too fast, leave humidity behind, and wear out its condenser years early.
The terrain matters too. Homes climb the slope toward Deer Park, Cascade Canyon, and the ridges above the Meadow Club. Those properties get real afternoon sun on their west-facing walls, and rooftop condensers up there take direct exposure. We also see a lot of older Fairfax homes with original gravity furnaces or first-generation forced air conversions, and ducting squeezed into spaces nobody would build today. None of that is a problem if the technician knows what he is looking at before he starts. Marco Benitez and our crews do.
Our Main Fairfax Services
Fairfax homeowners call us most often for two things: getting a dead AC or furnace running again, and planning a heat pump install that makes sense for this climate and this house. Each service has its own Fairfax page with full pricing detail.
AC Repair in Fairfax
Fairfax AC repair calls tend to spike in August and September, when the fog pulls back and the valley heat sits. The work ranges from capacitor and contactor replacements to refrigerant leak repairs and condenser fan motor swaps. On stucco homes up the hill, we check for overworked blowers and dirty coils caused by dry brush dust blowing down from the open space. If your system is short-cycling, blowing warm air, or making noise it should not make, start with AC Repair in Fairfax and get the full cost breakdown.

Heat Pump Installation in Fairfax
Heat pump installation in Fairfax is the most requested replacement job we do now, and for good reason: a properly sized heat pump handles both the short cooling season and the long damp winter without a gas line. The local challenge is choosing the right unit for a climate that swings between 40-degree nights and 90-degree afternoons, and sizing it for a house that may have older insulation. Load calculation matters here more than any other city we serve. Heat Pump Installation in Fairfax covers equipment options, rebate paperwork, and the install timeline.

Furnace Repair in Fairfax
Fairfax furnace repair work often means gas valves, ignitors, and flame sensors on systems that run hard through the rainy season. Homes in the flats near downtown tend to be older and may still have 80% efficient furnaces that were installed decades ago. Those units can be repaired, but we will tell you honestly whether the repair dollar makes sense on a system approaching the end of its life. For the full pricing range and what a typical repair involves, see Furnace Repair in Fairfax.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Fairfax
Our techs are factory-trained on the equipment Fairfax homes actually have. We service Trane, Lennox, Goodman, and Rheem systems daily, and we keep common parts for those brands stocked locally so repair visits do not stall on a two-week part order. See our brands for the full list and what factory training means for your system.
Pricing for HVAC Company in Fairfax, CA
| Service | Typical range in Fairfax |
|---|---|
| AC repair (diagnostic and common part) | $150 – $650 |
| Capacitor or contactor replacement | $150 – $300 |
| Refrigerant leak repair and recharge | $300 – $650 |
| Condenser fan motor replacement | $250 – $550 |
| Furnace repair (ignitor, flame sensor, gas valve) | $150 – $700 |
| Furnace gas valve replacement | $200 – $500 |
| Furnace blower motor replacement | $300 – $650 |
| AC installation (full system) | $3,500 – $7,500 |
| Heat pump installation | $4,500 – $7,500 |
| Furnace installation | $3,500 – $6,500 |
| Seasonal tune-up | $80 – $200 |
Fairfax prices run higher on hillside homes where access is tight, condensers sit on roofs, or electrical panels need a subpanel feed before a new system can go in. The price we quote is the price you pay. It goes in writing before any work starts, no exceptions.
Neighborhoods We Serve in Fairfax
We run calls across all of Fairfax, from the downtown flats up into the hills, and we know which streets have the tight driveways and which HOAs need a heads-up before a condenser gets placed. Response time across Fairfax is typically same-day for repair calls, with a confirmed arrival window before we head out.
- Downtown Fairfax and the flats
- Cascade Canyon
- Deer Park
- Oak Manor
- Areas off Sir Francis Drake Boulevard
Service Area – Cities Near Fairfax
Dalton Heating & Air covers Fairfax and the surrounding Marin County communities. Scheduling and dispatch run through our San Francisco Bay Area office, and crews serve Fairfax locally. If you are in a neighboring town, we also handle HVAC work in San Anselmo, CA, Kentfield, CA, San Rafael, CA, and Larkspur, CA.
Serving Fairfax, CA - Our Local Coverage Area
We’re based in the Fairfax area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Fairfax
Most Fairfax repair calls get same-day service when you call before early afternoon. We give you a confirmed arrival window before the truck leaves, and a real person answers the phone 24/7. Call (361) 306-9515 and we will tell you exactly when to expect us.
Most equipment change-outs in Fairfax need a permit through the Town of Fairfax or Marin County depending on where the home sits. We handle the permit paperwork as part of the job, and the permit fee is included in your written quote before work starts. Nothing gets installed without the required sign-off.
No surprise fees. If your home has a rooftop condenser, a steep driveway, or long equipment runs, that is factored into your written quote upfront, not tacked on at the door. Every Fairfax job follows The Garrison Standard: price in writing before work begins, no exceptions.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Fairfax Customers Say
"Coil cleaning and a refrigerant check before summer. AC has never been this cold."
- Marty D."Good communication, tidy, and disciplined work. Taped off the floor and wiped the unit down."
- Karen J."Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B.







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