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 San Anselmo, CA
San Anselmo sits in the Ross Valley, where summer heat collects against the hills and winter fog rolls down from the ridges. The homes here run the full range from 1920s Craftsman bungalows to 1970s hillside builds, and almost none of them share the same duct layout. If your air conditioner quits in August or your furnace rattles through January, you’re not calling for a generic fix, you’re calling for a crew that knows San Anselmo’s housing stock and terrain. That’s what Dalton Heating & Air does here. Call (361) 306-9515 for a free estimate.
Why San Anselmo Homes Are Different
San Anselmo’s housing stock is old enough that most systems were retrofitted, not original. The pre-1950 homes we see around downtown and along Red Hill Road often have furnaces tucked into closets and condensing units squeezed onto side yards. The 1960s hillside homes above Butterfield Road and up toward Sleepy Hollow carry longer duct runs, which means more static pressure and more places for conditioned air to leak before it reaches the bedroom wing.
The climate does something specific here too. San Anselmo gets genuine heat in July and August, often 90-plus degrees for stretches, but the nights drop back into the 50s. That temperature swing puts real stress on older compressors and contactors. Fall brings damp air up from the creek corridors, and furnaces that sat idle since April fire up against that moisture. The terrain matters for install crews as well. Many San Anselmo lots are sloped, and outdoor heat pump placement has to account for drainage, not just clearance.
Our Main San Anselmo Services
Most calls we take in San Anselmo come down to two broad jobs: keeping the cooling alive through late summer and getting heat reliable for the wet, cold months. These pages cover what each job costs, how we approach it, and what makes it different in this area.
AC Repair in San Anselmo
When an AC gives up in San Anselmo, it’s usually on a Tuesday afternoon in August, when the indoor temperature is climbing past 80 and nobody can find the right capacitor. We see a lot of hard-start failures on older units around Red Hill Road and the flats near Sir Francis Drake Boulevard. The repair starts with a full system check, then a written price before any work. AC Repair in San Anselmo covers the common failures and the cost ranges.

Heat Pump Installation in San Anselmo
Heat pumps are the right conversation for a lot of San Anselmo homes, especially those without natural gas or with aging electric baseboards. The variable-speed units handle the shoulder seasons well here, when you need a little heat in the morning and a little cooling by 3 p.m. Placement matters on hillside lots where drainage and airflow change the unit’s efficiency. Heat Pump Installation in San Anselmo walks through sizing, placement, and cost.

Furnace Repair in San Anselmo
A furnace that won’t light on the first genuinely cold night in November is a San Anselmo problem with a San Anselmo answer. Older standing-pilot furnaces along Butterfield Road and the streets off Center Boulevard need different diagnostic work than the newer induced-draft units. We test the inducer motor, flame sensor, ignitor, and gas valve, then give an exact written price. Furnace Repair in San Anselmo has the details.

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 San Anselmo
We stock common parts for Trane, Lennox, Goodman, and Rheem systems, which covers a large share of what’s installed across San Anselmo. Factory-trained technicians handle all brands, and stocked parts mean most repairs finish on the first visit. See our brands for the full list.
Pricing for HVAC Company in San Anselmo, CA
| Service | Typical range in San Anselmo |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| AC installation | $3,500 – $7,500 |
| Seasonal tune-up | $80 – $200 |
Sloped lots and older ductwork are the two things that most often push a San Anselmo job toward the upper end of those ranges. No matter what the job turns out to need, you’ll get the price in writing before any work starts, and the repair carries a written guarantee for a full year.
Neighborhoods We Serve in San Anselmo
We work throughout the town, from the flats near downtown to the hillside streets that climb toward the open space. If you’re somewhere in the Ross Valley and your system fails, we’ll get a technician to you, usually within the same day for repair calls.
- Sleepy Hollow
- Butterfield Road area
- Red Hill Road area
- Downtown San Anselmo
- Hillcrest
Service Area – Cities Near San Anselmo
Dalton Heating & Air dispatches from the San Francisco Bay Area and serves San Anselmo with local crews. We also cover the surrounding towns: Fairfax, CA, Kentfield, CA, San Rafael, CA, and Larkspur, CA.
Serving San Anselmo, CA - Our Local Coverage Area
We’re based in the San Anselmo 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 San Anselmo
For AC and furnace repair calls in San Anselmo, we typically arrive the same day. Heat and cooling failures in this climate are not a convenience issue, so we prioritize repair dispatch over scheduled installs.
It depends on the scope. Furnace or heat pump replacements on existing systems generally need a mechanical permit, and most HOAs in San Anselmo require board approval before any outdoor unit is placed. We handle the paperwork on permitted jobs.
We stock the common wear items for most major brands, including Trane, Lennox, Goodman, and Rheem. If we need something uncommon, we’ll tell you exactly when it lands and work the repair around that date, with no charge for return labor.
Call Dalton Heating & Air at (361) 306-9515 for a free estimate on any HVAC work in San Anselmo. A real person answers around the clock, and the price is in writing before the work begins.
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 San Anselmo Customers Say
"Changed the filter size and added a better filter rack. Simple and useful advice."
- Rhonda C."Honest, direct people. Told me what the furnace needed and nothing more, and the bill matched."
- Eliza S."Coil cleaning and a refrigerant check before summer. AC has never been this cold."
- Marty D.







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