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.
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AfterHVAC Company in Kentfield, CA
Most HVAC calls we take from Kentfield involve homes built between the 1940s and 1970s that were never designed for mechanical cooling, paired with a Ross Valley climate that swings from foggy 50°F mornings to 95°F afternoons when Diablo winds push through. Coldharbour Heating & Air dispatches technicians from our San Francisco Bay Area office to handle AC repair, furnace repair, and AC installation throughout Kentfield, with live phone coverage at (817) 402-2972 around the clock. Our 365-Day Done Right Promise applies to every repair we make in Marin County.
Why Kentfield Homes Are Different
Kentfield sits at the base of Mt. Tamalpais in Ross Valley and hosts one of the Bay Area’s most-cited rain gauges, regularly recording 50-55 inches of annual precipitation. That moisture, combined with Pacific marine air funneled through the valley, creates a set of HVAC problems most Bay Area towns simply don’t see.
The housing stock here is dominated by mid-century ranch, colonial-revival, and split-level homes built for historically mild Marin temperatures. Original systems typically include only forced-air heating, often with aging sheet-metal or early flex ductwork, and no mechanical cooling. Hillside parcels climbing toward Mt. Tamalpais add awkward crawlspaces or pier-and-beam foundations that complicate both duct replacement and new system routing.
We’ve found flex duct inner liners in lower-valley Kentfield homes that have separated and collapsed from moisture saturation, a failure pattern far more common here than in drier neighboring towns. The near-constant high humidity also accelerates corrosion on outdoor condenser coils and promotes mold colonization inside crawlspace duct systems. When offshore Diablo wind events trap heat in the valley, temperatures spike 30-40°F above morning lows within hours, stressing equipment sizing decisions for any new installation.
Our Main Kentfield Services
These are the three services Kentfield homeowners call us about most often. Each has its own dedicated page with detailed local information.
AC Repair in Kentfield
AC repair calls in Kentfield often trace back to systems that were retrofitted into homes never designed for cooling. We see compressor strain from undersized electrical service, refrigerant lines routed through tight crawlspaces where condensation pools, and condenser coils degraded faster than expected by the valley’s persistent humidity. Our technicians carry common capacitors, contactors, and refrigerant for Trane, Lennox, and Goodman systems to complete most repairs in a single visit. AC Repair in Kentfield
Furnace Repair in Kentfield
Furnace repair in Kentfield means working on aging gas-fired units, many original to 1960s and 1970s homes, with heat exchangers that have cycled through decades of marine-influenced corrosion. Igniter failures, blower motor bearing wear, and cracked exchangers are the failures we diagnose most often. We inspect the full duct path on every furnace call because collapsed flex duct downstream of a working furnace is a common hidden cause of “no heat” complaints in this moisture-heavy environment. Furnace Repair in Kentfield
AC Installation in Kentfield
AC installation in Kentfield is almost always a first-time retrofit, which means load-calculating for homes with no existing cooling infrastructure, no dedicated 240V circuits, and often insufficient attic or crawlspace clearance for conventional duct extensions. We size for the valley’s rapid thermal swings, not just average summer highs, and we specify corrosion-resistant condensers rated for sustained humidity exposure. Every installation gets a written fixed price and a scheduled install date; rebates and financing paperwork are handled by our team. AC Installation in Kentfield
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 Kentfield
Our technicians are trained to service nine major residential HVAC brands including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common capacitors, contactors, igniters, and blower motors for Trane, Lennox, Goodman, and Rheem systems locally, which keeps most Kentfield repair calls to a single visit. our brands
Pricing for HVAC Company in Kentfield, CA
| Service | Typical range in Kentfield |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
Prices in Kentfield tend toward the higher end of these ranges when jobs require crawlspace duct replacement, electrical service upgrades for first-time AC, or corrosion-damaged coil replacement from sustained humidity exposure. We hand you a written price before any work begins, and that number does not change at the door.
Neighborhoods We Serve in Kentfield
Our crews work throughout Kentfield’s valley floor and hillside parcels, from the lower-lying areas near Corte Madera Creek up toward the Mt. Tamalpais slopes. Most calls reach a technician within the same day.
- Kent Woodlands
- Greenbrae Hills (Kentfield-adjacent)
- Barry Avenue corridor
- Evergreen Avenue area
- Sir Francis Drake Boulevard corridor
Service Area – Cities Near Kentfield
We dispatch regularly to Larkspur, CA, San Anselmo, CA, San Rafael, CA, and Corte Madera, CA from our Bay Area scheduling office. If you’re unsure whether your address falls within our service radius, call (817) 402-2972 and we’ll confirm while you have us on the line.
Serving Kentfield, CA - Our Local Coverage Area
We’re based in the Kentfield 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 Kentfield
We typically dispatch a technician to Kentfield the same day for heating or cooling emergencies, with live phone coverage 24 hours a day. Call (817) 402-2972 to check current availability.
Most AC installations in Kentfield require a Marin County building permit and compliance with local noise ordinances for outdoor condenser placement. We handle permit paperwork as part of our installation process.
Yes. Our technicians service all major brands including Rheem and Lennox, and we stock common parts for these systems locally. Even if your unit is decades old, we’ll diagnose it honestly and give you a written price before any 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 Kentfield Customers Say
"Furnace wouldn't light the first cold morning. The guy walked me through what he was checking so I actually understood it. Replaced the igniter, wrote up the warranty, and it's been warm since."
- Alicia Romero"AC died overnight with a newborn in the house. They bumped us up the list and had it running by noon. I about hugged the guy. Fair price even on a rush call."
- Celeste Ngo"The repair was done well and quickly. Scheduling over the phone was a little clunky and I got transferred twice, but the tech himself was great and on time."
- Brett Haygood