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 Kentfield, CA
Most Kentfield homeowners need an HVAC company that understands the Ross Valley’s unusual thermal pocket, where summer afternoons hit 90 – 100°F while coastal Marin stays in the 60s, then nights drop 30 – 40°F as marine air drains in. We’re Brandt HVAC, and we size, repair, and maintain systems for those real swings, not the “mild Bay Area” assumptions that leave neighbors sweating through August. Call us at (984) 538-9003 for upfront pricing and a technician sent to you by name and photo before arrival.
Why Kentfield Homes Are Different
Kentfield sits in a geography that breaks every Bay Area stereotype. The hills east of Mount Tamalpais shelter the Ross Valley from the Pacific marine layer just long enough each afternoon to turn this into one of the warmest spots in Marin County. By evening, that same marine air eventually drains through, cold-pooling the valley overnight. The thermal cycle compresses into hours, not days, and equipment sized for “mild” coastal Marin fails here faster than it would in San Rafael or Novato.
The housing stock compounds the challenge. Kentfield’s homes are predominantly older single-family builds, craftsman bungalows and colonial revivals from the 1920s – 1940s alongside 1950s – 60s ranch-style homes. Many sit on post-and-beam or raised foundations with tight crawlspaces that make duct replacement genuinely difficult. A significant share were built with no central duct infrastructure at all, originally heated by floor furnaces or wall heaters. High property values and historically incremental renovations mean we routinely encounter mismatched, piecemeal duct systems, or we engineer full retrofit solutions into homes never designed for central HVAC.
Permits run through unincorporated Marin County Building & Safety, not any city department. Inspectors enforce California Title 24 duct leakage requirements and HERS verification strictly. Contractors accustomed to lighter-touch enforcement in incorporated nearby cities sometimes get caught by mandatory third-party duct blaster testing that applies even to moderate duct alterations here.
Our Main Kentfield Services
These are the three services Kentfield homeowners call us about most. Each has its own dedicated page with local details, pricing, and scheduling.
AC Repair in Kentfield
When afternoon temperatures spike in the Ross Valley thermal pocket, a failing compressor or refrigerant leak isn’t uncomfortable, it’s unlivable. We stock common capacitors, contactors, and refrigerant for Trane, Lennox, Goodman, and Rheem systems locally, and most repairs finish same day. Our technicians carry digital gauges calibrated for the newer refrigerants we see in Kentfield’s mix of vintage and updated equipment. AC Repair in Kentfield covers capacitor replacement, compressor diagnostics, refrigerant recharges, and electrical troubleshooting for the specific conditions these homes face.

Furnace Repair in Kentfield
Kentfield’s cold-pooling nights put real demand on furnaces that coastal Marin barely touches. We repair gas valves, igniters, heat exchangers, and blower motors across the full age spectrum of local equipment, from original floor furnaces in pre-war homes to modern 90% AFUE units in renovated properties. Because many systems here are original or near-original, we carry universal and OEM parts for discontinued models when possible. Furnace Repair in Kentfield includes combustion analysis and carbon monoxide testing on every call, with written results before we leave.

AC Maintenance in Kentfield
The compressed thermal cycle here means systems run harder in shorter bursts, accelerating wear on capacitors and contactors. Our maintenance visits include coil cleaning, refrigerant level verification, electrical connection torque checks, and duct leakage inspection, with a written report of what we found, not what we want to sell. Technicians are not paid on commission. AC Maintenance in Kentfield is scheduled to beat the seasonal rush, with spring and fall slots that match how Ross Valley weather actually behaves.

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
We service all major residential HVAC brands including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common capacitors, contactors, igniters, and refrigerant for Trane, Lennox, Goodman, and Rheem systems at our San Francisco Bay Area office, with most parts available for same-day Kentfield calls. Our brands page lists full coverage and typical part availability.
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 |
What pushes Kentfield prices toward the higher end: tight crawlspace access requiring additional labor, duct retrofit work in homes without original central air infrastructure, and mandatory third-party HERS verification and duct blaster testing for permitted alterations. Every job begins with a written price before any work starts. No exceptions.
Neighborhoods We Serve in Kentfield
We dispatch crews throughout Kentfield’s residential areas from our San Francisco Bay Area office, with most calls reached within the hour during business hours and emergency response coordinated live by phone, 24/7.
- Kent Woodlands
- Kentfield Estates
- Greenbrae Hills (Kentfield-adjacent)
- Barbara Lane area
- Sir Francis Drake Boulevard corridor
Service Area – Cities Near Kentfield
Our crews work throughout central and southern Marin County. We regularly schedule calls in Larkspur, CA, San Anselmo, CA, San Rafael, CA, and Corte Madera, CA, with routing optimized for same-day availability across the Ross Valley and Highway 101 corridor.
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
Most Kentfield calls are reached within an hour during business hours. After hours, a live person answers our phone 24/7 and coordinates emergency dispatch directly, no callback queue. Call (984) 538-9003 for current availability.
Yes, and Kentfield’s unincorporated status means permits run through Marin County Building & Safety, which enforces California Title 24 duct leakage rules and mandatory HERS verification more strictly than many incorporated nearby cities. We handle permit paperwork on every job that requires it.
Absolutely, and we do it regularly in Kentfield. Many 1920s – 1940s homes here were built with floor furnaces or wall heaters and no central duct infrastructure. We engineer retrofit solutions, including ducted mini-split options, sized for the Ross Valley’s real heating and cooling loads.
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
"AC stopped cooling on a hot afternoon. Tech arrived with a badge, checked the capacitor, found it bad, and replaced it on the spot. House cooled down within the hour."
- Steve P."Furnace ignitor went out on a cold morning. Part was on the truck, installed in thirty minutes."
- Alvin K."Annual tune-up on the furnace. He cleaned the burners, tested the heat exchanger, and told me what was fine and what to watch. No scare tactics."
- Lorraine E.







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