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 Sebastopol, CA
Most Sebastopol homes don’t need central air conditioning at all. The cool Pacific fog rolling through the Petaluma Gap keeps summer temperatures in the 60s and 70s, so when Sebastopol homeowners call us, they’re usually dealing with a cold, damp house in January or trying to swap out an old wall furnace for something cleaner. We’re Brandt HVAC, and we handle heating repairs, heat pump installations, and maintenance calls across Sebastopol’s older neighborhoods. Our technicians arrive with a photo ID badge, a name you already know, and a written price before any work starts. Call us at (984) 538-9003.
Why Sebastopol Homes Are Different
Sebastopol’s housing stock tells the whole story. Most homes here are pre-1960s craftsman bungalows, farmhouses, and small cottages left over from the apple-orchard days. They were built without central ductwork and heated originally with wall furnaces, wood stoves, or floor heaters. Running new ducts through balloon-frame walls or pier-and-beam foundations often costs more than the heating system itself, so ductless mini-split retrofits have become the standard approach.
The persistent marine layer keeps this area cooler and damper year-round than Santa Rosa just eight miles east. That dampness creates real problems: mold risk climbs in older homes with poor air circulation, and we’ve found that ERV and HRV ventilation systems solve problems homeowners didn’t know were HVAC-related. A growing share of our calls come from households with rooftop solar who want to drop natural gas entirely. These jobs require us to calculate electrical panel capacity, understand utility net-metering rules, and size heat pumps correctly for heating-only loads. It’s a different skill set than what most Sonoma County contractors need.
Our Main Sebastopol Services
Sebastopol homeowners call us most often for heating repairs and heat pump work, though we still service the occasional cooling system in sunnier pockets east of downtown.
AC Repair in Sebastopol
True AC repair calls are rare in Sebastopol’s fog belt, but they do happen. Some newer homes near the eastern edge get enough sun to strain a cooling system, and we also repair ductless mini-splits that handle both heating and cooling. The coastal moisture can corrode outdoor condenser coils faster than inland locations, so we check electrical connections and refrigerant levels carefully. If your mini-split is blowing warm air in summer or not defrosting properly in winter, AC Repair in Sebastopol covers what we typically find and how we price it.

Furnace Repair in Sebastopol
Wall furnaces, floor heaters, and older gas furnaces still heat many Sebastopol homes, and they fail most often on the coldest, dampest nights. We carry igniters, flame sensors, and blower motors for Goodman, Rheem, and York units on our trucks, which matters when you’re heating with a 40-year-old wall furnace and parts are getting scarce. Before we replace anything, we test heat exchangers for cracks. Carbon monoxide risk in tight, older homes is real. For common failures and what they cost, see Furnace Repair in Sebastopol.

AC Maintenance in Sebastopol
Maintenance here looks different than in hot-climate towns. We focus on heat pump efficiency, drain line clearing (mold and algae grow fast in this humidity), and verifying that ventilation systems are actually moving air through the house. Our tune-ups include a written report of what we found, not a sales pitch. Technicians aren’t paid on commission, so the recommendation to add an ERV or clean your blower wheel comes only if it’s genuinely needed. Schedule through AC Maintenance in Sebastopol.

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 Sebastopol
We repair and maintain Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard equipment. Our trucks stock common igniters, capacitors, and contactors for Goodman, Rheem, and York systems, which cuts wait times for standard repairs. For heat pump or mini-split parts on Daikin and other brands, we typically source within 24 – 48 hours through our San Francisco Bay Area supply network.
Pricing for HVAC Company in Sebastopol, CA
| Service | Typical range in Sebastopol |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3,500 – $7,500 |
| Tune-Up | $80 – $200 |
Prices in Sebastopol run toward the higher end of these ranges when we’re retrofitting ductless systems into older homes with limited electrical capacity or balloon-frame construction that complicates line-set routing. We always provide a written, itemized price before any work begins. No exceptions, no surprises.
Neighborhoods We Serve in Sebastopol
Our technicians live in and around Sonoma County, so most Sebastopol calls reach us within 30 – 45 minutes during business hours and under an hour for after-hours emergencies.
- Sebastopol
- Pleasant Hill
- Valley Ford area
- Bodega Highway corridor
- Laguna de Santa Rosa vicinity
Service Area – Cities Near Sebastopol
We dispatch crews throughout western Sonoma County from our San Francisco Bay Area coordination office. If you’re just outside Sebastopol city limits, we also serve Santa Rosa, CA, Forestville, CA, Rohnert Park, CA, and Cotati, CA.
Serving Sebastopol, CA - Our Local Coverage Area
We’re based in the Sebastopol 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 Sebastopol
Most emergency heating calls in Sebastopol reach us within 30 – 45 minutes during the day, under an hour at night. Phones are answered by a live person 24 hours a day, 7 days a week. Call (984) 538-9003 and we’ll give you a real ETA.
Yes, the City of Sebastopol requires permits for furnace replacements and new heat pump installations. We handle the permit paperwork as part of the project, including Title 24 compliance documentation for heat pump conversions. The permit cost is listed separately on your written estimate.
We’ve worked with several Sebastopol HOAs on mini-split installations and exterior unit placement. We provide the technical specifications, noise ratings, and installation drawings most associations require. Ask us during scheduling and we’ll coordinate directly with your property manager if needed.
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 Sebastopol Customers Say
"Knowing a vetted tech was coming into my house made a difference. Name and photo texted ahead, shoe covers, polite, and thorough with explaining."
- Tina M."Drain line was clogging and causing a leak by the air handler. They cleared it and installed a float switch so it can't flood again."
- Nora T."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.







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