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 Windsor, CA
Dalton Heating & Air handles heating and cooling work across Windsor, CA, from quick AC repairs to full heat pump installations and furnace fixes. Windsor’s mix of 1980s and 1990s tract homes, newer subdivisions east of Highway 101, and a handful of older ranch properties means we see a wide range of equipment ages and duct layouts on any given week. Summer highs regularly push into the 90s, and winter nights dip into the 30s, so systems here work hard in both directions. Call (361) 306-9515 and you’ll reach a live person, not a voicemail queue.
Why Windsor Homes Are Different
Windsor sits on the Santa Rosa Plain, which means two things for HVAC equipment: real summer heat that settles in for weeks, and cool, damp mornings that can stress older furnaces and heat pumps. Homes in neighborhoods like Old Downtown Windsor and the developments near Windsor High School were largely built in the 1980s through early 2000s, so original furnaces and condensers are now 20 to 40 years old. That age shows up as failed capacitors, worn blower motors, and refrigerant leaks on R-22 systems that can no longer be recharged cheaply.
Windsor’s terrain is mostly flat, but homes on the western edge toward Foothill Regional Park sit on slightly elevated lots that catch afternoon sun harder than the valley floor. We also see a fair number of homes with the original ductwork still in place. Duct leaks in a Windsor attic mean a system that runs longer and still doesn’t hold temperature on a 95-degree day. The local climate is dry enough that coil corrosion is less common than in coastal towns, but dust from open fields and vineyards gets pulled into outdoor units, so cleanings matter more here than homeowners expect. Some neighborhoods have HOA rules about where a condenser can sit or how it’s screened, and we account for that before quoting installation work.
Our Main Windsor Services
Most calls we get in Windsor fall into two buckets: a system that stopped cooling or heating, and a replacement that’s overdue. Here’s what each looks like on the ground here.
AC Repair in Windsor
When a Windsor home’s AC quits in July, it’s usually one of a handful of culprits: a failed capacitor, a contactor that’s arced out, a refrigerant leak, or a condensate drain that’s backed up and tripped the safety switch. Our technicians diagnose the exact failure, show you the written price before turning a wrench, and carry common parts on the truck so most repairs finish in one visit. Full details, including Windsor-specific failure patterns, are on our AC Repair in Windsor page.

Heat Pump Installation in Windsor
Heat pumps are a strong fit for Windsor’s climate. Winters rarely drop below freezing for long, so a modern heat pump handles both the winter chill and the summer heat without a separate furnace. We size the system to your home’s actual load, not a rule of thumb, and the installed price is in writing before any equipment is ordered. Learn what a properly sized heat pump costs and how the installation works on our Heat Pump Installation in Windsor page.

Furnace Repair in Windsor
When a Windsor furnace won’t fire on a cold December morning, the cause is usually a failed ignitor, a dirty flame sensor, or a limit switch that’s tripped. Those are straightforward fixes our techs do every week. The larger risk is an older furnace that still uses a cracked heat exchanger, which is a carbon monoxide hazard and should never be run. We inspect and repair furnaces across Windsor. See our Furnace Repair in Windsor page for common symptoms and repair pricing.

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 Windsor
Our technicians are factory-trained on Rheem, York, Daikin, and Bryant equipment, among others. Most Windsor homes run one of the nine major brands, and we keep common parts stocked locally so most repairs happen same-day rather than waiting on a shipment. See our brands for the full list of what we work on.
Pricing for HVAC Company in Windsor, CA
| Service | Typical range in Windsor |
|---|---|
| AC repair – capacitor or contactor | $150 – $350 |
| AC repair – refrigerant leak repair | $400 – $650 |
| Furnace repair – ignitor or flame sensor | $150 – $350 |
| Furnace repair – blower motor | $350 – $700 |
| AC installation – full system | $3,500 – $7,500 |
| Tune-up – cooling or heating | $80 – $200 |
What pushes a Windsor job toward the top of a range is usually access. A furnace in a crawlspace under an older home near downtown takes longer to reach than one in a hallway closet, and a condenser tucked behind a fence on a zero-lot-line lot adds labor. The price we quote is the price you pay, in writing, before any work starts. No surprises at the door.
Neighborhoods We Serve in Windsor
Dalton Heating & Air works throughout Windsor and the surrounding areas, including these neighborhoods:
- Old Downtown Windsor
- Windsor Meadows
- Brooks Creek
- East Windsor near Highway 101
- Foothill Ranch
Most Windsor calls get a technician on site the same day, and we schedule ahead for installation work so you know exactly when the crew arrives.
Service Area – Cities Near Windsor
Windsor sits between Healdsburg to the north and Santa Rosa to the south, and we cover the surrounding towns as well. Our crews handle HVAC work in Healdsburg, CA, Forestville, CA, Santa Rosa, CA, and Sebastopol, CA. Scheduling is coordinated from our San Francisco Bay Area office, with technicians dispatched locally to Windsor.
Serving Windsor, CA - Our Local Coverage Area
We’re based in the Windsor 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 Windsor
Most Windsor calls get same-day service, and we answer the phone live 24 hours a day, 7 days a week. If your AC has failed during a heat wave or your furnace won’t start, call (361) 306-9515. We’ll get a technician dispatched as soon as one is available, and in practice that’s almost always the same day for Windsor addresses.
For most repairs, no. Replacing a furnace, heat pump, or AC system typically requires a permit through the Town of Windsor building department. We pull the permit as part of the installation and handle the inspection with you, so you’re not left chasing paperwork. Any HOA restrictions on condenser placement get checked before we quote.
Yes. A heating or cooling tune-up in Windsor runs $80 to $200 depending on the system, and we do them year-round. We inspect, clean, and test the system, then leave you a written report of what we found, including photos of anything that’s wearing. If you call (361) 306-9515, we’ll set a window and show up on time.
Contact Dalton Heating & Air in Windsor, CA
If you’re in Windsor and need heating or cooling work, call (361) 306-9515. We answer live, any hour. You’ll get a written price before any work starts, a written guarantee on every repair, and a technician who shows up inside the stated window. That’s the Garrison Standard, and it applies to every job we do in Windsor.
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 Windsor 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.







Before
After
Before
After
Before
After