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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Before
AfterHVAC Company in Seattle, WA
Most Seattle homes were built without air conditioning, and the HVAC work here is fundamentally different from sunbelt cities: we retrofit cooling into 1920s Craftsman bungalows with no ductwork, upgrade 100-amp electrical panels to handle heat pumps, and repair furnaces that spent decades handling damp marine winters. Coldharbour Heating & Air dispatches from our Seattle office and covers the full metro, from Ballard to Beacon Hill. Call (817) 402-2972 and a live person answers, 24 hours a day.
Why Seattle Homes Are Different
Seattle’s core neighborhoods, Ballard, Wallingford, Queen Anne, Capitol Hill, and Fremont, are packed with 1900s-1940s Craftsman bungalows and early-century construction originally heated by cast-iron radiators or oil-fired forced-air furnaces with no return-air or cooling ductwork at all. The marine climate, persistently overcast, wet winters averaging 40-45°F, and summers that historically stayed below 80°F, convinced builders and buyers that air conditioning was unnecessary. That changed permanently in June 2021, when a heat dome drove Seattle to 108°F and caused dozens of deaths.
Now the dominant HVAC job in Seattle is not a like-for-like swap but a ground-up cooling retrofit into a structure architecturally designed to never have one. A technician’s standard call in Wallingford or Ballard is a 1920s Craftsman on a 100-amp electrical panel with a dead boiler and no ductwork, the homeowner wants heat pump cooling after 2021, but the panel must upgrade to 200 amps before any modern equipment can be energized. Seattle HVAC contractors routinely price and schedule electrical sub-work as a standard line item, a complexity that does not exist in cities where homes were built with central air from the start.
Washington State’s building code and Seattle City Light’s incentive programs have aggressively pushed all-electric heat pump adoption over gas furnace replacement, making the heat pump the default replacement path even when a gas furnace fails. This means Seattle homeowners need technicians who understand both the refrigeration side and the electrical infrastructure side of every job.
Our Main Seattle Services
Seattle homeowners call us most often for cooling repairs after rare but intense heat waves, furnace repairs during the long wet heating season, and AC installations into homes that have never had cooling before.
AC Repair in Seattle
Seattle AC units sit idle for ten or eleven months, then run hard for a few weeks when a heat dome hits or eastern Washington wildfire smoke traps heat. That intermittent use pattern causes unique failures: seized compressor contactors, capacitors that degrade in damp off-seasons, and refrigerant leaks at flare fittings that corrode in the marine air. Our technicians carry capacitors, contactors, and refrigerant for Goodman, Rheem, and Daikin systems on every truck, and most AC Repair in Seattle calls are completed same day because the parts are already in the van.
Furnace Repair in Seattle
Seattle furnaces work hardest from November through March, often running continuously through weeks of 40°F drizzle. The damp combustion air causes premature heat exchanger rust in older units, and high-efficiency condensing furnaces can freeze their condensate lines on the coldest nights. We see a lot of failed igniters and pressure switches in Rheem and York units that have cycled through decades of wet winters. Our Furnace Repair in Seattle includes a full combustion analysis and a written 365-Day Done Right Promise before we leave.
AC Installation in Seattle
Most Seattle AC installations are ductless mini-split retrofits into homes with zero existing cooling infrastructure, not conventional ducted central-air replacements. We mount the outdoor condenser on a pad or bracket, run refrigerant lines and power through a 3-inch wall penetration, and place wall-mounted or ceiling cassette air handlers room by room. Because many Seattle homes need electrical panel upgrades to 200 amps, we coordinate licensed electrical sub-work as a standard part of the job. Every AC Installation in Seattle comes with a written fixed price, a scheduled install date, and Seattle City Light rebate paperwork handled.
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 Seattle
Our technicians are trained to service nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock capacitors, contactors, igniters, and control boards for Goodman, Rheem, and Daikin systems on Seattle trucks, which keeps most repair calls to a single visit. See our brands for the full list.
Pricing for HVAC Company in Seattle, WA
| Service | Typical range in Seattle |
|---|---|
| AC Repair | $175-$765 |
| Furnace Repair | $175-$825 |
| AC Installation | $4,130-$8,850 |
| Tune-Up | $95-$235 |
What pushes Seattle prices toward the high end: electrical panel upgrades to 200 amps, mini-split systems requiring multiple indoor heads for larger Craftsman layouts, and permit coordination with Seattle Department of Construction and Inspections. Before any work begins, we hand you a written price that does not change, a core plank of The Kingswell Way.
Neighborhoods We Serve in Seattle
Our Seattle crews cover the city from the Ship Canal to West Seattle and from Magnolia to Rainier Valley. Most calls reach a technician within two hours during business hours and within four hours for after-hours emergencies.
- Ballard
- Wallingford
- Queen Anne
- Capitol Hill
- Fremont
Service Area – Cities Near Seattle
We dispatch from our Seattle office and serve the full metro area, including Medina, WA, Bellevue, WA, Mercer Island, WA, and Kirkland, WA. Scheduling and routing are coordinated locally, not from a distant call center.
Serving Seattle, WA - Our Local Coverage Area
We’re based in the Seattle 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 Seattle
Most Seattle calls get a technician on site within two hours during business hours, and our phones are answered by a live person 24 hours a day, 7 days a week. After-hours emergencies are typically handled within four hours. Call (817) 402-2972 to check current availability.
Yes, most AC installations and furnace replacements require permits from Seattle Department of Construction and Inspections. We pull permits as standard on every job that needs one, and we schedule inspections so you do not have to coordinate with the city yourself.
Absolutely, and that is most of our installation work here. We install ductless mini-split systems that need only a small wall penetration for refrigerant lines and power, no ductwork at all. Many Seattle Craftsman homes are ideal candidates for this approach.
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 Seattle Customers Say
"Thermostat and a weak blower. Fixed both in one visit, explained the guarantee, and didn't leave a mess. I've already recommended them to my neighbor."
- Natalie Esposito"Honest to a fault. Two companies told me I needed a whole new unit. Coldharbour said mine had years left and just needed a cleaning and a part. Saved me thousands."
- Marcus Reilly"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