HVAC Repair Seattle: $190 to $1,900 + SDCI Permits (2026)
HVAC repair in Seattle costs $190 to $1,900, the range ConsumerAffairs reported there in April 2026, with a $95 to $190 diagnostic fee.
Any furnace replacement needs an SDCI permit, and heat pumps need a refrigeration permit from a licensed refrigeration contractor.
Common reasons people call
Key numbers
- $190 to $1,900HVAC repair, SeattleConsumerAffairs, Apr 2026
- $95 to $190Diagnostic fee, SeattleConsumerAffairs, Apr 2026
- $130 to $380Furnace ignitor or flame sensor, SeattleConsumerAffairs, Apr 2026
Furnace quit or the heat pump blowing cold in Seattle? Call the heating and AC line and say what the system burns or runs on.
| Job or rate | Published cost | Source |
|---|---|---|
| HVAC repair, Seattle | $190 to $1,900 | ConsumerAffairs, Apr 2026 |
| Diagnostic fee, Seattle | $95 to $190 | ConsumerAffairs, Apr 2026 |
| Furnace ignitor or flame sensor, Seattle | $130 to $380 | ConsumerAffairs, Apr 2026 |
| Full system replacement, Seattle | $7,500 to $15,000 | ConsumerAffairs, Apr 2026 |
| Furnace repair, national | Average $318; most $133 to $505 | HomeAdvisor, Jun 2026 |
| AC repair, national | $417 average; typical $172 to $664 | HomeAdvisor, Jun 2026 |
| City Light heat pump discount | $300, $400 or $600 by efficiency | Seattle City Light, Oct 2026 |
| Seattle Clean Heat, oil furnace to heat pump | $2,000 instant rebate | Seattle City Light, Oct 2026 |
Seattle rows are local figures; national rows are labeled.
Do this now: no heat or no cooling in Seattle
- Gas smell or a carbon monoxide alarm: get everyone out and call 911 or Puget Sound Energy from outside. CPSC says not to look for the source.
- Check the thermostat mode and setting, the system's switch and the breaker. Do not keep resetting a breaker that trips.
- Change a dirty filter. Bryant says it can shut a furnace down at the high-limit switch.
- Oil furnace: check the tank. Carrier lists an empty fuel supply as a cause of cold air.
- Freezing night: open sink cabinets and drip cold water on exposed pipes (Red Cross). See frozen pipes.
- In a heat wave with no cooling, CDC says fans do not help above 90 F indoors; go somewhere with air conditioning.
HVAC repair in Seattle covers gas, oil and electric furnaces, heat pumps, ductless systems and AC, under SDCI furnace and refrigeration permits. ConsumerAffairs puts Seattle repairs at $190 to $1,900.
Is it an emergency? Seattle's cold nights and rare heat
No heat in a freeze, a gas smell, a CO alarm or a furnace cycling every few minutes is an emergency; Sea-Tac averages 25.2 nights a year at or below 32 F, NOAA's 1991 to 2020 normals show. Heat is rare, at 3.8 days a year of 90 F or more, but a failed heat pump on one of those days matters for people CDC lists as higher risk: adults 65 and older, infants and young children, and people with heart disease. Anything else can wait for a weekday visit, when the $95 to $190 Seattle diagnostic fee ConsumerAffairs reports is the main cost.
Heating and cooling repairs in Seattle
- Furnace repair in Seattle: ignitors and flame sensors run $130 to $380, ConsumerAffairs says, and any furnace replacement needs an SDCI permit.
- Heat pump repair: Seattle requires a refrigeration permit for any split system, pulled only by a licensed refrigeration contractor.
- AC repair: HomeAdvisor's national range is $172 to $664.
Seattle HVAC permits and licenses
"You need a permit for any furnace replacement or alteration," Seattle's Department of Construction and Inspections says, and homeowners can apply for it themselves; SDCI's line is (206) 684-8950. Heat pumps and AC are different: Seattle requires a refrigeration permit for any split system, and only a licensed refrigeration contractor can get one. Gas piping mechanics are licensed separately by the city. Check the company's Washington contractor registration on L&I's Verify tool, which also shows bond lawsuits and safety citations.
Seattle rebates and free upgrades in 2026
- Seattle City Light air-source heat pumps under 5.4 tons: instant contractor discount of $300 at HSPF2 8.1 or better, $400 at 8.5 and $600 at 9.5.
- Seattle Clean Heat: $2,000 instant rebate through a participating contractor to convert an oil furnace to a heat pump; free for income-eligible households through the Office of Housing.
- Smart thermostats for electric baseboard homes: $50 each, up to 5, through Dec 31, 2026.
- HomeWise Weatherization: free furnace repair or replacement and ductless heat pumps for electrically heated homes, income-qualified. (206) 684-0244.
- Federal: none in 2026; the IRS says 25C ended for property placed in service after December 31, 2025.
Compare heat pump installation cost and furnace replacement cost before deciding on a repair.
| What | Seattle | Source |
|---|---|---|
| Furnace permit | Any replacement or alteration; homeowners can apply. (206) 684-8950 | Seattle SDCI |
| Heat pump or AC permit | Refrigeration permit, licensed refrigeration contractor only | Seattle SDCI |
| Local repair price | $190 to $1,900; diagnostic $95 to $190 | ConsumerAffairs |
| Rebates | Heat pump $300 to $600; oil conversion $2,000 | Seattle City Light |
| Free repair | HomeWise, income-qualified | Seattle Office of Housing |
| Climate | 25.2 nights at or below 32 F; 3.8 days at or above 90 F | NOAA normals, Sea-Tac |
| Housing age | Median year built 1976 | U.S. Census Bureau, ACS 2020 to 2024 |
Heating and cooling facts for Seattle, from the official city, county, state, utility, Census and NOAA pages listed under Sources.
Questions to ask a Seattle HVAC company
- What is your L&I registration number, and do you hold a Seattle refrigeration contractor license for heat pump work?
- Will you pull the SDCI furnace or refrigeration permit?
- What is the diagnostic fee? ConsumerAffairs lists $95 to $190 in Seattle.
- Which City Light discount or Clean Heat rebate applies, and will you take it off the invoice?
- Can I see proof of insurance and a written price before work starts?
Old oil furnace or a heat pump that ices up? Call the heating and AC line and ask for a repair and a replacement price.
More Seattle guides
Frozen or burst pipes: plumber in Seattle. Circuits for a heat pump: electrician in Seattle. Other cities: HVAC repair in Portland and HVAC repair in Denver. National guides: HVAC repair and home repair costs. Calls go to an independent company that serves your area and takes this kind of job (how calls work).
More help in Seattle
- Plumbers in Seattle
- Emergency plumber in Seattle
- Water heater repair in Seattle
- Drain cleaning in Seattle
- Sewer line repair in Seattle
- Furnace repair in Seattle
- Water damage restoration in Seattle
- Mold removal in Seattle
- Roof repair in Seattle
- Electrical repair in Seattle
- Garage door repair in Seattle
- Tree removal in Seattle
- Window replacement in Seattle
HVAC repair in other cities
Questions people ask
How much does HVAC repair cost in Seattle?
ConsumerAffairs puts Seattle HVAC repairs at $190 to $1,900, the diagnostic fee at $95 to $190 and a full system at $7,500 to $15,000 (April 2026).
Do I need a permit to replace a furnace or heat pump in Seattle?
Yes. SDCI requires a permit for any furnace replacement or alteration, and a refrigeration permit for any split system, which only a licensed refrigeration contractor can get.
What heat pump rebates does Seattle City Light offer?
An instant contractor discount of $300, $400 or $600 by efficiency on air-source heat pumps under 5.4 tons, and $2,000 through Seattle Clean Heat to replace an oil furnace.
Is there free furnace repair in Seattle?
Income-qualified homes can get furnace repair or replacement through HomeWise. Call the Office of Housing at (206) 684-0244.
How do I check an HVAC contractor in Washington?
Use L&I's Verify tool for contractor registration, bond lawsuits and safety citations, and ask for the Seattle refrigeration license for heat pump work.
In Seattle with no heat or a heat pump blowing cold? Call the heating and AC line and ask whether the company pulls SDCI permits.
- 1Call the line
- 2It rings a local company
- 3They give you the price
Before you book
- License numberAsk for it, then check it with the state board.
- Written priceGet the visit fee and the job price in writing before work starts.
- Proof of insuranceAsk for the certificate, especially for roof, tree and electrical work.
Sources (18)
- ConsumerAffairs: 14 Best HVAC companies in Seattle, WA of 2026 (2026-04-28)
- HomeAdvisor: How much does furnace repair cost in 2026? (2026-06-20)
- HomeAdvisor: How Much Does AC Repair Cost? (2026-06-17)
- Seattle SDCI: Furnace and refrigeration permits (checked 2026-10-11)
- Seattle SDCI: Gas piping licensing (checked 2026-10-11)
- Washington L&I: Verify a contractor, tradesperson or business (checked 2026-10-11)
- Seattle City Light: Heating and cooling your home (checked 2026-10-11)
- City of Seattle: Weatherization (HomeWise) (checked 2026-10-11)
- Seattle Office of Housing: Home repair (checked 2026-10-11)
- NOAA NCEI: U.S. Climate Normals 1991 to 2020, Seattle-Tacoma International and other stations (checked 2026-10-11)
- U.S. Census Bureau: ACS 2020 to 2024, Table B25035 Median year structure built, Seattle city (checked 2026-10-11)
- U.S. Census Bureau: ACS 2020 to 2024, Table B25034 Year structure built, Seattle city (checked 2026-10-11)
- CPSC: Carbon monoxide fact sheet (checked 2026-10-11)
- Carrier: Reasons your furnace is blowing cold air (checked 2026-10-11)
- Bryant: Furnace blowing cold air? Causes and fixes (checked 2026-10-11)
- American Red Cross: Frozen Pipes (checked 2026-10-11)
- CDC: About Heat and Your Health (2026-07-20)
- IRS: FAQs for modification of sections 25C, 25D and others under Public Law 119-21 (2025-08-21)
Call the heating and AC line in Seattle
Have the address, the system type (furnace, boiler, heat pump or central air), the brand and age if you know them, and what it is doing. The company will quote its service call fee before anyone is sent.
Free call to an independent company in your area that takes this kind of work.