Furnace Repair in Seattle, WA
Gas and electric furnace repair for Seattle homes from our Redmond team: 24/7 emergency heating service, same-day visits when possible, and an upfront price before any work begins.
Locally-owned since 1977 • Licensed, bonded and insured in Washington (WA Contractor Reg. #HOMECCA785BD) • NATE-certified technicians • Carrier Factory Authorized Dealer • Mitsubishi Electric Diamond Dealer
Furnace repair in Seattle, at a glance
Home Comfort Alliance repairs gas and electric furnaces in Seattle homes from its Redmond branch. Our phones are answered 24/7, heating technicians work after hours for no-heat emergencies, and same-day service is available when possible. A NATE-certified technician finds the fault and gives you an upfront price before any work begins. Repair visits carry a $119 dispatch fee, and the standard diagnostic is $72.
Call (425) 645-0404 or use the form at the end of this page.
Smell gas in the house? Don't touch light switches or the thermostat. Get everyone outside, then call 911 or Puget Sound Energy at 1-888-225-5773 from outside (PSE gas leak steps). Call us once the utility says the home is safe.
Is your furnace telling you it needs a repair?
Book a repair visit if you notice any of these in your Seattle home:
- No heat at all, or the blower runs but the air from the registers is cold.
- The furnace keeps turning off after a few minutes and starting again (short cycling).
- It tries to light and gives up, which usually points to the ignitor, the flame sensor or, on older furnaces, the pilot light.
- The thermostat doesn't respond, its screen is blank, or the house never reaches the set temperature.
- New noises: squealing or grinding from the blower motor, a bang when the burners light, or rattling panels.
- An electric furnace trips its breaker or heats only part of the house.
Four things to check before you call
- Thermostat on HEAT, set above room temperature, with fresh batteries.
- Furnace breaker on, and the service switch near the furnace (it looks like a light switch) turned on.
- A clean filter. A clogged one makes many furnaces overheat and shut down.
- The furnace's front panel closed tight, since an open panel keeps a safety switch off.
If none of those bring the heat back, leave the rest to a technician. For a deeper list of symptoms, see our furnace repair guide.
Gas, electric or oil: what we fix in Seattle homes
Seattle houses heat with a mix of systems: natural gas furnaces on Puget Sound Energy service, electric forced-air furnaces on Seattle City Light, and in older homes, oil furnaces. The parts that fail are different for each.
| Furnace type | Parts we replace most | Good to know |
|---|---|---|
| Natural gas (PSE) | Ignitor, flame sensor, pilot assembly on older units, draft inducer motor, pressure switch, gas valve, control board, blower motor | We check venting and the heat exchanger on every gas repair, because a crack can leak carbon monoxide |
| Electric forced air (Seattle City Light) | Heating elements, sequencers and relays, blower motor, transformer, breakers | A breaker that trips again after a reset needs a technician, not another reset |
| Oil | We assess the system and talk through repair or a switch | Seattle's Clean Heat Program pays rebates to switch from oil to a heat pump; see heat pumps in Seattle |
We service all major furnace brands, Lennox included, and Home Comfort Alliance is a Carrier Factory Authorized Dealer.
No heat tonight? 24/7 emergency furnace repair in Seattle
Our heating technicians work after hours, so a Seattle furnace that quits at night or on a weekend can be looked at the same night. Call (425) 645-0404 at any hour. The after-hours fee is $330, and we tell you that up front, before a technician is sent.
While you wait: close doors to rooms you aren't using, keep everyone in one warm room, and use only space heaters made for indoor use, plugged straight into a wall outlet. Never heat the house with a gas oven, a grill or a camp stove. More on emergency furnace repair, including when a problem can safely wait for morning.
How much does furnace repair cost in Seattle?
A typical Seattle furnace repair runs $139 to $544, with an average of $341, according to Angi's Seattle cost data (a regional estimate from August 2026, not our price). Sensors and ignitors sit near the bottom of that range; blower motors, inducer motors and heat exchangers can cost far more.
| Seattle furnace repair (Angi, Aug 2026) | Range |
|---|---|
| Typical repair | $139 to $544 (average $341) |
| Flame sensor | $160 to $270 |
| Ignitor | $160 to $540 |
| Control board | $220 to $650 |
| Blower motor | $160 to $2,160 |
Our Seattle furnace repair prices
| Home Comfort Alliance item | Price |
|---|---|
| Dispatch (trip) fee | $119 |
| Standard diagnostic | $72 |
| Deeper diagnostic (when needed) | $130 |
| After-hours fee | $330 |
| Ignitor replacement | $353 to $821 |
| Thermostat replacement | $299 to $1,840 |
| Furnace tune-up | $230 ($180 for Home Comfort Club members) |
Prices as of September 2026. Each fee is listed on its own line; the two diagnostic fees are alternatives, not added together.
Current offer: $50 off HVAC service or repair (special offers). A larger repair can be financed through Salal Credit Union or Synchrony, with plans from $179/month* and 0% interest options for qualifying customers (financing). To keep the next repair away, book a furnace tune-up.
*Financing through Salal Credit Union or Synchrony, subject to credit approval. Rates, terms and monthly payments depend on the amount financed, the plan and your credit. 0% interest options are available to qualifying customers. See lender for full terms.
Book a furnace repairYou approve a written, upfront price before any work begins.
Fix it or replace it?
Most furnaces under about 15 years old with a first or second repair are worth fixing. Lean toward replacing when two or more of these are true:
- The furnace is 20 to 25 years old or older.
- Age multiplied by the repair price comes to more than $5,000. This "$5,000 rule" is a rule of thumb: a 22-year-old furnace with a $300 repair scores $6,600.
- The heat exchanger is cracked.
- You have paid for repairs more than once in the last couple of years.
Our technician will tell you plainly which way they would go. Replacement estimates are free; see furnace replacement in Seattle. If you are thinking of going electric, Seattle City Light offers instant discounts on qualifying heat pumps, and oil-heated homes can get a Clean Heat rebate. Home Comfort Alliance is an approved Seattle City Light contractor and a participating contractor in the City of Seattle's Clean Heat Program.
How a Seattle furnace repair visit works
- Call or book online. Phones are answered 24/7; tell us what the furnace is doing.
- Dispatch. A heating technician comes out from our Redmond branch, the same day when possible.
- Diagnosis and price. The technician tests the furnace, its safety controls and venting, then gives you a written price before any work.
- Repair, with your approval. Nothing is replaced until you say yes.
- Test and walk-through. We run a full heating cycle and show you what was wrong and what we did.
A recent Seattle furnace repair: Fauntleroy, West Seattle
In late September 2026, a West Seattle homeowner booked a visit online because their gas furnace had started making a high-pitched noise, and they had turned it off. Our technician traced the noise to worn bearings in the draft inducer motor, the fan that pushes exhaust out of the furnace. The same worn motor explained why the furnace had been slow to start. He also found the ignitor beginning to fail.
The homeowner approved a repair to replace the inducer motor, its capacitor and the ignitor, and added a whole-home duct cleaning and a new UV light bulb while we were there. The furnace is a Lennox gas furnace, one of the many brands we repair, and the home is on Puget Sound Energy gas.
What you get with Home Comfort Alliance
- NATE-certified heating technicians who service all major furnace brands
- Upfront, transparent pricing before any work begins
- 24/7 emergency heating service, with the $330 after-hours fee stated before we come out
- Home Comfort Club members (from $15 a month) get priority scheduling, discounted repair rates and extended labor coverage on repairs, up to 5 years from installation (membership plans)
- Licensed, bonded and insured in Washington (WA Contractor Reg. #HOMECCA785BD); BBB Accredited Business since 2002; Best Pick 2025 and 2026
- Commercial furnace repair as well as homes
Where we repair furnaces in Seattle
Our Redmond branch sends heating technicians to homes and businesses in North Seattle (Ballard, Fremont, Wallingford, Green Lake, the University District, Ravenna, Wedgwood, Northgate, Lake City), Central Seattle (Capitol Hill, the Central District, Madison Park, Queen Anne, Magnolia) and West Seattle (Alki, Admiral, Fauntleroy, Delridge), on Puget Sound Energy gas and Seattle City Light power. Home Comfort Alliance has served Puget Sound homes since 1977. Nearby, see all our Seattle services or our other city furnace repair pages for Tacoma, Puyallup, Sumner and Bremerton.
Seattle furnace repair FAQ
How much does furnace repair cost in Seattle?
Angi puts a typical Seattle furnace repair at $139 to $544, with an average of $341 (regional estimate, August 2026). At Home Comfort Alliance, a repair visit has a $119 dispatch fee and a $72 standard diagnostic, and you get a written price for the repair before any work begins.
Do you offer 24-hour emergency furnace repair in Seattle?
Yes. Our phones are answered 24/7 and our heating technicians work after hours, so a furnace that fails at night or on a weekend can be repaired the same night. The after-hours fee is $330, stated before a technician is sent.
Can you repair my furnace the same day?
Same-day service is available when possible. Call (425) 645-0404 early in the day for the best chance of a same-day visit.
Which Seattle neighborhoods do you serve for furnace repair?
Our Redmond branch repairs furnaces in North Seattle (Ballard, Fremont, Wallingford, Green Lake, the University District, Ravenna, Wedgwood, Northgate and Lake City), Central Seattle (Capitol Hill, the Central District, Madison Park, Queen Anne and Magnolia) and West Seattle (Alki, Admiral, Fauntleroy and Delridge). Call (425) 645-0404 to confirm your address.
Who do I call if my furnace stops working in Seattle?
If you smell gas, leave the house and call 911 or Puget Sound Energy at 1-888-225-5773 from outside. For no heat with no gas smell, check the thermostat, breaker and filter, then call a heating contractor such as Home Comfort Alliance at (425) 645-0404.
Do you repair both gas and electric furnaces?
Yes. We repair natural gas furnaces on PSE service and electric forced-air furnaces on Seattle City Light, plus the blowers, controls and thermostats that run them.
Do you repair Lennox furnaces and other brands?
Yes. We service all major furnace brands, including Lennox, and we are a Carrier Factory Authorized Dealer.
Why does my furnace keep turning off?
Short cycling is most often caused by a clogged filter that lets the furnace overheat, a dirty flame sensor that shuts the burners off, a thermostat problem, or a furnace that is too large for the house. Change the filter first; if it keeps happening, book a repair.
Can you fix a furnace ignitor or pilot light?
Yes. Newer gas furnaces light with a hot surface ignitor, and older ones use a standing pilot. Our ignitor replacement price is $353 to $821 (September 2026), and pilot and flame sensor problems are often fixed on the first visit.
Could my thermostat be the problem?
Sometimes. Dead batteries, the wrong mode or a failed thermostat can all look like a broken furnace. Our technician tests the thermostat as part of the diagnosis, and thermostat replacement runs $299 to $1,840 depending on the model.
What does a blower motor repair involve?
The technician checks the motor, its capacitor and its control. A capacitor is a smaller repair; a full motor replacement costs more, and Angi lists Seattle blower motor repairs at $160 to $2,160 (August 2026).
Should I repair or replace a 20 to 25 year old furnace?
Often replace, especially if the repair is large or the heat exchanger is cracked. The $5,000 rule helps: multiply the furnace age by the repair price, and if the result is over $5,000, replacement usually makes more sense. Replacement estimates are free.
What is the most common furnace failure?
On gas furnaces, a failed ignitor or a dirty flame sensor is the most common cause of no heat. On electric furnaces, it is usually a heating element, a sequencer or a tripped breaker.
Sources (checked October 6, 2026): Angi, Seattle furnace repair cost (Aug 2026); Puget Sound Energy, detect a gas leak; Seattle City Light, Heating and Cooling Your Home; City of Seattle, Clean Heat Program. Home Comfort Alliance prices as of September 2026.
Why Choose Home Comfort Alliance in Seattle?
Your Comfort is Our Promise
We promise...
Reliable heating, air conditioning, plumbing and electrical service, all from one trusted company.
To educate and guide you through your options so you’ll find the right solution at the right price.
Knowledgeable and respectful workers who ensure both your own comfort during the installation process, and lasting comfort from your home systems.
Outstanding service, communication, and follow-up, so your home is comfortable now and for years to come.
Book a furnace repair in Seattle
Tell us what your furnace is doing. A heating technician from our Redmond branch will diagnose it and give you a written, upfront price before any work begins.
Request furnace repair
Our team will call you to set up your visit. For no heat after hours, call (425) 645-0404.