Locally-owned since 1977 • Licensed, bonded and insured in Washington (WA Contractor Reg. #HOMECCA785BD) • WA Electrical Contractor Lic. #HOMECCA782DC • NATE-certified technicians • Carrier Factory Authorized Dealer • Mitsubishi Electric Diamond Dealer • Lennox Premier Dealer
Furnace repair in Tukwila: the short answer
Tukwila homes and businesses get furnace repair from our Redmond branch, whether the unit burns gas, oil or propane or runs on electricity. Plan on a $119 dispatch fee for the repair visit. The diagnostic is listed apart from that: $72 standard or $130 deeper. An upfront price comes before any work, and a carbon monoxide check wraps up each gas repair before we go. After hours, qualifying emergencies have a $330 after-hours dispatch fee instead of the $119.
Our trucks are fully stocked, so most repairs can be handled on the spot. More on how we work: furnace repair. Heat pump or ductless system? See heat pump repair in Tukwila.
Gas odor in a Tukwila home? Step outside right away. Next, call 911 and Puget Sound Energy, Tukwila's natural gas supplier, at 1-888-225-5773. When it is safe, give us a call. (PSE natural gas safety; what to do if you smell gas.)
What usually goes wrong with a Tukwila furnace
It won't light, or it lights and shuts off
The usual suspects are the ignitor, a dirty flame sensor, the pressure switch, the draft inducer motor, the gas valve or the control board. Most furnaces flash a code on a small light inside the cabinet that points to which one.
It overheats and trips
A dirty filter, closed or blocked registers, a weak blower motor or capacitor, or a limit switch that keeps tripping the furnace off.
Water around the furnace
High-efficiency furnaces drain condensate through a trap, line and sometimes a pump. In garages and crawlspaces these clog, crack or freeze, and the furnace shuts down.
Venting and combustion
A blocked flue, soot, a yellow or lazy flame, or a carbon monoxide alarm. Leave the house and call 911 and PSE first.
Electric, oil and propane furnaces
On oil furnaces: cad cells, controllers, filters and nozzles. On electric furnaces: relays, sequencers and elements. Propane furnaces get repaired too.
| Symptom | Likely cause | What to do now |
|---|---|---|
| Furnace sat in standing water | Wet controls, motors or burners | Don't turn it on; book a repair visit so a technician checks it first |
| Code light flashing, furnace shuts down | Flame sensor, pressure switch or inducer | Note the flashes and book a visit |
| Lights, then goes out within seconds | Dirty flame sensor or weak flame signal | Book a visit |
| Runs but blows cool air | Lockout, tripped limit or thermostat fan on | Look at the thermostat and filter before calling |
| Water on the floor by the furnace | Condensate trap, line or pump | Power it off and schedule us |
| CO alarm or soot | Combustion or venting problem | Leave, call 911 and PSE |
Valley floor or hillside: Tukwila homes and their furnaces
Tukwila has homes on the damp valley floor near the Duwamish and Green rivers, older houses on the hills, and many townhomes, condos and rentals. Furnaces sit in garages, crawlspaces and closets, where water, dust and tight access all change how a repair goes. Tell us where the furnace is when you book, so the technician comes ready for a closet, attic or garage unit.
Rentals, townhomes and businesses
Tenants: if you are covering the repair, book it yourself. If the landlord is, share their details and we will contact them. Tukwila businesses can book furnace repair too.
A few things to check first
- The thermostat reads HEAT and is set warmer than the room.
- Furnace switch and breaker on.
- Filter clean.
- Furnace door panel closed tight.
- Condensate line not overflowing or frozen.
- If it was in standing water, leave it off.
Tukwila furnace repair: what you will pay
| Service | Price |
|---|---|
| Dispatch fee (repair visit) | $119 |
| Standard diagnostic | $72 |
| Deeper diagnostic | $130 |
| After-hours dispatch, qualifying emergencies | $330, instead of the $119 |
| Furnace ignitor replacement | $353 to $821 |
| Thermostat replacement | $299 to $1,840 |
| Furnace tune-up | $230, or $180 for Home Comfort Club members |
| Oil furnace tune-up | $336, or $288 for members |
Prices as of November 2026. Dispatch and diagnostic fees are listed separately and are not added together into one price. More detail: what furnace repairs cost.
Nothing changes on your furnace until you accept the upfront repair price your technician quotes. A tune-up is not the same visit: it leaves out a carbon monoxide test and a heat exchanger inspection (furnace maintenance).
Regional estimate, not our price: furnace repairs around Seattle average $341 according to Angi, and most homeowners pay between $139 and $544 (Angi, updated Aug 2026, read Nov 2026).
For now, HVAC service or repair is $50 off (special offers). Members of the Home Comfort Club, which is $30 a month, save 10% on repairs. Club pricing excludes dispatch fees, diagnostic time and after-hours charges and is not combinable with other offers.
Financing through Salal Credit Union or Synchrony starts at $179/month* (financing).
*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.
Get an estimateA comfort advisor will call you to set up your visit.
Tukwila furnace quit after business hours?
Our heating technicians work during business hours and are available after hours for qualifying HVAC emergencies, such as no heat in cold weather or a furnace giving off burning or electrical smells. After hours, qualifying emergencies have a $330 after-hours dispatch fee instead of the $119, any day including weekends, except holidays when we are closed (after-hours furnace repair).
Fix or replace a furnace in Tukwila?
Fix it when the furnace is younger and one part has failed. Price a replacement when it is older, the same faults return, or a single repair costs a large share of a new system. Our technician gives you both options with upfront prices, and replacement estimates are free. See furnace replacement in Tukwila, or compare a heat pump for your Tukwila home. Repairs do not get utility rebates.
Tukwila utilities and permits
| Need | Who | Note |
|---|---|---|
| Natural gas, and gas leaks | Puget Sound Energy | 1-888-225-5773 |
| Electricity | Seattle City Light or Puget Sound Energy, each in its own part of the city | Your bill shows which one |
| Mechanical permits | City of Tukwila Permit Center | Residential mechanical permits are issued over the counter |
| Electrical permits | City of Tukwila (it issues its own) | lni.wa.gov list |
Under Tukwila's permit rules, swapping a minor part is exempt as long as it does not change the equipment's approval or make it unsafe, so most repairs skip the permit. A full furnace replacement needs one, and we pull the required permits on every installation (City of Tukwila Permit Center; Tukwila Utilities Element; L&I city electrical permits).
What a Tukwila furnace repair visit looks like
- Call (425) 645-0404 or book online. Tell us the furnace type, its age, where it sits and what it is doing.
- We send a NATE-certified technician out of Redmond in a stocked truck ($119 dispatch).
- The technician reads any code, tests the parts and finds the cause ($72 standard or $130 deeper diagnostic).
- You get the repair price up front and decide before any work starts.
- Most repairs are finished on the spot.
- After a gas repair, we run a full heating cycle and a carbon monoxide check.
A recent Tukwila furnace repair
In early November 2026 a Tukwila homeowner's gas furnace kept shutting down and restarting. The control board was flashing three and four times, and the flame signal was weak. Our technician cleaned the flame sensor, burners, blower compartment and cabinet, tested the blower capacitor and the igniter, checked the condensate drain and ran the furnace through its cycle until it held its flame and heated normally.
Tukwila areas we cover for furnaces
We repair furnaces across Tukwila, including Allentown, Foster, Riverton, Cascade View and Tukwila Hill, and businesses around Southcenter, in ZIP codes 98168, 98178 and 98188.
Nearby: heating in Renton and furnace repair in Seattle, plus SeaTac and Burien. More about the city: Home Comfort Alliance in Tukwila.
Why Tukwila homes and businesses pick us for furnace repair
- Upfront, posted fees: $119 to dispatch, $72 or $130 to diagnose, and a quoted repair price
- Carbon monoxide check after each gas repair
- Carrier Factory Authorized Dealer and Lennox Premier Dealer, and we service all major brands
- NATE-certified technicians from our Redmond branch
- Licensed, bonded and insured in Washington (WA Contractor Reg. #HOMECCA785BD; WA Electrical Contractor Lic. #HOMECCA782DC)
- BBB Accredited Business since 2002; Best Pick Reports Best Pick 2025 and 2026
- Locally owned since 1977
Tukwila furnace repair FAQ
Who repairs furnaces in Tukwila?
Call Home Comfort Alliance at (425) 645-0404. Our Redmond-branch technicians repair gas, electric, oil and propane furnaces in Tukwila homes and businesses. Our phones are answered and bookings are accepted 24/7.
What is the cost of a Tukwila furnace repair visit?
Dispatch is $119. Diagnostics are $72 (standard) or $130 (deeper). You see an upfront price before any work. Ignitor replacement, for example, runs $353 to $821.
Can I get furnace repair after hours in Tukwila?
Yes, for qualifying heating emergencies such as no heat in cold weather. After hours, qualifying emergencies have a $330 after-hours dispatch fee instead of the $119.
I smell gas in my Tukwila home. What should I do?
Get out of the house first. From outside, call 911 and then Puget Sound Energy at 1-888-225-5773. When it is safe, call us for the furnace repair.
My furnace sat in standing water. Can I turn it on?
No. Leave it off and book a repair visit so a technician can check it before it runs again.
Will a Tukwila furnace repair need a permit?
Most of the time, no. Under Tukwila's rules, swapping a minor part that does not change the equipment's approval or make it unsafe is exempt. A furnace replacement needs a permit, and we pull the required permits on every installation.
Do you repair furnaces in rentals, townhomes and businesses?
Yes. Tenants: if you are covering the repair, book it yourself. If the landlord is, share their details and we will contact them. Tukwila businesses can book furnace repair too.
Is carbon monoxide checked on a furnace repair?
Yes. A carbon monoxide check closes out every gas repair before we leave. Keep in mind a tune-up does not include a carbon monoxide test or a heat exchanger inspection.
Sources: PSE natural gas safety; Tukwila Utilities Element (Dec 2024); City of Tukwila Permit Center; L&I city electrical permits; Angi, Seattle furnace repair cost; all read November 2026.
More Tukwila services
Why Choose Home Comfort Alliance in Tukwila?
Your Comfort is Our 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.
Schedule a Tukwila furnace repair
Tell us what your furnace is doing and our Redmond branch will schedule your visit.
Get an estimate
We will call you to set up the visit.