HVAC Repair in Seattle-Tacoma
Heating and cooling repair for furnaces, heat pumps, air conditioners and ductless systems across Seattle-Tacoma, with 24/7 emergency HVAC service 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
HVAC repair from Home Comfort Alliance
Home Comfort Alliance provides HVAC repair for heating and cooling systems in homes and businesses across Seattle-Tacoma: gas and electric furnaces, heat pumps, central air conditioners and ductless mini-splits. Technicians come out from our Redmond, Everett, Bremerton and Sumner branches. Every repair starts with a diagnosis by a NATE-certified technician and a written, upfront price before any work begins.
A repair visit has a $119 dispatch fee. Our phones are answered 24/7, and our heating and cooling technicians work after hours, with a $330 after-hours fee that we tell you before anyone is sent. Call (425) 645-0404 or use the form at the end of this page.
Smell gas or hear a carbon monoxide alarm? Stop troubleshooting and get everyone outside. From outside, call 911 or your gas utility: Puget Sound Energy at 1-888-225-5773 or Cascade Natural Gas at 888-522-1130. Then see our 24/7 emergency heating and cooling page.
Signs your heating or cooling needs repair
Book a repair visit if your system shows any of these:
- No heat or no cooling, or air from the registers that never gets warm or cold.
- Short cycling: the system starts, runs a few minutes, shuts off and starts again.
- New noises such as squealing, grinding, banging when the burners light, or a buzzing outdoor unit.
- A burning, electrical or musty smell from the vents.
- Rooms that stay too hot or too cold while the rest of the house is fine.
- Higher energy bills with no change in how you use the system.
- Ice on the outdoor unit that stays for hours, or a heat pump that never seems to defrost.
- Water around the furnace or indoor unit, often a blocked condensate drain.
Not sure whether it can wait for morning? Our emergency service page has a simple table for that.
Which system do you have? Find the right repair
Each system fails in its own ways. Find yours below for the most common faults and a full repair guide.
| Your system | What usually fails | Repair guide | If it can't wait |
|---|---|---|---|
| Gas furnace | Ignitor, flame sensor, inducer motor, pressure switch, control board, blower motor | Furnace repair | Emergency furnace repair |
| Electric furnace | Heating elements, sequencers, relays, breakers, blower motor | Furnace repair | Emergency furnace repair |
| Ducted heat pump | Defrost controls, reversing valve, capacitor, outdoor fan motor, refrigerant leaks, auxiliary heat | Heat pump repair | Emergency heat pump repair |
| Ductless mini-split | Dirty filters and coils, drain line clogs, sensors, error codes, refrigerant leaks | See ductless repair below | Emergency heat pump repair |
| Central air conditioner | Capacitor, contactor, condenser fan motor, frozen coil, refrigerant leaks, clogged drain | AC repair | Emergency AC repair |
| Dual fuel (heat pump with gas furnace backup) | Either side, plus the controls that switch between them | Heat pump repair and furnace repair | Call (425) 645-0404 |
What can you check before you call?
These five checks fix a surprising number of service calls. If none of them work, leave the rest to a technician.
- Thermostat set to HEAT or COOL, a few degrees past room temperature, with fresh batteries.
- Breakers for the furnace or air handler and the outdoor unit switched on, plus the service switch near the furnace.
- A clean air filter. A clogged filter can make a furnace overheat and a heat pump or AC freeze up.
- Supply and return vents open and not blocked by furniture or rugs.
- The outdoor unit clear of leaves, snow and anything stacked against it.
Don't open the furnace cabinet, the electrical panel or any gas line. A breaker that trips again after one reset needs a technician.
Ductless mini-split repair
Ductless systems are heat pumps, so most faults are the same: a unit that won't heat or cool, a blinking light or error code, water dripping from the indoor head, or ice on the outdoor unit. Start by cleaning the washable filters behind the front panel of each indoor head, and note any error code on the unit or remote before you call. Our technicians repair all major ductless brands, and Home Comfort Alliance is a Mitsubishi Electric Diamond Dealer. More on ductless heating and cooling.
What does HVAC repair cost in Seattle-Tacoma?
HVAC repair in Seattle averages $389, with most repairs between $111 and $3,333, according to Angi's Seattle cost data (a regional estimate updated May 2026, not our price). Sensors, capacitors and thermostats sit near the bottom of that range; compressors, coils and blower motors cost the most. At Home Comfort Alliance, a repair visit starts with a $119 dispatch fee and a diagnostic, and you approve a written price before any repair.
Home Comfort Alliance repair fees
| Item | Price |
|---|---|
| Dispatch (trip) fee | $119 |
| Standard diagnostic | $72 |
| Deeper diagnostic (when needed) | $130 |
| After-hours fee (nights, weekends) | $330 |
| Ignitor replacement | $353 to $821 |
| Thermostat replacement | $299 to $1,840 |
| Tune-up (furnace, heat pump or AC) | $230 ($180 for Home Comfort Club members) |
Prices as of September 2026. Each fee is its own line; the two diagnostic fees are alternatives, not added together.
Typical Seattle repair prices (regional estimate)
| Repair (Angi, Seattle, May 2026) | Range |
|---|---|
| Diagnostic or service call (industry range) | $100 to $200 |
| Capacitor | $110 to $280 |
| Circuit board | $220 to $650 |
| Refrigerant leak repair | $280 to $1,670 |
| Blower or fan motor | $160 to $2,160 |
| Coil replacement | $550 to $2,500 |
| Compressor | $900 to $2,900 |
Current offer: $50 off HVAC service or repair (special offers).
Financing a bigger repair
Larger repairs can be financed through Salal Credit Union or Synchrony, with plans from $179/month* and 0% interest options for qualifying customers (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.
Book an HVAC repairYou approve a written, upfront price before any work begins.
Should you repair or replace?
Repair is usually the right call for a system under about 15 years old with a first or second fault. Lean toward replacing when two or more of these are true:
- The system is 15 to 20 years old or more.
- Age multiplied by the repair price is more than $5,000. This "$5,000 rule" is a rule of thumb: a 16-year-old heat pump with a $400 repair scores $6,400.
- The compressor has failed, or a furnace heat exchanger is cracked.
- The system uses R-22 refrigerant, which is no longer made, so recharging it gets expensive.
- You've paid for repairs more than once in the last two years.
Our technician will tell you plainly which way they'd go. Replacement estimates are free, and you can get a price range in about 30 seconds with our instant HVAC quote. See HVAC replacement and our guide to furnace repair or replacement.
If you replace with a heat pump, utility incentives can help. Tacoma Power, for example, pays $1,000 for a qualifying air-source or ductless heat pump and $2,000 for a variable-speed heat pump that replaces an electric forced-air furnace (as of October 2026, participating contractor required; Home Comfort Alliance is an approved Tacoma Power contractor). Puget Sound Energy and Seattle City Light have their own programs; see the heat pump cost guide for amounts. The federal 25C tax credit ended on December 31, 2025.
Do HVAC repairs need a permit?
Most repairs, such as replacing a capacitor, motor, ignitor or control board, don't need a permit. Replacing equipment, or changing gas lines or wiring, usually does. When a job needs one, we pull it from the city or, for electrical work in many cities, from Washington L&I or the local electrical authority. In Seattle that's the Seattle Department of Construction and Inspections.
How an HVAC repair visit works
- Call or book online. Phones are answered 24/7. Tell us what the system is doing.
- Dispatch. A technician comes from your nearest branch, the same day when possible.
- Diagnosis. The technician tests the system, its safety controls and, on gas furnaces, the venting.
- Written price. You get an upfront price, and nothing is replaced until you say yes.
- Repair and test. We run a full cycle and show you what was wrong and what we did.
How to choose an HVAC repair company in Seattle-Tacoma
Whoever you call, check these six things first:
| Check | Why it matters | Home Comfort Alliance |
|---|---|---|
| A Washington contractor registration you can look up | Look it up on L&I's Verify a Contractor tool | WA Contractor Reg. #HOMECCA785BD; WA Electrical Contractor Lic. #HOMECCA782DC |
| A written price before work | No surprises on the invoice | Upfront, transparent pricing before any work begins |
| Published fees | You know the cost of the visit | $119 dispatch; $72 or $130 diagnostic; $330 after hours |
| Certified technicians | Training on current equipment | NATE-certified technicians |
| A stated warranty | Know what's covered | 1-year labor warranty on installations; extended labor coverage on repairs for Home Comfort Club members, up to 5 years from installation |
| After-hours heating and cooling | Furnaces fail at night | 24/7 emergency HVAC service in every city we serve |
A recent repair: a noisy furnace in West Seattle
In late September 2026, a West Seattle homeowner shut off their gas furnace after it started making a high-pitched noise. Our technician found worn bearings in the draft inducer motor, which also explained the slow starts, and an ignitor that was starting to fail. With the homeowner's approval, he replaced the inducer motor, its capacitor and the ignitor, then ran the furnace through full heating cycles before leaving.
What you get with Home Comfort Alliance
- NATE-certified technicians who repair all major brands
- Mitsubishi Electric Diamond Dealer, Carrier Factory Authorized Dealer, Lennox Premier Dealer and Quilt dealer
- Upfront, transparent pricing before any work begins
- 24/7 emergency HVAC 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; BBB Accredited Business since 2002; Best Pick 2025 and 2026; locally owned since 1977
- Repairs for homes and businesses
To keep the next repair away, book a tune-up once a year.
Where we repair heating and cooling
Four branches cover the Puget Sound area. Office hours are Monday to Friday, 8 AM to 5 PM, and heating and cooling technicians are on call 24/7.
| Branch | Address | Areas |
|---|---|---|
| Sumner (headquarters) | 1524 45th St E, Suite 102, Sumner | Tacoma, Puyallup, Sumner, Auburn, Kent, Federal Way and Pierce County |
| Redmond | 9680 153rd Ave NE, Redmond | Seattle, Bellevue, Redmond, Kirkland and the Eastside |
| Everett | 3409 Everett Ave, Everett | Everett, Lynnwood and Snohomish County |
| Bremerton | 5373 Auto Center Way, Suite 205, Bremerton | Bremerton, Silverdale, Port Orchard and Kitsap County |
City repair pages: Seattle furnace repair; Tacoma furnace repair and heat pump repair; Puyallup furnace repair and AC repair; Sumner furnace repair, heat pump repair and AC repair; Bremerton furnace repair, heat pump repair and AC repair. Or see all service areas.
Your electric utility
| Area | Electricity |
|---|---|
| Seattle | Seattle City Light |
| Tacoma, Fife and nearby | Tacoma Power |
| Snohomish County | Snohomish County PUD |
| Eastside, south King County and Kitsap County | Puget Sound Energy |
Smell gas? Call your gas utility from outside the house: Puget Sound Energy 1-888-225-5773 or Cascade Natural Gas 888-522-1130.
HVAC repair FAQ
How much does HVAC repair cost in Seattle?
Angi puts the average Seattle HVAC repair at $389, with most repairs between $111 and $3,333 (regional estimate, May 2026). At Home Comfort Alliance, a repair visit has a $119 dispatch fee plus a diagnostic, and you get a written price for the repair before any work begins.
Do you charge a diagnostic or trip fee?
Yes. The dispatch fee is $119. The standard diagnostic is $72, and a deeper diagnostic, when a fault is harder to find, is $130. They are listed separately, and the two diagnostics are alternatives, not added together.
Do you offer emergency HVAC repair at night and on weekends?
Yes, for heating and cooling. Our phones are answered 24/7 and our HVAC technicians work after hours in every city we serve. The after-hours fee is $330, stated before a technician is sent. Plumbing and electrical calls can be booked 24/7 and are worked Monday to Friday, 8 AM to 5 PM.
How quickly can you come out?
Same-day service is available when possible. Call (425) 645-0404 early in the day for the best chance of a same-day visit, or any time at night for a heating or cooling emergency.
Should I repair or replace my furnace, heat pump or AC?
Repair usually makes sense for a system under about 15 years old. Consider replacing when the age times the repair price is over $5,000, the compressor or heat exchanger has failed, the system uses R-22 refrigerant, or you have paid for several repairs recently. Replacement estimates are free.
Is a heat pump worth repairing?
Usually, if it is under about 12 to 15 years old and the problem is a part such as a capacitor, fan motor, sensor or defrost control. A failed compressor on an older heat pump is often the point where replacement makes more sense. See our heat pump repair guide for the common faults.
Are your HVAC repairs guaranteed?
Installations carry a 1-year labor warranty, and we support the manufacturer's warranty on covered parts. Home Comfort Club members get extended labor coverage on repairs, up to 5 years from installation.
What brands do you repair?
We repair all major heating and cooling brands. Home Comfort Alliance is a Mitsubishi Electric Diamond Dealer, a Carrier Factory Authorized Dealer, a Lennox Premier Dealer and a Quilt dealer.
Are your technicians licensed and certified?
Yes. Home Comfort Alliance is licensed, bonded and insured in Washington (WA Contractor Reg. #HOMECCA785BD; WA Electrical Contractor Lic. #HOMECCA782DC), and our technicians are NATE-certified.
Which areas do you serve for HVAC repair?
We repair heating and cooling systems across King, Pierce, Snohomish and Kitsap counties from our Redmond, Everett, Bremerton and Sumner branches, including Seattle, Bellevue, Tacoma, Puyallup, Everett and Bremerton. See all service areas for your city.
Do I need a permit for an HVAC repair?
Most repairs do not. Replacing equipment or changing gas lines or wiring usually does, and when a permit is needed we pull it from the city or the electrical authority.
Do you repair commercial heating and cooling?
Yes. We repair heating and cooling for businesses as well as homes, including commercial furnaces.
How often should I have my system serviced to avoid repairs?
Once a year for each system: heating in the fall and cooling in the spring, as ENERGY STAR recommends. A tune-up is $230, or $180 for Home Comfort Club members.
Sources (checked October 7, 2026 unless noted): Angi, HVAC repair cost in Seattle (updated May 5, 2026); Tacoma Power, heat pump incentives; ENERGY STAR, maintenance checklist (October 6, 2026); Puget Sound Energy, detect a gas leak. Home Comfort Alliance prices as of September 2026.
Why Choose Home Comfort Alliance for HVAC Repair?
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 an HVAC repair
Tell us what your heating or cooling system is doing. A NATE-certified technician from your nearest branch will find the problem and give you a written, upfront price before any work begins.
Request an HVAC repair
Our team will call you to set up your visit. For no heat or no cooling after hours, call (425) 645-0404.