Heat Pump Repair in Mount Vernon, WA
Ducted and ductless heat pump repair for Mount Vernon and the Skagit Valley from our Everett team: a $119 dispatch fee, a $72 diagnostic and a written price before any work.
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
Heat pump repair in Mount Vernon, WA, at a glance
Home Comfort Alliance repairs ducted and ductless heat pumps across Mount Vernon, WA and the Skagit Valley, with upfront prices before any work begins. Our Everett team handles Mount Vernon calls, and the Everett branch has a walk-in office at 3409 Everett Ave. A repair visit is a $119 dispatch fee and a $72 standard diagnostic, then a written repair price for you to approve.
Call (425) 645-0404. Our phones are answered and bookings are accepted 24/7, or send the request form below.
Heat pump backed up by a gas furnace? If you smell gas, leave the home first. When everyone is outside, call Cascade Natural Gas at 888-522-1130 or 911 (Cascade gas safety).
Heat pump repair prices in Mount Vernon
No Mount Vernon competitor we checked publishes a heat pump repair fee. We do: two visit fees, then one written repair price.
Our Mount Vernon heat pump prices
| Home Comfort Alliance item | Price |
|---|---|
| Dispatch (trip) fee | $119 |
| Standard diagnostic | $72 |
| Deeper diagnostic (when needed) | $130 |
| After-hours fee (qualifying emergencies) | $330 |
| Heat pump tune-up, per piece of equipment | $230 ($180 for Home Comfort Club members) |
| Thermostat replacement | $299 to $1,840 |
Prices as of October 2026. You are charged one diagnostic fee, not both.
For outside context, Angi's Seattle estimate (May 2026) shows heat pump repairs at $220 to $2,220 and refrigerant leak repairs at $280 to $1,670 (Angi Seattle HVAC repair costs). Those are Angi's estimates rather than our prices.
Current offers: $50 Off Emergency No Heat Calls, $50 off HVAC service or repair and 10% Off Heat Pump Tune-Up (special offers; not combined with Club pricing). 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 a heat pump repairYou approve a written, upfront price before any work begins.
Five checks before you call
- Thermostat or remote: HEAT mode, set above the room temperature, batteries good.
- Filters: the return filter on a ducted system, or the mesh filters inside each ductless head.
- Power: no tripped breaker, and the outdoor disconnect switched on.
- Outdoor unit: clear of leaves, snow, ice dams from the roof or anything leaning on it.
- Timers and modes: a ductless head left on dry, fan or a sleep timer will not heat.
Still cold? Call (425) 645-0404 and tell us the brand and what the system is doing.
Signs your heat pump needs repair
- Cold air that lasts, not just a few lukewarm minutes during defrost.
- A coil that ices over and stays that way.
- Backup heat (AUX or EM) carrying the house on mild days.
- Rapid on and off cycling.
- An outdoor unit that hums but the fan does not spin.
- Leaks, gurgling or dripping from an indoor head.
- A repeat breaker trip.
Cold snaps, ice and emergency heat
A heat pump can keep heating through a Skagit Valley cold snap, but it runs longer, defrosts more often and may lean on its backup heat. Lukewarm supply air is normal. Thin frost that clears in defrost, and steam during defrost, are normal too.
Ice that builds into a solid block, or a unit that stops heating, needs a repair visit. The usual causes are a defrost board or sensor, the outdoor fan or low refrigerant. Do not chip the ice; switch to emergency heat if you have it.
AUX heat helps the heat pump in cold weather and during defrost. EM heat runs the backup alone. AUX running most of a mild day, or a sharp rise in your bill, is a reason to book a diagnostic.
Ductless and mini-split repair
We repair all major brands of ductless mini-splits and ducted heat pumps in Mount Vernon, including systems we did not install. Home Comfort Alliance is a Mitsubishi Electric Diamond Dealer and received Gensco's Ductless and Multi-Zone Excellence recognition for 2024 to 2025. Typical fixes include drain clogs, head fan motors, sensors, boards and refrigerant leaks. More on ductless systems.
After a flood
Many Mount Vernon properties are in the Skagit River's 100-year floodplain. If flood water reached the outdoor unit or an indoor air handler, keep the system off and have it inspected before you run it. Electrical parts and controls that sat in water can fail or be unsafe after they dry.
How a heat pump repair visit works
- Book by phone or online and choose a time window.
- A NATE-certified technician from our Everett team checks the controls, electrical parts, defrost system, fans, airflow and refrigerant pressures.
- You get the diagnosis and a written price, and nothing is done until you approve it.
- The system is tested in heating after the repair, before the technician leaves.
Hours and after-hours heat pump help
Our phones are answered and bookings are accepted 24/7. Heating and cooling technicians work during business hours and are available after hours for qualifying emergencies ($330 after-hours fee), such as a heat pump that has stopped heating in cold weather.
Business-hours visits run Monday to Friday, 8 AM to 5 PM, with same-day service when possible.
Repair or replace a Mount Vernon heat pump?
Most heat pump faults can be repaired. Weigh replacement when the system is old, the repair is big, or it runs on R-22, which can still be serviced although no new R-22 has been made since 2020 (EPA).
For PSE electric customers, replacing an out-of-warranty, centrally ducted, all-electric heat pump with a qualifying cold-climate model can earn $1,500 plus a $2,400 income-based Efficiency Boost; ductless and dual fuel systems do not qualify (PSE upgrade rebate, October 2026). PSE's midstream discount of $300, $400 or $600 may apply at purchase. Cascade offers no heat pump rebate, and its furnace rebates exclude a furnace that backs up a heat pump.
We quote the repair first. To compare, use the instant quote for a range in about 30 seconds, or see heat pump installation in Mount Vernon.
Permits and utilities in Mount Vernon
- Electricity: Puget Sound Energy. Gas: Cascade Natural Gas. Neither has a rebate for repairs.
- Repairs: part-only repairs need no permit; the City exempts replacing minor parts that do not change the equipment's approval.
- Replacing a heat pump: a City of Mount Vernon mechanical permit from Development Services, 910 Cleveland Ave, (360) 336-6214, or Skagit County outside city limits, plus an L&I electrical permit.
We pull the required permits for every installation.
A recent Mount Vernon heat pump repair: a refrigerant detection controller
Many newer heat pumps include a refrigerant detection system that watches for leaks and controls the equipment if it senses one. On a Mount Vernon heat pump we installed in July, that controller tested faulty at installation, so it was bypassed until a replacement could be fitted under warranty.
In September our technician returned, confirmed the old controller was getting no power in or out, installed the new one and ran the heat pump through heating and cooling several times. The system worked properly, and the replacement was covered by the manufacturer's warranty.
Why Mount Vernon homeowners call us
- Mitsubishi Electric Diamond Dealer, Carrier Factory Authorized Dealer and Lennox Premier Dealer.
- Upfront, written prices from NATE-certified technicians.
- Licensed, bonded and insured: WA Contractor Reg. #HOMECCA785BD and WA Electrical Contractor Lic. #HOMECCA782DC.
- BBB Accredited Business since 2002, Best Pick 2025 and 2026, locally owned since 1977.
- Heat pump maintenance through the Home Comfort Club from $15 a month.
Where we repair heat pumps
Our Everett team repairs heat pumps across Mount Vernon and the Skagit Valley. See all Mount Vernon services, or our nearby Everett page.
Mount Vernon heat pump repair FAQ
How much does heat pump repair cost in Mount Vernon?
Repair visits start with a $119 dispatch (trip) fee and a $72 standard diagnostic, or $130 for a deeper one. Qualifying after-hours emergencies add a $330 after-hours fee. The repair is priced in writing before any work begins. Angi lists Seattle-area heat pump repairs at $220 to $2,220 (May 2026) as a regional benchmark; that is not our price.
How much does it cost to get a heat pump serviced?
Our heat pump tune-up is $230 per piece of equipment, or $180 for Home Comfort Club members.
Can a heat pump be repaired, or does it need replacing?
Most faults, such as capacitors, contactors, sensors, defrost controls, fan motors and small leaks, are repairable. Replacement depends on the repair, the age and the refrigerant. We price the repair, and replacement estimates are free.
Can a heat pump still heat in a Skagit Valley cold snap?
Yes, but it runs longer, defrosts more often and may lean on backup heat. Lukewarm air can be normal. If the unit stops heating or ices solid, it needs a repair visit.
Why is my heat pump blowing cold air?
Some lukewarm air is normal. Cold air for long stretches can mean a defrost cycle, a thermostat setting, a reversing valve or low refrigerant from a leak. Check that the thermostat is on HEAT and the filter is clean, then call.
Why is my heat pump covered in ice?
Frost that melts in defrost is normal. Ice that stays, or a solid block on the coil, suggests a defrost control, sensor, fan or refrigerant problem. Do not chip the ice; switch to emergency heat if you have it and book a repair.
What do emergency heat and aux heat mean?
Aux heat is backup heat that helps in cold weather or during defrost. EM heat runs only the backup. AUX running most of a mild day, or a jump in your bill, is worth a check.
Do you repair ductless mini-splits and brands you did not install?
Yes, all major brands, ducted and ductless. We are a Mitsubishi Electric Diamond Dealer, Carrier Factory Authorized Dealer and Lennox Premier Dealer.
Can you come today or after hours?
Same-day service when possible. Our phones are answered and bookings are accepted 24/7; heating and cooling technicians work during business hours and are available after hours for qualifying emergencies, such as a heat pump that has stopped heating in cold weather ($330 after-hours fee).
Is there a rebate for heat pump repair?
No. PSE and Cascade have no repair rebate, and Cascade has no heat pump rebate. Replacing an out-of-warranty ducted all-electric heat pump with a qualifying cold-climate model can earn PSE's $1,500 upgrade rebate plus a $2,400 income-based Efficiency Boost (pse.com, October 2026).
Do I need a permit for heat pump repair in Mount Vernon?
Part-only repairs need no permit. Replacing a heat pump needs a mechanical permit from the City of Mount Vernon (Skagit County outside city limits) and an L&I electrical permit; we pull the required permits for every installation.
Is Home Comfort Alliance licensed?
Yes. WA Contractor Reg. #HOMECCA785BD and WA Electrical Contractor Lic. #HOMECCA782DC. We are licensed, bonded and insured in Washington.
Sources (checked October 2026): Angi, Seattle HVAC repair cost (May 2026); PSE heat pump to heat pump upgrade rebate; PSE midstream discounts; Cascade Natural Gas safety; EPA, R-22 phaseout questions; City of Mount Vernon Development Services and floodplain FAQ; WA L&I, city electrical permits. Home Comfort Alliance prices as of October 2026.
Why Choose Home Comfort Alliance in Mount Vernon?
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 heat pump repair in Mount Vernon
Tell us what your heat pump is doing. A technician from our Everett team will diagnose it and give you a written, upfront price before any work begins.
Request heat pump repair
Our team will call you to set up your visit. For a heat pump that stops after hours, call (425) 645-0404.