The independent heating and cooling company across Washington
Heat Pump Repair in Mountlake Terrace, WA — Book a Visit Today
Heat pumps outnumber furnaces around here, so heat pump repair for Mountlake Terrace homes is most of our winter. The usual complaints are lukewarm air, a unit iced over and staying iced, defrost that never completes, or the auxiliary heat running all day and the house still feeling cold. Wet Puget Sound winters are hard on defrost boards and sensors, and standing water around a pad does not help. Safe checks on your end: thermostat mode and batteries, the breaker, the filter, and clearing debris from the outdoor coil. Then call us or fill in the quote form.
Call (888) 365-6280- You reach a person, not a menu
- Open every day
- The quote comes first, in writing
Taking calls until 5:00 PM PT
Common heat pump faults in Mountlake Terrace homes
- The air out of the vents feels cool, but the system is running Reversing valve stuck in cooling, low refrigerant charge, or a thermostat wired for the wrong changeover
- The outdoor unit is buried in ice and won't clear Defrost control board, defrost sensor, or outdoor fan motor failure
- Auxiliary heat runs constantly and the house still lags Compressor not staging on, lockout condition, or an undercharged refrigerant circuit
- The furnace side never kicks in on cold mornings Dual-fuel changeover control, outdoor sensor, or a failed handoff at the thermostat
- It hums, clicks, and then goes quiet outside Contactor, start capacitor, or compressor electrical fault
Search for it as heat pump repair or heat pump service and you land in the same place: one visit, one written quote.
Mountlake Terrace coverage
From Mountlake Terrace we also cover Lynnwood, Edmonds, Brier, Shoreline, Lake Forest Park, Kenmore, Bothell and Woodway.
Other repairs we do in Mountlake Terrace
- AC Repair
- Furnace Repair
- AC Installation
- Furnace Installation
- Ductwork Repair
- HVAC Maintenance
- Duct Cleaning
- Thermostat Installation
- Mini-Split Repair
- Indoor Air Quality
Heat Pump Repair service hub → · All Mountlake Terrace services →
How we compare to other HVAC companies in Mountlake Terrace
| Willamette Heat & Cool | Big-box repair chains | Handyman listings | |
|---|---|---|---|
| Written quote before any work | ✓ | ✕ | ✕ |
| Live answer seven days a week | ✓ | ✕ | ✓ |
| All major brands, gas and electric | ✓ | ✓ | ✕ |
| No manufacturer targets to hit | ✓ | ✕ | ✓ |
| Crews familiar with homes like yours | ✓ | ✕ | ✓ |
What you get on every job
You approve a written quote first
Covering 162 cities across Oregon, Washington.Phones answered by people
Open 7 days, 8:00 AM to 5:00 PM PT.Every major brand, gas and electric
Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.Heat Pump Repair in Mountlake Terrace — quick answers
Why does my heat pump blow cool air in winter?
A heat pump moves heat rather than making it, so its supply air is cooler than a furnace even when working. If it feels genuinely cold, we look at the reversing valve, refrigerant charge, and how the thermostat is calling for changeover.
Is frost on the outdoor unit normal?
A light coat of frost in wet Northwest weather is normal, and the defrost cycle should clear it every so often with a whoosh of steam. Thick ice that stays for hours, or ice on top of the fan, means the defrost controls need testing.
Can you repair a dual-fuel system?
Yes. Dual-fuel pairs a heat pump with a gas furnace, and most failures we find are in the changeover control, the outdoor temperature sensor, or the wiring between the two. We test the handoff at real outdoor conditions instead of guessing.
Should I repair or replace an older heat pump?
We tell you what the repair involves, what else looks worn, and how the refrigerant type affects future work. A single failed capacitor on a ten year old unit is worth fixing. A compressor failure on an aging system deserves a longer conversation.
How soon can you get to a Mountlake Terrace home?
Call us and we will give you a real window rather than a guess. Most Mountlake Terrace calls are scheduled within a few days, and no-heat or no-cooling situations move up the list. Before we arrive you can check the thermostat batteries and settings, look for a tripped breaker, swap a dirty filter, make sure supply vents are open, and clear leaves or blackberry growth away from the outdoor unit. If you ever smell gas, leave the house first, call 911 or your gas utility from outside, then call us.
How it works
- Step 1
Tell us the symptom
Call or fill in the quote form. Describe the noise, the smell, the temperature, and when it started. That detail helps us bring the right parts and gives you an honest idea of the visit ahead.
- Step 2
We diagnose on site
A technician checks the thermostat, airflow, electrical connections, refrigerant behaviour and the outdoor unit. We tell you what failed and why, in plain language, before anyone reaches for a part or a price.
- Step 3
You choose the repair
We lay out the fix, any parts on order, and what happens if you wait. Once you agree, we do the work and confirm the system holds temperature before we pack up and leave.
- A real person answers
- Open 7 days
- Written quote before work starts
Why homeowners call us
- Heat pumps are our normalIn this region heat pumps outnumber furnaces, so defrost boards, reversing valves and short cycling in wet weather are everyday work for us. We know how these systems behave in a cold December rain, not just on a test bench.
- Wet winter defrost problemsIce on the outdoor coil, a unit that runs and runs without warming the house, puddles that refreeze under the pad. We trace whether it is a sensor, a stuck valve, drainage, or airflow, then fix the actual cause.
- Filtration after smoke seasonWildfire smoke turned indoor air quality into a real conversation here. We look at filter fit, return sizing and IAQ options that your blower can actually push air through, rather than choking the system with the wrong media.
- We explain before we chargeYou get the diagnosis, the options and the trade-offs before work starts. If a repair is not worth it on an old system, we say so. No pressure, no jargon dumped on you at the door.
- All major brands, gas & electricOne independent crew for Carrier, Trane, Lennox, Goodman, Rheem and more.
- Straight answersNot worth fixing? We say that out loud, and often it saves you the visit fee.
Heat Pump Repair in Mountlake Terrace
Every day it sits broken costs you something
Tell us the symptom, sign off on the written quote, get the machine back. Starting takes a minute.
- A real person answers
- Open 7 days
- Written quotes
- All major brands
- Gas & electric
Rather not call? Get a free quote →