Shortlist · Seattle, WA
Best HVAC in Seattle
Top 66 ranked HVAC providers in Seattle, WA. #1 pick: Greenwood Heating And Home Services (4.9★, 4,421 reviews).
66 rankedL&I license-verifiedUpdated regularly
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Ranked shortlist
Request quotes →- furnace installationfurnace repairheat pump installationheat pump repair
What customers say “I had a heat pump installed a year ago and initially had some problems keeping it running. This left me feeling…”
- Olson Energy ServiceTop ratedfurnace installationfurnace repairheat pump installationheat pump repair
What customers say “We called Olson Energy Service as our air conditioning unit was not working as effectively as it had previously done…”
- Evergreen Home Heating And EnergyTop ratedfurnace installationfurnace repairheat pump installationheat pump repair
What customers say “I received 4 quotes to search for and repair our leaking ductless mini split system, installed by another company 5…”
- Glendale Heating Air ConditioningTop ratedfurnace installationfurnace repairheat pump installationheat pump repair
What customers say “We had a great experience with Glendale Heating & Air Conditioning. Our furnace wasn’t working and the house was…”
- furnace installationfurnace repairheat pump installationheat pump repair
What customers say “I needed a furnace check-up/ tune up. The technician Daniel showed up on time with an awesome attitude. Very…”
- furnace installationfurnace repairheat pump installationheat pump repair
What customers say “I recently had SWP upgrade my electrical box to a Span Electrical Box. I also had my HOD and furnace PM done. I have…”
- Acco Engineered SystemsTop ratedindoor air qualitymaintenance planscommercial hvacelectrical
What customers say “Our AC started making noise and we were concerned that it might stop working. When I called I spoke to Carmen, who was…”
- furnace installationfurnace repairheat pump installationheat pump repair
What customers say “I had our HVAC repair service, thanks to technician Hai. He clearly explain the problem, inspect the system…”
- furnace installationfurnace repairthermostat installationmaintenance plans
What customers say “We had an outstanding experience with this company! They provided incredibly fast, careful, and professional service…”
- furnace installationfurnace repairheat pump installationheat pump repair
What customers say “When our washing machine failed in the middle of a cycle, I booked an appointment online at 1:30am and got a call at…”
How we rank
License + business status
Active state license and business registration required.
Verified reviews
Ratings weighted across sources and recency, not raw star counts.
Responsiveness
Quote turnaround time and communication track record.
Service coverage
Coverage of the city itself and surrounding neighborhoods.
Frequently Asked Questions
How do you rank the best HVAC pros in Seattle?
We score providers on license status, service coverage, verified reviews, and responsiveness. We update rankings as new data comes in.
Should I always pick the top-ranked company?
Not necessarily. The ranking is a strong starting point, but availability, project scope, and quote price matter. Request two or three quotes to confirm the best fit.
Are these companies actually licensed?
Yes. Every listed provider has a verified state license at time of publication.
Licensing verified weekly. Reviews refreshed within the last 30 days.
Licensing data: Washington Department of Labor & Industries (L&I) · Company data: verified business records + Google Business profile
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