Shortlist · Mount Vernon, WA
Best HVAC in Mount Vernon
Top 9 ranked HVAC providers in Mount Vernon, WA. #1 pick: Foss Heating Cooling (4.9★, 934 reviews).
9 rankedL&I license-verifiedUpdated regularly
On this page
Ranked shortlist
Request quotes →- Foss Heating CoolingTop pickfurnace installationfurnace repairheat pump installationheat pump repair
What customers say “Andre at Foss Came to our rescue with very little notice during a cold week in February. I was at work at the time and…”
- Handy S HeatingTop ratedfurnace installationfurnace repairheat pump installationheat pump repair
What customers say “My gas fireplace was in bad bad shape. It had no service for a number of years, and would not produce a decent flame. I…”
- Hoover Cmrcl RefrigerationVerified
What customers say “Great company. Not only do they have amazing technicians, Sage stopped by to buy parts... and fixed our countertop. 🤯…”
- Apex Radiant HeatingVerified
What customers say “Excellent service from Stacey Davis, as always. He was able to get a replacement expansion tank (from my iphone photo)…”
- Audio Video ResourceVerified
What customers say “Amazing customer service. Amazing technician.. quick and easy to set up appointment. Great price. I definitely…”
- Dimensional CommunicationsVerified
What customers say “Never been here, but it appeared on Google with no reviews so bam here 5 stars.”
- Snowline RefrigerationVerified
- North Sound EnviroairVerified
- Tac ServicesVerified
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 Mount Vernon?
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
See our editorial standardsReport inaccurate info about Best HVAC in Mount Vernon
Get matched with top Mount Vernon pros
Start with your ZIP and we will connect you with the highest-ranked local providers.