HVAC technician servicing an outdoor heat pump beside a home

The 24 Best HVAC Contractors in Bellingham

Heat pumps, furnaces, AC repair, and duct work. Ranked from 9,897 Google reviews across the Bellingham area.

  • Updated November 2026
  • 24 met the bar
  • 4.77 average rating

The short answerThe highest ranked HVAC contractors in Bellingham right now are Barron Heating AC Electrical & Plumbing (4.9 stars, 2,518 reviews), Marr's Heating, AC, Plumbing & Electrical (4.9 stars, 2,074 reviews), and West Mechanical Heating Cooling Electrical, Plumbing (4.9 stars, 1,418 reviews). They come out on top of 24 eligible businesses after weighting each rating by its review volume.

  1. 1

    Barron Heating AC Electrical & Plumbing

    4.9(2,518 Google reviews)

    5100 Pacific Hwy, Ferndale

    HVAC contractor
  2. 2

    Marr's Heating, AC, Plumbing & Electrical

    4.9(2,074 Google reviews)

    1677 Mt Baker Hwy, Bellingham

    HVAC contractor
  3. 3

    West Mechanical Heating Cooling Electrical, Plumbing

    4.9(1,418 Google reviews)

    4443 Aldrich Rd, Bellingham

    Air conditioning system supplier
  1. 4

    Andgar Home Comfort

    4.9(1,128 Google reviews)

    6920 Salashan Pkwy A-102, Ferndale · HVAC contractor · Open 24 hours

  2. 5

    LSM Heating, Plumbing, Electric, Inc.

    4.9(952 Google reviews)

    837 Evergreen St, Lynden · Furnace repair service · Open 24 hours

  3. 6

    Clean Air Heating & Cooling

    4.9(910 Google reviews)

    3620 Iron Gate Rd #119, Bellingham · Heating contractor · Open 24 hours

  4. 7

    A Plus Heating and Air Conditioning

    5.0(35 Google reviews)

    Service-area business, Bellingham area · HVAC contractor

  5. 8

    Comfort Zone HVAC

    5.0(33 Google reviews)

    Service-area business, Bellingham area · HVAC contractor

  6. 9

    Cascadia Energy Solutions LLC

    5.0(22 Google reviews)

    4039 Eliza Ave, Bellingham · HVAC contractor

  7. 10

    Air Plus Heating & Air Conditioning Bellingham

    4.9(37 Google reviews)

    1313 E Maple St Unit 110, Bellingham · HVAC contractor

  8. 11

    Four Seasons Heating & Cooling, LLC

    4.9(27 Google reviews)

    1500 Azalea Ct, Lynden · HVAC contractor

  9. 12

    Mumm's LLC Heating & A/C contractor

    5.0(10 Google reviews)

    5676 2nd Ave, Ferndale · Heating contractor

  10. 13

    Feller Heating & Air Conditioning

    4.8(291 Google reviews)

    501 Virginia St, Bellingham · HVAC contractor

  11. 14

    Envirosmart Solution

    4.9(13 Google reviews)

    4150 Track St, Bellingham · Heating contractor

  12. 15

    Bellingham Auto Air

    4.8(89 Google reviews)

    2014 Pacific St, Bellingham · Auto air conditioning service

  13. 16

    Reliance Indoor Air Quality Heating & Air Conditioning

    4.8(23 Google reviews)

    Service-area business, Bellingham area · Heating contractor

  14. 17

    Bellingham Heating & AC

    4.8(11 Google reviews)

    1206 E Sunset Dr, Bellingham · HVAC contractor

  15. 18

    Smith Mechanical

    4.7(55 Google reviews)

    6146 Portal Way, Ferndale · Heating contractor · Open 24 hours

  16. 19

    Heating Green

    4.7(111 Google reviews)

    2005 Masonry Way Unit 101, Bellingham · Heating equipment supplier

  17. 20

    A A Anderson Co Inc

    4.5(15 Google reviews)

    1409 N Forest St, Bellingham · HVAC contractor

  18. 21

    Andy Refrigeration

    4.1(12 Google reviews)

    6119 Portal Way, Ferndale · HVAC contractor · Open 24 hours

  19. 22

    Orca Marine Cooling Systems

    4.1(14 Google reviews)

    3883 Iron Gate Rd, Bellingham · Manufacturer

  20. 23

    Blythe Mechanical

    4.4(37 Google reviews)

    3000 W Illinois St, Bellingham · Mechanical contractor

  21. 24

    Northwest Energy Systems of Washington Inc.

    4.3(62 Google reviews)

    4110 Marblemount Ln, Bellingham · HVAC contractor

Comparing local businesses and their star ratings on a phone

How this list was made

We pulled 167 Bellingham-area HVAC contractors from Google Maps, then kept the 24 with a rating of 4.0 or higher and at least 10 reviews. The average rating in this group is 4.77 stars.

Ratings with only a few reviews are pulled toward that average, so a business needs a real track record to reach the top. Nobody pays to be here. Read the full method.

Businesses reviewed
167
Met the bar
24
Average rating
4.77
Reviews behind this list
9,897

Questions people ask

Who is the best HVAC contractor in Bellingham?

As of November 2026, Barron Heating AC Electrical & Plumbing ranks first among 24 eligible Bellingham HVAC contractors, with a 4.9 star Google rating across 2,518 reviews. Marr's Heating, AC, Plumbing & Electrical and West Mechanical Heating Cooling Electrical, Plumbing round out the top three.

Which Bellingham HVAC contractors have the most reviews?

Of the 24 HVAC contractors ranked on this page, Barron Heating AC Electrical & Plumbing (2,518), Marr's Heating, AC, Plumbing & Electrical (2,074), and West Mechanical Heating Cooling Electrical, Plumbing (1,418) have the most Google reviews.

Are any Bellingham HVAC contractors open 24 hours?

Yes. Google lists Barron Heating AC Electrical & Plumbing, Marr's Heating, AC, Plumbing & Electrical, Andgar Home Comfort, LSM Heating, Plumbing, Electric, Inc., and Clean Air Heating & Cooling as open 24 hours. Call ahead to confirm emergency availability.

How did you rank these HVAC contractors?

We started with 167 Bellingham-area businesses from Google Maps and kept the 24 with at least a 4.0 star rating and 10 or more reviews. Each rating is then weighted by how many reviews back it up, so a perfect score from a handful of reviews does not outrank a near-perfect score from hundreds.

Can a business pay to rank higher?

No. Positions come only from public Google ratings and review volume. Claiming or updating a listing is free and does not change its rank.

Own a Bellingham business?

Every listing is free. Claim yours to correct your phone, hours, or website, or tell us about a category we are missing. Claiming never changes a rank.

Small business owner at the door of a Bellingham shop