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Best HVAC companies in San Francisco, CA

The highest-scoring HVAC company in and near San Francisco is Hassler Heating and Air Conditioning, LLC (score 86, 4.9 stars from 704 Google reviews). 27 companies meet the 5 Star standard within 25 km.

Last updated Sep 25, 2026How we rank
  1. 1

    Hassler Heating and Air Conditioning, LLC

    4.9 · 704 Google reviewsEl Cerrito, CA27 years in business
    Free estimatesFinancing available
    86SCORE
    (510) 210-0857 WebsiteFull profile
  2. 2

    Magic Plumbing Heating & Cooling

    4.9 · 1,931 Google reviewsSan Francisco, CA
    81SCORE
    (415) 441-2255 WebsiteFull profile
  3. 3

    Heise's Plumbing

    4.9 · 1,781 Google reviewsSan Francisco, CA
    81SCORE
    (415) 333-0704 WebsiteFull profile
  4. 4

    Flow Masters Plumbing, Drain and Water Heater

    5.0 · 711 Google reviewsDaly City, CA
    80SCORE
    (415) 237-1112 WebsiteFull profile
  5. 5

    Cabrillo Plumbing, Heating & Air

    4.9 · 1,187 Google reviewsSan Francisco, CA
    79SCORE
    (415) 360-0560 WebsiteFull profile
  6. 6

    Heating And Air Experts

    5.0 · 801 Google reviewsSan Francisco, CA
    79SCORE
    (510) 518-8470 WebsiteFull profile
  7. 7

    Atlas Heating and Air Conditioning

    4.9 · 595 Google reviewsOakland, CA
    77SCORE
    (510) 488-4152 WebsiteFull profile
  8. 8

    Burkell Plumbing Inc.

    4.9 · 479 Google reviewsSausalito, CA
    77SCORE
    (415) 332-3091 WebsiteFull profile
  9. 9

    Breathable

    4.9 · 271 Google reviewsOakland, CA
    75SCORE
    (888) 978-4332 WebsiteFull profile
  10. 10

    Local Plumbing

    5.0 · 236 Google reviewsSausalito, CA
    75SCORE
    (415) 484-0454 WebsiteFull profile
  11. 11

    Albert Nahman Plumbing, Heating, and Cooling

    4.7 · 3,388 Google reviewsBerkeley, CA
    74SCORE
    (510) 408-7879 WebsiteFull profile
  12. 12

    1 Backflow Plumbing

    5.0 · 154 Google reviewsSan Francisco, CA
    74SCORE
    (415) 913-8941 WebsiteFull profile
  13. 13

    Hydroflow

    5.0 · 109 Google reviewsSan Francisco, CA
    74SCORE
    (415) 623-6564 WebsiteFull profile
  14. 14

    Arch Plumbing Inc.

    4.9 · 304 Google reviewsSan Francisco, CA
    73SCORE
    (415) 325-2547 WebsiteFull profile
  15. 15

    Aarvaks Heating & Air Conditioning, Inc.

    4.9 · 80 Google reviewsBerkeley, CA
    70SCORE
    (510) 848-5010 WebsiteFull profile
  16. 16

    Honrath & Stacey Plumbing & Heating

    4.9 · 221 Google reviewsRichmond, CA
    69SCORE
    (510) 237-5080 WebsiteFull profile
  17. 17

    SmartHome Appliances & HVAC

    4.8 · 184 Google reviewsSan Francisco, CA
    69SCORE
    (415) 877-3277 WebsiteFull profile
  18. 18

    Carol Flynn Heating & Cooling

    5.0 · 71 Google reviewsBrisbane, CA
    69SCORE
    (650) 697-1535 WebsiteFull profile
  19. 19

    Next HVAC and Appliance repair

    4.8 · 375 Google reviewsSan Francisco, CA
    68SCORE
    (628) 303-0533 WebsiteFull profile
  20. 20

    Lutz Plumbing Inc

    4.9 · 125 Google reviewsSan Francisco, CA
    68SCORE
    (415) 621-4292 WebsiteFull profile
  21. 21

    Right Choice Air Duct Cleaners

    4.9 · 79 Google reviewsSan Francisco, CA
    68SCORE
    (415) 936-7400 WebsiteFull profile
  22. 22

    Freon HVAC & Electrical Service - San Francisco

    5.0 · 41 Google reviewsSan Francisco, CA
    68SCORE
    (415) 915-9945 WebsiteFull profile
  23. 23

    Five Or Free Electrical Heating & Air Solutions

    4.7 · 267 Google reviewsOakland, CA
    67SCORE
    (510) 560-5394 WebsiteFull profile
  24. 24

    Randy's Home Services

    4.9 · 74 Google reviewsSan Francisco, CA
    67SCORE
    (415) 300-4077 WebsiteFull profile
  25. 25

    Lowe's Air Duct Cleaning

    4.9 · 151 Google reviewsSan Francisco, CA
    66SCORE
    (415) 858-6633 WebsiteFull profile
  26. 26

    Ortiz Heating & Air Conditioning

    5.0 · 69 Google reviewsBurlingame, CA
    66SCORE
    (650) 758-4900 WebsiteFull profile
  27. 27
    60SCORE
    (510) 710-5571 WebsiteFull profile

Compare the top 10

Top HVAC companies in San Francisco by 5 Star Score
#CompanyScoreGoogle ratingReviewsYearsBased in
1Hassler Heating and Air Conditioning, LLC864.970427El Cerrito
2Magic Plumbing Heating & Cooling814.91,931–San Francisco
3Heise's Plumbing814.91,781–San Francisco
4Flow Masters Plumbing, Drain and Water Heater805.0711–Daly City
5Cabrillo Plumbing, Heating & Air794.91,187–San Francisco
6Heating And Air Experts795.0801–San Francisco
7Atlas Heating and Air Conditioning774.9595–Oakland
8Burkell Plumbing Inc.774.9479–Sausalito
9Breathable754.9271–Oakland
10Local Plumbing755.0236–Sausalito

HVAC companies in San Francisco: quick answers

Who is the highest-rated HVAC company in San Francisco, CA?

Hassler Heating and Air Conditioning, LLC has the highest 5 Star Score among HVAC companies in and near San Francisco: 86 out of 100, with a 4.9 star Google rating from 704 reviews.

How many 5 Star HVAC companies serve San Francisco?

27 HVAC companies meet our standard within 25 km of San Francisco: at least a 4.5 star rating, 20 or more reviews and a score of 60 or higher. The top 27 have 14,429 Google reviews between them, averaging 4.91 stars.

How are these HVAC companies ranked?

By 5 Star Score: rating quality adjusted for review count (45 points), review volume (25), review recency (15), years in business (10) and license verification (5). Businesses cannot pay to change their score.

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Ratings and review counts come from each company's public Google listing and are re-checked monthly. 5 Star Home Service Pros is independent; companies cannot pay for placement.