444 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in San Francisco: Heise's Plumbing, CR Score 66/100; 4.9★ from 1,454 Google reviews; open 24/7.
Best for emergencies (open 24/7): Cabrillo Plumbing, Heating & Air, posts 24/7 hours; ranked #2 of 444.
Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 444 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
444 San Francisco HVAC contractors are ranked here by CR Score, from ten published factors. 97 are open 24/7, 263 open Saturdays and 214 open Sundays, based on posted hours. The median Google rating is 4.9★ across 444 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Heise's Plumbing | 66 | 4.9★ (1,454) | San Francisco | 24/7 | Overall |
| 2 | Cabrillo Plumbing, Heating & Air | 66 | 4.9★ (966) | San Francisco | 24/7 | Emergencies |
| 3 | Magic Plumbing Heating & Cooling | 65 | 4.9★ (1,876) | San Francisco | Sat · Sun · Evenings | — |
| 4 | Albert Nahman Plumbing, Heating, and Cooling | 64 | 4.7★ (3,311) | Berkeley, 10 mi away | 24/7 | — |
| 5 | Arch Plumbing Inc. | 64 | 4.9★ (286) | San Francisco | 24/7 | — |
| 6 | Service Champions | 62 | 4.9★ (5,220) | Martinez, 24 mi away | 24/7 | Most reviews |
| 7 | Around The Clock HVAC | 62 | 5.0★ (207) | San Francisco | Sat · Sun · Evenings | — |
| 8 | Local Plumbing | 62 | 5.0★ (211) | Sausalito, 7 mi away | 24/7 | — |
| 9 | Next HVAC and Appliance repair | 62 | 4.8★ (333) | San Francisco | Sat · Sun · Evenings | — |
| 10 | San Francisco Expert Heating and Air | 61 | 4.9★ (69) | San Francisco | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 1,454 Google reviews, listed on Google as “HVAC contractor”.
Based in San Francisco
Ranked #2 because of its Google rating and trade focus: 4.9★ from 966 Google reviews, listed on Google as “HVAC contractor”.
Based in San Francisco
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,876 Google reviews, listed on Google as “HVAC contractor”.
Based in Berkeley, 10 mi away
Ranked #4 because of its Google rating and trade focus: 4.7★ from 3,311 Google reviews, listed on Google as “HVAC contractor”.
Based in San Francisco
Ranked #5 because of its Google rating and trade focus: 4.9★ from 286 Google reviews, listed on Google as “HVAC contractor”.
Based in Martinez, 24 mi away
Ranked #6 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in San Francisco.
Based in San Francisco
Ranked #7 because of its Google rating and trade focus: 5.0★ from 207 Google reviews, listed on Google as “HVAC contractor”.
Based in Sausalito, 7 mi away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 211 Google reviews, listed on Google as “HVAC contractor”.
Based in San Francisco
Ranked #9 because of its Google rating and trade focus: 4.8★ from 333 Google reviews, listed on Google as “HVAC contractor”.
Based in San Francisco
Ranked #10 because of its Google rating and trade focus: 4.9★ from 69 Google reviews, listed on Google as “HVAC contractor”.
Based in San Anselmo, 16 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 762 Google reviews, listed on Google as “HVAC contractor”.
Based in San Ramon, 24 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 1,017 Google reviews, listed on Google as “HVAC contractor”.
Based in South San Francisco, 9 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 369 Google reviews, listed on Google as “HVAC contractor”.
Based in San Francisco
Ranked #14 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “HVAC contractor”.
Based in Hayward, 20 mi away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 863 Google reviews, listed on Google as “HVAC contractor”.
Based in Walnut Creek, 23 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 481 Google reviews, listed on Google as “HVAC contractor”.
Based in Oakland, 9 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 200 Google reviews, listed on Google as “HVAC contractor”.
Based in Oakland, 8 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 569 Google reviews, listed on Google as “HVAC contractor”.
Based in Richmond, 10 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “HVAC contractor”.
Based in Alameda, 4 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “HVAC contractor”.
Based in San Francisco
Ranked #21 because of its Google rating and trade focus: 4.7★ from 25 Google reviews, listed on Google as “HVAC contractor”.
Based in Novato, 22 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 480 Google reviews, listed on Google as “Air conditioning contractor”.
Based in San Mateo, 18 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 264 Google reviews, listed on Google as “HVAC contractor”.
Based in San Francisco
Ranked #24 because of its Google rating and trade focus: 4.8★ from 52 Google reviews, listed on Google as “HVAC contractor”.
Based in Hayward, 19 mi away
Ranked #25 because of its Google rating and trade focus: 4.5★ from 1,252 Google reviews, listed on Google as “HVAC contractor”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 444 ranked HVAC contractors here; the rest are on their profiles.
20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A.L.B HVAC refrigeration service | 4.7★ (12) | 9 mi |
| AC and Company | 5.0★ (2) | In San Francisco |
| Aidaly Care California LLC | 5.0★ (1) | In San Francisco |
| BEST CHOICE HVAC, INC | 5.0★ (4) | In San Francisco |
| California HVAC | 4.9★ (59) | 11 mi |
| COLLINGWOOD LLC | 5.0★ (1) | In San Francisco |
| Eco Systems Heating & Air Conditioning | 4.8★ (138) | 24 mi |
| ECONOMY INSULATION AND HVAC | In San Francisco | |
| Electric Air | 5.0★ (72) | 24 mi |
| Five Or Free Electrical Heating & Air Solutions | 4.8★ (219) | 10 mi |
| Flex Air Duct Cleaning | In San Francisco | |
| Fresh Air Solutions | 5.0★ (1) | In San Francisco |
| Golden Comfort AC Repair & Heating | 5.0★ (27) | 13 mi |
| Horizon Heating controller | In San Francisco | |
| Magic AC Repair Noe Valley | 4.9★ (24) | 16 mi |
| O'Keeffe Mechanical Co Inc | 3.0★ (3) | In San Francisco |
| Pacific Coast Home Services | 4.5★ (86) | 17 mi |
| Rainbow Heating Controller | In San Francisco | |
| San Francisco Heating and Air Conditioning Inc.. | 5.0★ (1) | In San Francisco |
| Sears Heating and Air Conditioning | In San Francisco |
National price ranges in USD, not adjusted for San Francisco. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
In California, Contractors State License Board (CSLB) licenses C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license.
Jobs of $1,000 or more in labor and materials (from January 1, 2025).
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
We scored 444 San Francisco HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In San Francisco data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |