65/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 762 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 762 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Ross Ave, San Anselmo, CA 94960
Best HVAC Contractors in San Rafael, CA (2026)
276 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in San Rafael: Ongaro & Sons, CR Score 65/100; 4.9★ from 762 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Bellows Plumbing, Heating, Cooling & Electrical, posts 24/7 hours; ranked #2 of 276.
- 4
Most-reviewed: Service Champions, 5,220 Google reviews at 4.9★, the most of 276 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
276 San Rafael HVAC contractors are ranked here by CR Score, from ten published factors. 51 are open 24/7, 167 open Saturdays and 135 open Sundays, based on posted hours. The median Google rating is 4.9★ across 276 rated businesses.
Top 10 HVAC contractors in San Rafael at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Ongaro & Sons | 65 | 4.9★ (762) | San Anselmo, 2 mi away | 24/7 | Overall |
| 2 | Bellows Plumbing, Heating, Cooling & Electrical | 63 | 4.9★ (480) | Novato, 7 mi away | 24/7 | Emergencies |
| 3 | Albert Nahman Plumbing, Heating, and Cooling | 62 | 4.7★ (3,311) | Berkeley, 17 mi away | 24/7 | — |
| 4 | Service Champions | 62 | 4.9★ (5,220) | Martinez, 24 mi away | 24/7 | Most reviews |
| 5 | Heise's Plumbing | 62 | 4.9★ (1,454) | San Francisco, 18 mi away | 24/7 | — |
| 6 | Local Plumbing | 62 | 5.0★ (211) | Sausalito, 8 mi away | 24/7 | — |
| 7 | Cabrillo Plumbing, Heating & Air | 61 | 4.9★ (966) | San Francisco, 18 mi away | 24/7 | — |
| 8 | Peter Levi Plumbing, Heating, Cooling, Drains | 61 | 4.8★ (1,640) | Novato, 7 mi away | Sat · Evenings | — |
| 9 | Elevated Comfort | 61 | 5.0★ (90) | San Rafael | Sat · Sun · Evenings | — |
| 10 | Magic Plumbing Heating & Cooling | 60 | 4.9★ (1,876) | San Francisco, 19 mi away | Sat · Sun · Evenings | — |
The 276 best HVAC contractors in San Rafael, ranked
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.
Based in Novato, 7 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.9★ from 480 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.9★ from 480 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 86 Hamilton Dr Suite A, Novato, CA 94949
Based in Berkeley, 17 mi away
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.7★ from 3,311 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 3,311 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3333 Martin Luther King Jr Way, Berkeley, CA 94703
Based in Martinez, 24 mi away
62/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 5,220 Google reviews, the most in San Rafael.
- 4.9★ from 5,220 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 261 Arthur Rd, Martinez, CA 94553
Based in San Francisco, 18 mi away
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 1,454 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,454 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 260 Ocean Ave, San Francisco, CA 94112
Based in Sausalito, 8 mi away
62/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 211 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 211 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 323 Pine St Ste. F, Sausalito, CA 94965
Based in San Francisco, 18 mi away
61/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 966 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 966 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 78 Dorman Ave, San Francisco, CA 94124
Based in Novato, 7 mi away
61/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 1,640 Google reviews, listed on Google as “Air conditioning contractor”.
- 4.8★ from 1,640 Google reviews
- Hours
- Mon–Fri 7 AM–7:30 PM · Sat 7:30 AM–4 PM · Sun closed
- Address
- 24 Digital Dr STE 1, Novato, CA 94949
Based in San Rafael
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 90 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 90 Google reviews
- Hours
- Mon–Sat 7 AM–8 PM · Sun 8 AM–8 PM
- Address
- 1105 Francisco Blvd E #4, San Rafael, CA 94901
Based in San Francisco, 19 mi away
60/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 1,876 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,876 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 1455 Bancroft Ave, San Francisco, CA 94124
#11 Ongaro & Sons
Based in Petaluma, 21 mi away
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 538 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 538 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 719 Southpoint Blvd, Petaluma, CA 94954
Based in San Francisco, 18 mi away
60/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.9★ from 286 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 286 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 121 Quint St STE 5E, San Francisco, CA 94124
#13 Fuse Service
Based in Richmond, 11 mi away
59/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 94 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 94 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 173 Lakeshore Ct, Richmond, CA 94804
Based in Albany, 11 mi away
59/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 62 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 62 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in San Francisco, 14 mi away
58/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 69 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 69 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1725 Montgomery St, San Francisco, CA 94111
Based in Novato, 7 mi away
58/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 588 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 588 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 14 Commercial Blvd #133, Novato, CA 94949
Based in El Cerrito, 12 mi away
58/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 418 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 418 Google reviews
- Hours
- Mon–Thu 7:30 AM–9 PM · Fri 7:30 AM–7 PM · Sat 8 AM–4:30 PM · Sun closed
- Address
- 1537 S 56th St, El Cerrito, CA 94530
Based in Benicia, 23 mi away
58/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 1,142 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 1,142 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 361 W Channel Rd, Benicia, CA 94510
Based in San Francisco, 16 mi away
58/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.8★ from 333 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 333 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat–Sun 8 AM–6 PM
- Address
- 1 Henry Adams St unit S324, San Francisco, CA 94103
Based in San Rafael
58/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 54 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 1201 Andersen Dr STE J, San Rafael, CA 94901
Based in San Francisco, 19 mi away
58/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 207 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 207 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 737 Lisbon St, San Francisco, CA 94112
Based in Berkeley, 11 mi away
58/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 27 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Fairfax, 3 mi away
57/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 17 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 18 Napa Ave, Fairfax, CA 94930
#24 1-888-Heat-Pumps
Based in Berkeley, 16 mi away
57/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 45 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 45 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1826 Prince St, Berkeley, CA 94703
Based in Alameda, 14 mi away
57/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 32 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
HVAC contractors ranked #26 to #50
#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 276 ranked HVAC contractors here; the rest are on their profiles.
Also serving San Rafael
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) | 19 mi |
| ARASTEK Heating and Cooling , HVAC , Air Conditioning | 5.0★ (2) | 9 mi |
| BAYSIDE HVAC PRODUCTS LLC | 5.0★ (1) | In San Rafael |
| BEST CHOICE HVAC, INC | 5.0★ (4) | 19 mi |
| Brian Feeney Plumbing | 5.0★ (4) | In San Rafael |
| Brothers Energy | 5.0★ (2) | 9 mi |
| California HVAC | 4.9★ (59) | 22 mi |
| Central Refrigeration Co | 4.2★ (5) | 21 mi |
| Denny's House of Plumbing Inc | 4.8★ (5) | In San Rafael |
| Five Or Free Electrical Heating & Air Solutions | 4.8★ (219) | 18 mi |
| Icon Plumbing & Design | 4.0★ (4) | In San Rafael |
| Local Heating & Air Conditioning | 5.0★ (1) | In San Rafael |
| Lower Hills Heating and Air Conditioning | 5.0★ (4) | 21 mi |
| Marin Mechanical Contractors | 5.0★ (4) | In San Rafael |
| Nor-Cal Refrigeration | 4.0★ (1) | In San Rafael |
| North Cal Heating And Air | 5.0★ (2) | 9 mi |
| North Star Heating & Cooling | 5.0★ (2) | 9 mi |
| ON TIME HVAC SF | 4.0★ (8) | 23 mi |
| Restoration Brothers Mold inspections -Water & Fire damaged services | 5.0★ (10) | In San Rafael |
| SOS PLUMBING, HEATING & AIR | 4.0★ (3) | 23 mi |
How much do HVAC contractors cost in San Rafael?
National price ranges in USD, not adjusted for San Rafael. 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 |
How to check an HVAC contractor's license in California
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).
- Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
- Check that the status is active and the name matches the contract or truck.
- Ask for proof of insurance before work starts.
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
When to hire an HVAC contractor in California
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
How we ranked San Rafael HVAC contractors
We scored 276 San Rafael 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 Rafael 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 |
HVAC contractors in San Rafael: frequently asked questions
Who is the best HVAC contractor in San Rafael?
By CR Score, the highest-ranked HVAC contractor in San Rafael, CA is Ongaro & Sons with a CR Score of 65/100. It has 4.9★ from 762 Google reviews. It is open 24/7. Bellows Plumbing, Heating, Cooling & Electrical (#2) and Albert Nahman Plumbing, Heating, and Cooling (#3) follow. We ranked 276 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in San Rafael?
ContractorsRanked ranks 276 HVAC contractors serving San Rafael, CA. 2 of them are based in San Rafael; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in San Rafael are open 24/7?
51 ranked HVAC contractors in San Rafael post 24/7 hours. The highest-ranked are Ongaro & Sons (#1), Bellows Plumbing, Heating, Cooling & Electrical (#2) and Albert Nahman Plumbing, Heating, and Cooling (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in San Rafael work on weekends?
167 of 276 ranked HVAC contractors post Saturday hours and 135 post Sunday hours. The highest-ranked open Saturdays are Ongaro & Sons (#1), Bellows Plumbing, Heating, Cooling & Electrical (#2) and Albert Nahman Plumbing, Heating, and Cooling (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in California?
In California, Contractors State License Board (CSLB) handles licensing and covers C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license. Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).
How much does ac replacement cost in San Rafael?
AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for San Rafael. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do San Rafael HVAC contractors have?
The median Google rating among 276 rated HVAC contractors in San Rafael is 4.9★, with a median of 14 reviews. Service Champions has the most, 5,220 reviews, and ranks #4. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire an HVAC contractor in San Rafael?
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
Update log for San Rafael
- October 2026: CR Scores recalculated for 276 hvac contractors serving San Rafael.
- October 2026: 2 duplicate listings merged.
More HVAC contractors and San Rafael pages
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Other trades in San Rafael
- Roofers in San Rafael579 ranked
- Plumbers in San Rafael431 ranked
- Electricians in San Rafael316 ranked
- General contractors in San Rafael665 ranked
- Painters in San Rafael110 ranked
- Landscapers in San Rafael81 ranked
- Handymen in San Rafael56 ranked
- Kitchen remodelers in San Rafael254 ranked
- Bathroom remodelers in San Rafael251 ranked
- Flooring contractors in San Rafael160 ranked
- Tile installers in San Rafael32 ranked
- Drywall contractors in San Rafael16 ranked
- Concrete contractors in San Rafael152 ranked
- Fence contractors in San Rafael74 ranked
- Deck builders in San Rafael83 ranked
- Siding contractors in San Rafael89 ranked
- Window installers in San Rafael248 ranked
- Gutter installers in San Rafael99 ranked
- Insulation contractors in San Rafael59 ranked
- Solar installers in San Rafael226 ranked
- Garage door repair companies in San Rafael120 ranked
- Foundation repair companies in San Rafael105 ranked
- Tree services in San Rafael139 ranked
- Masonry contractors in San Rafael77 ranked
- Water damage restoration companies in San Rafael295 ranked
- Home builders in San Rafael348 ranked
- Demolition contractors in San Rafael77 ranked
- All contractors in San Rafael