63/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.9★ from 264 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 264 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3 37th Ave, San Mateo, CA 94403
Best HVAC Contractors in Belmont, CA (2026)
551 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Belmont: Fuse Service, CR Score 63/100; 4.9★ from 264 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Fuse service, posts 24/7 hours; ranked #2 of 551.
- 9
Most-reviewed: Jazz Heating, Air Conditioning and Plumbing, 3,438 Google reviews at 4.9★, the most of 551 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
551 Belmont HVAC contractors are ranked here by CR Score, from ten published factors. 151 are open 24/7, 368 open Saturdays and 306 open Sundays, based on posted hours. The median Google rating is 4.9★ across 551 rated businesses.
Top 10 HVAC contractors in Belmont at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Fuse Service | 63 | 4.9★ (264) | San Mateo, 1 mi away | 24/7 | Overall |
| 2 | Fuse service | 63 | 5.0★ (444) | Palo Alto, 8 mi away | 24/7 | Emergencies |
| 3 | Cabrillo Plumbing, Heating & Air | 63 | 5.0★ (208) | Menlo Park, 5 mi away | 24/7 | — |
| 4 | Heise's Plumbing | 62 | 4.9★ (1,454) | San Francisco, 17 mi away | 24/7 | — |
| 5 | Service Champions | 62 | 4.9★ (3,407) | San Jose, 22 mi away | 24/7 | — |
| 6 | Heating And Air Experts - Affordable HVAC Contractor in Fremont, California | 62 | 5.0★ (761) | Fremont, 17 mi away | 24/7 | — |
| 7 | Bell Brothers Plumbing Heating & Air - Hayward | 62 | 4.7★ (863) | Hayward, 11 mi away | 24/7 | — |
| 8 | Cabrillo Plumbing, Heating & Air | 62 | 4.9★ (966) | San Francisco, 17 mi away | 24/7 | — |
| 9 | Jazz Heating, Air Conditioning and Plumbing | 61 | 4.9★ (3,438) | Pleasanton, 25 mi away | 24/7 | Most reviews |
| 10 | Magic Plumbing Heating & Cooling | 61 | 4.9★ (1,876) | San Francisco, 15 mi away | Sat · Sun · Evenings | — |
The 551 best HVAC contractors in Belmont, 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.
#2 Fuse service
Based in Palo Alto, 8 mi away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 444 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 444 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 349 Everett Ave, Palo Alto, CA 94301
Based in Menlo Park, 5 mi away
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 208 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 208 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3511 Haven Ave, Menlo Park, CA 94025
Based in San Francisco, 17 mi away
62/100CR ScoreRanked #4 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 San Jose, 22 mi away
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 3,407 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 3,407 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2161 Del Franco St, San Jose, CA 95131
Based in Fremont, 17 mi away
62/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 761 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 761 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4991 Seneca Park Loop, Fremont, CA 94538
Based in Hayward, 11 mi away
62/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.7★ from 863 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 863 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3266 Investment Blvd, Hayward, CA 94545
Based in San Francisco, 17 mi away
62/100CR ScoreRanked #8 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 Pleasanton, 25 mi away
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 3,438 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 3,438 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2158 Rheem Dr, Pleasanton, CA 94588
Based in San Francisco, 15 mi away
61/100CR 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
Based in Fremont, 17 mi away
61/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 723 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 723 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4432 Enterprise St suite a, Fremont, CA 94538
#12 Belmont HVAC Pro
Based in Belmont
61/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 75 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 75 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2820 Hallmark Dr, Belmont, CA 94002
#13 Electric Air
Based in Redwood City, 5 mi away
61/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 72 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 72 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2684 Middlefield Rd Unit D, Redwood City, CA 94063
Based in Pleasanton, 23 mi away
61/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.8★ from 2,337 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 2,337 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7020 Commerce Dr, Pleasanton, CA 94588
Based in Hayward, 12 mi away
61/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.5★ from 1,252 Google reviews, listed on Google as “HVAC contractor”.
- 4.5★ from 1,252 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 24800 Industrial Blvd, Hayward, CA 94545
Based in Berkeley, 23 mi away
61/100CR ScoreRanked #16 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 Santa Clara, 21 mi away
61/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 1,034 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,034 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2222 Ronald St, Santa Clara, CA 95050
Based in San Jose, 23 mi away
61/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 1,466 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,466 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2210 Lundy Ave, San Jose, CA 95131
Based in San Ramon, 24 mi away
60/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 1,017 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 1,017 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 23 Beta Ct suite f, San Ramon, CA 94583
Based in Palo Alto, 10 mi away
60/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 145 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 145 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 209 California Ave, Palo Alto, CA 94306
Based in San Jose, 23 mi away
60/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 1,142 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,142 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1310 N 4th St, San Jose, CA 95112
Based in Hayward, 12 mi away
60/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.6★ from 474 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 474 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2616 Barrington Ct, Hayward, CA 94545
Based in Hayward, 12 mi away
60/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 172 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 172 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 27343 Industrial Blvd Suite H, Hayward, CA 94545
Based in Hayward, 12 mi away
60/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.5★ from 700 Google reviews, listed on Google as “HVAC contractor”.
- 4.5★ from 700 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3334 Arden Rd, Hayward, CA 94545
Based in South San Francisco, 11 mi away
60/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 369 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 369 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 317 Corey Way, South San Francisco, CA 94080
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 551 ranked HVAC contractors here; the rest are on their profiles.
Also serving Belmont
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 |
|---|---|---|
| Advanced H.V.A.C. Systems, Inc | 5.0★ (1) | In Belmont |
| ARS/ Rescue Rooter | 4.7★ (546) | 22 mi |
| Automatic Control Engineering | 4.5★ (2) | 13 mi |
| Bayside Heating & Air Conditioning, Inc. | 5.0★ (2) | 4 mi |
| C F Archibald Paving | 5.0★ (2) | 6 mi |
| Commercial Filter Services | 3.0★ (2) | 14 mi |
| Cosmos Electric Co | 3.0★ (2) | 15 mi |
| Excellent Repair | 4.8★ (43) | 9 mi |
| Furnace Man | 5.0★ (2) | 5 mi |
| Fuse Service | 4.9★ (273) | 22 mi |
| Gigaheat Comfort Solutions | In Belmont | |
| Hayward duct cleaning & dryer solution | 5.0★ (2) | 12 mi |
| Heating & Air Conditioning | 5.0★ (2) | 1 mi |
| Insulation & Air Duct Crew | 5.0★ (2) | 14 mi |
| Janal Heating & Air Conditioning | 5.0★ (2) | 5 mi |
| Pacific Coast Home Services | 4.4★ (735) | 23 mi |
| Restart HVAC & Electrical | 5.0★ (2) | 3 mi |
| Ron Williams Plumbing & Heating | 4.0★ (2) | 3 mi |
| Roofsky Air Duct Cleaning Service | 5.0★ (17) | 4 mi |
| The Clean Sky HVAC and Appliance Repair | 5.0★ (37) | 13 mi |
How much do HVAC contractors cost in Belmont?
National price ranges in USD, not adjusted for Belmont. 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 Belmont HVAC contractors
We scored 551 Belmont 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 Belmont 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 Belmont: frequently asked questions
Who is the best HVAC contractor in Belmont?
By CR Score, the highest-ranked HVAC contractor in Belmont, CA is Fuse Service with a CR Score of 63/100. It has 4.9★ from 264 Google reviews. It is open 24/7. Fuse service (#2) and Cabrillo Plumbing, Heating & Air (#3) follow. We ranked 551 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in Belmont?
ContractorsRanked ranks 551 HVAC contractors serving Belmont, CA. 2 of them are based in Belmont; 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 Belmont are open 24/7?
151 ranked HVAC contractors in Belmont post 24/7 hours. The highest-ranked are Fuse Service (#1), Fuse service (#2) and Cabrillo Plumbing, Heating & Air (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Belmont work on weekends?
368 of 551 ranked HVAC contractors post Saturday hours and 306 post Sunday hours. The highest-ranked open Saturdays are Fuse Service (#1), Fuse service (#2) and Cabrillo Plumbing, Heating & Air (#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 Belmont?
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 Belmont. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Belmont HVAC contractors have?
The median Google rating among 551 rated HVAC contractors in Belmont is 4.9★, with a median of 18 reviews. Jazz Heating, Air Conditioning and Plumbing has the most, 3,438 reviews, and ranks #9. 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 Belmont?
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 Belmont
- October 2026: CR Scores recalculated for 551 hvac contractors serving Belmont.
- October 2026: 5 duplicate listings merged.
More HVAC contractors and Belmont pages
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- Window installers in Belmont289 ranked
- Gutter installers in Belmont163 ranked
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- Solar installers in Belmont271 ranked
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