1,024 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Claremont: Steve's Five Star Service, CR Score 65/100; 4.9★ from 1,292 Google reviews; open 24/7.
Best for emergencies (open 24/7): All Pro Cooling, Heating, Plumbing & Electrical, posts 24/7 hours; ranked #2 of 1,024.
Most-reviewed: All Pro Cooling, Heating, Plumbing & Electrical, 7,425 Google reviews at 4.8★, the most of 1,024 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
1,024 Claremont HVAC contractors are ranked here by CR Score, from ten published factors. 359 are open 24/7, 783 open Saturdays and 537 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,024 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Steve's Five Star Service | 65 | 4.9★ (1,292) | Upland, 2 mi away | 24/7 | Overall |
| 2 | All Pro Cooling, Heating, Plumbing & Electrical | 65 | 4.8★ (7,425) | Ontario, 10 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Klaus & Sons Plumbing, Heating & Air Conditioning | 65 | 4.9★ (977) | Montclair, 2 mi away | 24/7 | — |
| 4 | Rooter Hero Plumbing & Air | 64 | 4.8★ (802) | Montclair, 1 mi away | 24/7 | — |
| 5 | Metz Air Control | 64 | 4.9★ (969) | Chino, 7 mi away | 24/7 | — |
| 6 | RC Air Heating & Air Conditioning Service | 63 | 4.9★ (705) | Rancho Cucamonga, 6 mi away | 24/7 | — |
| 7 | Service Hero Plumbing, HVAC, and Electrical | 63 | 4.8★ (1,506) | Covina, 9 mi away | 24/7 | — |
| 8 | Western Air Mechanical | 62 | 4.9★ (251) | San Dimas, 5 mi away | 24/7 | — |
| 9 | Turbo Plus Appliance Repair Service | 62 | 5.0★ (80) | Claremont | 24/7 | — |
| 10 | Inland Pacific Air Conditioning | 62 | 5.0★ (143) | Upland, 4 mi away | 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 1,292 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Ontario, 10 mi away
Ranked #2 because of its Google rating and review volume: 4.8★ from 7,425 Google reviews, the most in Claremont.
Based in Montclair, 2 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 977 Google reviews, listed on Google as “HVAC contractor”.
Based in Montclair, 1 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 802 Google reviews, listed on Google as “HVAC contractor”.
Based in Chino, 7 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 969 Google reviews, listed on Google as “Air conditioning repair service”.
Based in Rancho Cucamonga, 6 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 705 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Covina, 9 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 1,506 Google reviews, listed on Google as “HVAC contractor”.
Based in San Dimas, 5 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 251 Google reviews, listed on Google as “HVAC contractor”.
Based in Claremont
Ranked #9 because of its Google rating and trade focus: 5.0★ from 80 Google reviews, listed on Google as “HVAC contractor”.
Based in Upland, 4 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 143 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Corona, 16 mi away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 1,325 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 18 mi away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 2,813 Google reviews, listed on Google as “HVAC contractor”.
Based in Corona, 16 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 1,213 Google reviews, listed on Google as “HVAC contractor”.
Based in Jurupa Valley, 20 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 1,203 Google reviews, listed on Google as “HVAC contractor”.
Based in Chino, 6 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 392 Google reviews, listed on Google as “HVAC contractor”.
Based in Brea, 15 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 6,978 Google reviews, listed on Google as “HVAC contractor”.
Based in San Dimas, 6 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 122 Google reviews, listed on Google as “HVAC contractor”.
Based in Corona, 20 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 4,107 Google reviews, listed on Google as “HVAC contractor”.
Based in Ontario, 6 mi away
Ranked #19 because of its Google rating and trade focus: 4.6★ from 507 Google reviews, listed on Google as “HVAC contractor”.
Based in Fontana, 12 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 708 Google reviews, listed on Google as “HVAC contractor”.
Based in Rancho Cucamonga, 10 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 201 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 17 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 995 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 17 mi away
Ranked #23 because of its Google rating and trade focus: 4.7★ from 2,250 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 17 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 1,899 Google reviews, listed on Google as “HVAC contractor”.
Based in Jurupa Valley, 15 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 401 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 1,024 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 |
|---|---|---|
| 3DAYS HVAC | In Claremont | |
| Absolute Airflow Air Conditioning, Heating and Plumbing | 4.8★ (571) | 19 mi |
| Accurate Electric, Plumbing, Heating and Air | 4.9★ (69) | 6 mi |
| Air Control Contractor, Heating and Air Conditioning | In Claremont | |
| AIR NOW HEATING & COOLING INC | 5.0★ (81) | 11 mi |
| Alosta Plumbing, Heating & Air Conditioning | 5.0★ (2) | In Claremont |
| Cal Cool Construction & Supply CSLB#678290 | In Claremont | |
| Claremont HVAC & Comfort Air Zone AC - Heating Repair Service | In Claremont | |
| Cooling & Heating Repair | 4.8★ (402) | 17 mi |
| Liberty Air | 5.0★ (2) | 6 mi |
| M.A. Ogg Heating & Air Conditioning, Inc. | 3.0★ (2) | 1 mi |
| Meza's Hvac | 5.0★ (2) | 5 mi |
| N & S Heating, Air Conditioning & Electrical | 4.5★ (2) | 4 mi |
| NexGen HVAC & Plumbing | 4.7★ (538) | 16 mi |
| Option One HVAC | 5.0★ (1) | In Claremont |
| Prime Cooling & Heating | 5.0★ (1) | In Claremont |
| Professional Heating & Air | 3.0★ (2) | 5 mi |
| Sinclair Air Systems | 4.7★ (35) | 3 mi |
| West-Tech Mechanical Inc | 3.0★ (2) | 3 mi |
| Xpress heating and air | In Claremont |
National price ranges in USD, not adjusted for Claremont. 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 1,024 Claremont 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 23, 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 Claremont 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 |