Ranked #1 because of its Google rating and review volume: 4.8★ from 7,425 Google reviews, the most in Glen Avon.
- 4.8★ from 7,425 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5001 Ontario Mills Pkwy, Ontario, CA 91764
794 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Glen Avon: All Pro Cooling, Heating, Plumbing & Electrical, CR Score 66/100; 4.8★ from 7,425 Google reviews; open 24/7.
Best for emergencies (open 24/7): MSP HEATING AND AIR CONDITIONING, posts 24/7 hours; ranked #2 of 794.
Most-reviewed: All Pro Cooling, Heating, Plumbing & Electrical, 4,107 Google reviews at 4.7★, the most of 794 ranked after All Pro Cooling, Heating, Plumbing & Electrical; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
794 Glen Avon HVAC contractors are ranked here by CR Score, from ten published factors. 281 are open 24/7, 611 open Saturdays and 396 open Sundays, based on posted hours. The median Google rating is 4.9★ across 794 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | All Pro Cooling, Heating, Plumbing & Electrical | 66 | 4.8★ (7,425) | Ontario, 5 mi away | 24/7 | Overall |
| 2 | MSP HEATING AND AIR CONDITIONING | 65 | 5.0★ (1,203) | Jurupa Valley, 5 mi away | 24/7 | Emergencies |
| 3 | Plus Air Duct Testing | 64 | 5.0★ (401) | Jurupa Valley, 1 mi away | 24/7 | — |
| 4 | NexGen HVAC & Plumbing | 63 | 4.8★ (708) | Fontana, 3 mi away | 24/7 | — |
| 5 | All Pro Cooling, Heating, Plumbing & Electrical | 63 | 4.7★ (4,107) | Corona, 12 mi away | 24/7 | Most reviews |
| 6 | Ace Home Heating & Air Conditioning | 63 | 4.7★ (1,176) | Riverside, 5 mi away | 24/7 | — |
| 7 | Air One Air Conditioning, Heating, & Plumbing | 63 | 4.9★ (786) | Colton, 8 mi away | 24/7 | — |
| 8 | Friends & Family HVAC | 63 | 4.9★ (1,213) | Corona, 11 mi away | 24/7 | — |
| 9 | Airplus of California Inc. | 63 | 4.9★ (1,325) | Corona, 12 mi away | 24/7 | — |
| 10 | Absolute Airflow Air Conditioning, Heating and Plumbing | 63 | 4.8★ (571) | Riverside, 5 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 review volume: 4.8★ from 7,425 Google reviews, the most in Glen Avon.
Based in Jurupa Valley, 5 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 1,203 Google reviews, listed on Google as “HVAC contractor”.
Based in Jurupa Valley, 1 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 401 Google reviews, listed on Google as “HVAC contractor”.
Based in Fontana, 3 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 708 Google reviews, listed on Google as “HVAC contractor”.
Based in Corona, 12 mi away
Ranked #5 because of its Google rating and trade focus: 4.7★ from 4,107 Google reviews, listed on Google as “HVAC contractor”.
Based in Riverside, 5 mi away
Ranked #6 because of its Google rating and trade focus: 4.7★ from 1,176 Google reviews, listed on Google as “HVAC contractor”.
Based in Colton, 8 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 786 Google reviews, listed on Google as “HVAC contractor”.
Based in Corona, 11 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,213 Google reviews, listed on Google as “HVAC contractor”.
Based in Corona, 12 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,325 Google reviews, listed on Google as “HVAC contractor”.
Based in Riverside, 5 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 571 Google reviews, listed on Google as “HVAC contractor”.
Based in Corona, 13 mi away
Ranked #11 because of its Google rating and trade focus: 4.7★ from 3,741 Google reviews, listed on Google as “HVAC contractor”.
Based in Redlands, 14 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 1,159 Google reviews, listed on Google as “HVAC contractor”.
Based in Upland, 13 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 1,292 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Chino, 12 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 969 Google reviews, listed on Google as “Air conditioning repair service”.
Based in Riverside, 8 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 305 Google reviews, listed on Google as “HVAC contractor”.
Based in Montclair, 13 mi away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 977 Google reviews, listed on Google as “HVAC contractor”.
Based in Riverside, 9 mi away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 729 Google reviews, listed on Google as “HVAC contractor”.
Based in Riverside, 7 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 270 Google reviews, listed on Google as “HVAC contractor”.
Based in Redlands, 17 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 1,343 Google reviews, listed on Google as “HVAC contractor”.
Based in Rancho Cucamonga, 12 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 705 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Riverside, 1 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 286 Google reviews, listed on Google as “HVAC contractor”.
Based in Rancho Cucamonga, 7 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 201 Google reviews, listed on Google as “HVAC contractor”.
Based in Calimesa, 3 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 100 Google reviews, listed on Google as “HVAC contractor”.
Based in Riverside, 4 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 1,357 Google reviews, listed on Google as “HVAC contractor”.
Based in Corona, 11 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 306 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 794 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.C. DUDE | 5.0★ (2) | 7 mi |
| AAVCO Plumbing, Heating & Air Conditioning - Riverside | 5.0★ (2) | 9 mi |
| AC Comfort Heating and Air Conditioning | 5.0★ (2) | 7 mi |
| American Plumbing, Heating, Air & Electrical | 5.0★ (57) | 6 mi |
| Daniel Heating & Air Conditioning | 5.0★ (2) | 2 mi |
| Delta Tech Mechanical | 5.0★ (2) | 7 mi |
| E.G. HVAC & REFRIGERATION CO. | 5.0★ (2) | 6 mi |
| Family Plumbing Heating & Air Inc | In Glen Avon | |
| GOMEZ Air Conditioning, LLC | 1.0★ (2) | 8 mi |
| Interstate Air Quality | 5.0★ (2) | 8 mi |
| JD Johnson Heating And Air Inc. | 5.0★ (2) | 4 mi |
| Luke's Air Conditioning & Heating | 5.0★ (2) | 9 mi |
| Metz Air Control | 4.9★ (85) | 8 mi |
| MHC Commercial Air Conditioning Service | In Glen Avon | |
| Mr. Fix It | 2.0★ (2) | 6 mi |
| Orange Coast Plumbing | 4.9★ (764) | 20 mi |
| Pro Comfort Air Systems - Heating & Cooling Contractor | 1.0★ (2) | 7 mi |
| Synergy Mechanical Inc | 1.0★ (2) | 8 mi |
| The EG Energy Savers Air Conditioning & Heating | 4.0★ (2) | 6 mi |
| Westpoint Refrigeration | 3.0★ (2) | 2 mi |
National price ranges in USD, not adjusted for Glen Avon. 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 794 Glen Avon 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 Glen Avon 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 |