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List of HVAC contractors in Ontario, CA with emails and phone numbers
As of 5 Nov 2026, 67Leads lists 21 HVAC contractors in Ontario, CA. 1 (5%) have an email address read from the company's own website; none has been through the mail-server check yet.
Updated (the day rows in this list last changed). Counts as of 5 Nov 2026.
Get 67 leads freeNo card. Search is free with contacts masked. Opens a free search for the 21 HVAC contractors in Ontario, CA.
What these numbers mean
Email coverage here is 5%, below the 27% statewide. Expect to work more of this list by phone.
8 of the 21 companies (38%) have no website at all. That is usually the clearest sign a business is not being marketed to by anyone, which is either an opportunity or a warning depending on what you are selling.
None of the addresses in Ontario, CA have been through the mail-server check yet, so every one is labelled unverified. Verification runs continuously and this figure moves.
ZIP codes with the most HVAC contractors
21 of the 21 HVAC contractors in Ontario, CA list a ZIP code, spread over 3 ZIP codes. The 3 busiest hold 100% of those; 91761 alone has 11.
| ZIP code | HVAC contractors | Share |
|---|---|---|
| 91761 | 11 | 52% |
| 91762 | 8 | 38% |
| 91764 | 2 | 10% |
Sub-specialties by listing category
The largest listing category in Ontario is HVAC contractor, at 38%; 7 categories appear in all, and 1 businesses sit outside the 6 shown.
HVAC contractor is less common in Ontario (38%) than across California (55%).
| Listing category | Businesses | Share | Across California |
|---|---|---|---|
| HVAC contractor | 8 | 38% | 55% |
| Air conditioning contractor | 5 | 24% | 14% |
| Air conditioning repair service | 3 | 14% | 18% |
| Air conditioning system supplier | 2 | 10% | 1% |
| Auto radiator repair service | 1 | 5% | 0% |
| Heating contractor | 1 | 5% | 4% |
The category is the one each business chose on its public listing.
Ratings
71% in Ontario are rated 4.5 stars or higher, against 82% across California.
1 (5%) have no rating yet. Median reviews: 15 in Ontario, 15 across California.
| Rating | Businesses | Share | Across California |
|---|---|---|---|
| 4.8 to 5.0 | 13 | 62% | 72% |
| 4.5 to 4.7 | 2 | 10% | 9% |
| 4.0 to 4.4 | 2 | 10% | 6% |
| 3.0 to 3.9 | 2 | 10% | 3% |
| Under 3.0 | 1 | 5% | 1% |
| No rating yet | 1 | 5% | 9% |
Nearby cities
The closest city with its own list is Rancho Cucamonga, CA, about 5 miles away, with 31 HVAC contractors. Distances run between the median positions of each city's listings.
| City | Distance | HVAC contractors | With an email |
|---|---|---|---|
| Rancho Cucamonga, CA | 5 mi | 31 | 4 |
| Pomona, CA | 7 mi | 24 | 0 |
| Fontana, CA | 10 mi | 24 | 0 |
| Riverside, CA | 16 mi | 52 | 21 |
| San Bernardino, CA | 20 mi | 32 | 4 |
| Anaheim, CA | 21 mi | 54 | 22 |
| Fullerton, CA | 21 mi | 26 | 4 |
| Orange, CA | 22 mi | 33 | 4 |
A sample of HVAC contractors in Ontario, CA
| Company | Owner | Phone | City | |
|---|---|---|---|---|
| Macawsome Heating & Cooling | — | +1909333**** | c******@macawsome.com | Ontario |
| Diamond Air Services | — | +1909713**** | — | Ontario |
| United Refrigeration Inc | — | +1909974**** | — | Ontario |
| Magnison and Moen Inc | — | +1909947**** | — | Ontario |
| US Air Conditioning Distributors | — | +1909987**** | — | Ontario |
| Ontario Refrigeration Services Inc | — | +1909984**** | — | Ontario |
| Russell Sigler Inc | — | +1909390**** | — | Ontario |
| Air Control Systems Inc | — | +1909786**** | — | Ontario |
| A-1 Radiator & Air Conditioning | — | +1909984**** | — | Ontario |
| Ontario Heating & Air Conditioning | — | +1909347**** | — | Ontario |
| Ontario Air Conditioning & Heating | — | +1909318**** | — | Ontario |
| Air Temp Air Conditioning and Heating | — | +1320268**** | — | Ontario |
Contacts are masked until you export. Every email shown as verified was checked against the company's own mail server. Pricing · How the list is built
Free tools for this list
8 HVAC contractors in Ontario without a websitePreview the first 10Cold email templates for HVAC contractors
Guides for working this list
How to verify a lead list before you send a single emailHow to find businesses without websites, and sell them a siteAll guidesLead tool alternativesFree tools
Questions
67Leads currently lists 21 HVAC contractors in Ontario, CA, of which 17 are graded as a core match for the trade.
1 of the 21 HVAC contractors in Ontario, CA have an email address on file, collected from the company's own website rather than guessed from a pattern.
Not yet for Ontario, CA. Owner names are read from each company's own site, and none of these publish one we could confirm.
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Other trades in Ontario, CA
Dentists in Ontario (42)Roofing contractors in Ontario (31)Plumbers in Ontario (19)Electricians in Ontario (15)
HVAC contractors in other California cities
Los Angeles (79)San Diego (63)Anaheim (54)Oxnard (54)Fresno (53)Riverside (52)Sacramento (51)San Francisco (51)Pasadena (45)