--- title: "50 HVAC contractors in Ontario, California — Emails & phone numbers" description: "There are 50 HVAC contractors in Ontario as of 13 August 2026. 47 phone numbers, 8 emails, 36 websites. Preview free, download CSV." url: "https://listvista.com/hvac-contractors/ontario-california/" language: "en" updated: "2026-08-13" license: "https://listvista.com/terms/" --- # 50 HVAC contractors in Ontario, California _Scanned 13 August 2026_ There are 50 HVAC contractors in Ontario as of 13 August 2026. The average rating is 4.7 across 34 rated records. > **Citing these figures** — These counts may be quoted, in full or in part, with a link to this page. Please quote the scan date with the number: the count changes at every refresh. ## Key figures | Field | Records | Share of 50 | | --- | ---: | ---: | | Total businesses | 50 | 100% | | With phone | 47 | 94% | | With website | 36 | 72% | | With email | 8 | 16% | | With social link | 16 | 32% | ## Download the full list - **Price:** **$4.50** - **Per record:** $0.09 - **Records:** 50 - **Formats:** CSV, Excel, JSON, GeoJSON, KML [Buy this dataset](https://listvista.com/pricing/) ## List of HVAC contractors in Ontario The rows are ordered by review count, most first: All Pro Cooling, Heating, Plumbing & Electrical in Ontario leads with 8,568 reviews. This page shows which contact fields each record has, not the contacts themselves. The full file has them. | Business | City | Region | Rating | Reviews | Phone | Email | Website | Socials | | --- | --- | --- | ---: | ---: | --- | --- | --- | --- | | All Pro Cooling, Heating, Plumbing & Electrical | Ontario | California | 4.80 | 8,568 | ✓ | ✓ | ✓ | YouTube, Facebook, LinkedIn, Instagram | | NexGen HVAC & Plumbing | Ontario | California | 4.70 | 589 | ✓ | — | ✓ | X, YouTube, Facebook, LinkedIn, Instagram | | Diamond Air Services | Ontario | California | 5 | 418 | ✓ | — | ✓ | — | | Northstar Plumbing, Heating and Air Conditioning | Ontario | California | 4.70 | 336 | ✓ | ✓ | ✓ | YouTube, Facebook, LinkedIn, Instagram | | SIMS Comfort Solutions | Ontario | California | 5 | 261 | ✓ | — | ✓ | — | | Sears Appliance Repair | Ontario | California | 4.60 | 243 | ✓ | — | ✓ | X, YouTube, Facebook, Instagram | | Macawsome Heating & Cooling | Ontario | California | 4.80 | 173 | ✓ | ✓ | ✓ | X, YouTube, Facebook, LinkedIn, Instagram | | United Refrigeration Inc | Ontario | California | 4.40 | 62 | ✓ | — | ✓ | — | | Magnison and Moen Inc | Ontario | California | 4.90 | 44 | ✓ | — | ✓ | — | | DVK Service inc | Ontario | California | 5 | 32 | ✓ | — | ✓ | YouTube | Showing 10 of 50 rows 40 more records are in the full file — every phone, email and social link included. ## HVAC contractors by postal code in Ontario 91761 has the most, with 20, then 91762 (11) and 91764 (6). A postal code has no page of its own — it is a targeting unit, not a place we count separately. Records with no code on file are listed as their own row. | # | Postal code | Records | Share of 50 | Phone numbers | Email addresses | Websites | Social links | | ---: | --- | ---: | ---: | ---: | ---: | ---: | ---: | | 1 | 91761 | 20 | 40% | 20 | 6 | 16 | 9 | | 2 | 91762 | 11 | 22% | 9 | 1 | 6 | 3 | | 3 | 91764 | 6 | 12% | 5 | 0 | 3 | 0 | | | All other postal codes | 13 | 26% | 13 | 1 | 11 | 4 | | | **Ontario** | **50** | 100% | **47** | **8** | **36** | **16** | ## Ratings 34 of the 50 HVAC contractors in Ontario publish a rating — 68%. The split below comes from the same scan as the list. - **Average rating:** 4.7 ★ | Records per star band | Records | Share of 34 | | --- | ---: | ---: | | 5 ★ | 26 | 76% | | 4 ★ | 7 | 21% | | 3 ★ | 1 | 3% | | 2 ★ | 0 | 0% | | 1 ★ | 0 | 0% | ## Reviews 34 rated HVAC contractors in Ontario carry about 10,951 reviews in total, an average of 322 per listing. | Records per review band | Records | Share of 34 | | --- | ---: | ---: | | 1-10 reviews | 15 | 44% | | 11-50 reviews | 11 | 32% | | 51-200 reviews | 2 | 6% | | 200+ reviews | 6 | 18% | ## Social coverage 16 HVAC contractors in Ontario carry at least one social link — 32% of the file. The split by network is below; a record can carry several. | Records per network | Records | Share of 16 | | --- | ---: | ---: | | Facebook | 14 | 88% | | Instagram | 11 | 69% | | YouTube | 10 | 63% | | LinkedIn | 7 | 44% | | X | 5 | 31% | ## Phone line types The 47 phone numbers in Ontario, split by line type. From the same scan as the list. | Records per line type | Records | Share of 50 | | --- | ---: | ---: | | Mobile or landline | 44 | 88% | | Toll-free | 3 | 6% | | No phone | 3 | 6% | ## Field completeness 47 of the 50 records carry a phone number, 36 a website, 8 an email address and 16 a social link. The gaps are shown as they are. A missing field is never filled with a guess. | Records per field | Records | Share of 50 | | --- | ---: | ---: | | Business | 50 | 100% | | City | 50 | 100% | | Phone | 47 | 94% | | Website | 36 | 72% | | Email | 8 | 16% | | Socials | 16 | 32% | ## Data source and method Every number on this page comes from one scan of public local business listings in Ontario, taken on 13 August 2026. Nothing is estimated and no empty field is filled with a guess. - **Source:** Public local business listings, read city by city on a fixed schedule. - **Counting rule:** One record is one physical location. A chain with eleven depots is eleven records, not one. A business is counted in HVAC contractors when that is its primary listed activity, not when it merely mentions it. - **Scanned:** 13 August 2026 - **Compiled by:** Yassine Belatar, lead data analyst — hello@listvista.com [How we count, in full](https://listvista.com/method/) ## Questions about this dataset ### How many HVAC contractors are there in Ontario? There are 50 HVAC contractors in Ontario as of 13 August 2026. ### Which postal code has the most HVAC contractors in Ontario? 91761 has the most, with 20 of the 50 HVAC contractors in Ontario, then 91762 (11) and 91764 (6). ### What is the average rating of HVAC contractors in Ontario? 4.7 out of 5, across the 34 HVAC contractors in Ontario that publish a rating. ### How many HVAC contractors in Ontario are rated 5 stars? 26 sit in the 5-star band and 7 in the 4-star band, out of the 34 HVAC contractors in Ontario that publish a rating. ### Which social networks do HVAC contractors in Ontario use? Facebook (14), Instagram (11), YouTube (10) and LinkedIn (7). 16 carry at least one social link, which is 32% of the file. ### How many HVAC contractors in Ontario have a website? 36 of 50 HVAC contractors in Ontario list a website — 72%. 47 list a phone number and 8 list an email address. ### How many HVAC contractors in Ontario have no website? 14 of the 50 HVAC contractors in Ontario list no website — 28%. The file marks the field empty rather than guessing one. ### How many HVAC contractors in Ontario can be contacted directly? 47 records carry at least a phone number, which is 94% of the 50 in the file. ### How recent is this data? The list was scanned on 13 August 2026. Every number on this page carries that date, and it moves only when the list is scanned again. ### What does the HVAC contractors list in Ontario include? Business name, address, city, region, phone, email, website, social links, rating and review count — 50 records, in CSV, Excel, JSON, GeoJSON and KML. ## Other categories in Ontario - [Car dealers — Ontario](https://listvista.com/car-dealers/ontario-california/) · 91 [All HVAC contractors in California](https://listvista.com/hvac-contractors/california/) --- ListVista — https://listvista.com/ · All counts on this site carry the date they were taken.