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List of plumbers in Ontario, CA with emails and phone numbers
As of 5 Nov 2026, 67Leads lists 19 plumbers in Ontario, CA. 5 (26%) 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 19 plumbers in Ontario, CA.
What these numbers mean
Email coverage is 26%, in line with the 28% across the state.
2 have no website (11%), so most of this list has some web presence to research before you call.
Only 1 of these name an owner. Owner names are read from the company's own site rather than guessed, so coverage varies sharply by how much these businesses publish.
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 plumbers
19 of the 19 plumbers in Ontario, CA list a ZIP code, spread over 3 ZIP codes. The 3 busiest hold 100% of those; 91761 alone has 9.
| ZIP code | Plumbers | Share |
|---|---|---|
| 91761 | 9 | 47% |
| 91762 | 9 | 47% |
| 91764 | 1 | 5% |
Sub-specialties by listing category
The largest listing category in Ontario is Plumber, at 79%; 4 categories appear in all.
Plumber is less common in Ontario (79%) than across California (86%).
| Listing category | Businesses | Share | Across California |
|---|---|---|---|
| Plumber | 15 | 79% | 86% |
| HVAC contractor | 2 | 11% | 6% |
| Heating equipment supplier | 1 | 5% | 0% |
| Septic system service | 1 | 5% | 2% |
The category is the one each business chose on its public listing.
Ratings
89% in Ontario are rated 4.5 stars or higher, against 91% across California.
0 (0%) have no rating yet. Median reviews: 64 in Ontario, 68 across California.
| Rating | Businesses | Share | Across California |
|---|---|---|---|
| 4.8 to 5.0 | 14 | 74% | 77% |
| 4.5 to 4.7 | 3 | 16% | 13% |
| 4.0 to 4.4 | 0 | 0% | 6% |
| 3.0 to 3.9 | 1 | 5% | 2% |
| Under 3.0 | 1 | 5% | 0% |
| No rating yet | 0 | 0% | 1% |
Nearby cities
The closest city with its own list is Rancho Cucamonga, CA, about 5 miles away, with 36 plumbers. Distances run between the median positions of each city's listings.
| City | Distance | Plumbers | With an email |
|---|---|---|---|
| Rancho Cucamonga, CA | 5 mi | 36 | 9 |
| Fontana, CA | 11 mi | 23 | 4 |
| Corona, CA | 12 mi | 36 | 6 |
| Riverside, CA | 15 mi | 66 | 20 |
| Anaheim, CA | 19 mi | 51 | 24 |
| San Bernardino, CA | 20 mi | 16 | 4 |
| Fullerton, CA | 21 mi | 32 | 6 |
| Orange, CA | 21 mi | 29 | 3 |
A sample of plumbers in Ontario, CA
| Company | Owner | Phone | City | |
|---|---|---|---|---|
| Regal Plumbing & Rooter | Nick M. | +1909600**** | i***@regalplumbingservices.com | Ontario |
| High speed rooter & plumbing | — | +1213949**** | s****@1hsrplumbing.com | Ontario |
| Royalty Plumbing and Drain | — | +1909942**** | c****@royalty-plumbing.com | Ontario |
| Northstar Plumbing, Heating and Air Conditioning | — | +1909593**** | i***@northstarcares.com | Ontario |
| AMZ Plumbing Inc | — | +1909708**** | i***@amzplumbingca.com | Ontario |
| Roto-Rooter Plumbing & Water Cleanup | — | +1909546**** | — | Ontario |
| NexGen HVAC & Plumbing | — | +1909487**** | — | Ontario |
| Showtime Family Plumbing and Rooter, Inc | — | +1909341**** | — | Ontario |
| American Standard Water Heaters | — | +1800900**** | — | Ontario |
| Plumbers Hub LLC | — | +1626626**** | — | Ontario |
| Hometown Plumbing Services | — | +1909442**** | — | Ontario |
| RN & SONS PLUMBING & CONSTRUCTION INC | — | +1909761**** | — | 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
2 plumbers in Ontario without a websitePreview the first 10Cold email templates for plumbers
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 siteHow to find the owner's name of a small local businessAll guidesLead tool alternativesFree tools
Questions
67Leads currently lists 19 plumbers in Ontario, CA, of which 17 are graded as a core match for the trade.
5 of the 19 plumbers in Ontario, CA have an email address on file, collected from the company's own website rather than guessed from a pattern.
1 of the 19 records in Ontario, CA include a named owner rather than only a company name.
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Other trades in Ontario, CA
Dentists in Ontario (42)Roofing contractors in Ontario (31)HVAC contractors in Ontario (21)Electricians in Ontario (15)
Plumbers in other California cities
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