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Licensed plumbers in Union City, CA
7 plumbing contractors with a CSLB C-36 license list a business address in Union City (Alameda County). A listing is not an endorsement.
Guides: Water heater installation in California · How to hire a plumber in California · What a C-36 plumbing license covers
Listings are CSLB C-36 Plumbing licences in the file downloaded November 4, 2026. Confirm a license is current on the CSLB license check before hiring.
| Business | Phone | Website | License # | Expires |
|---|---|---|---|---|
| Cal-Tech Plumbing Co. | (510) 648-6884 | — | 951321 | 08/31/2028 |
| New Leaf Plumbing & Drains LLC | (510) 461-5595 | — | 1141732 | 08/31/2027 |
| Next Level Plumbing Services | (650) 532-4866 | — | 1084094 | 11/30/2027 |
| Plumbing Connection | (510) 377-3341 | — | 944509 | 07/31/2028 |
| Plumbing Masters | (510) 489-2999 | — | 781743 | 07/31/2028 |
| Power Plumbing & Rooter | (510) 584-7693 | — | 1082507 | 10/31/2027 |
| Qualified Plumbers Services Inc. | (510) 471-2373 | — | 884105 | 09/30/2028 |