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Licensed plumbers in Duarte, CA
8 plumbing contractors with a CSLB C-36 license list a business address in Duarte (Los Angeles 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 | License # | Expires |
|---|---|---|---|
| Contract Plumbing Co. | (626) 824-9356 | 1063930 | 03/31/2028 |
| Drain Flow Solutions & Plumbing Website | (626) 394-3852 | 1089357 | 04/30/2028 |
| Dun - Well Plumbing & Drains Inc. | (626) 732-4581 | 802677 | 01/31/2028 |
| Er Repipe | (818) 422-9169 | 1132539 | 02/28/2027 |
| Gregory Retzepis DBA GR Plumbing & Heating | (626) 357-5288 | 492976 | 06/30/2028 |
| Neal's Plumbing | (626) 303-6454 | 881377 | 07/31/2028 |
| Priority Plumbing Service Inc. | (323) 947-8518 | 1008958 | 11/30/2027 |
| Smart Choice Rooter Inc. Website | (626) 361-8237 | 1125828 | 08/31/2028 |