Licensed plumbers in Mill Valley, CA
4 plumbing contractors with a CSLB C-36 license list a business address in Mill Valley (Marin 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 |
|---|---|---|---|
| Delta T Plumbing Website | (415) 419-4657 | 1122448 | 06/30/2028 |
| Dill Plumbing Company | (415) 991-9673 | 980312 | 01/31/2027 |
| Innovative Piping Systems | (650) 387-7682 | 728645 | 10/31/2028 |
| Zak Plumbing Co. Website | (415) 383-6317 | 654608 | 10/31/2028 |