Licensed plumbers in Humboldt County, CA
44 plumbing contractors with a CSLB C-36 license list a business address in Humboldt County. How to confirm a license.
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.
Cities in Humboldt County
Other listings in Humboldt County
| Business | City | Phone | License # | Expires |
|---|---|---|---|---|
| Cal Plumbing & Fire Suppression Inc. | Blue Lake | (707) 499-2631 | 1053006 | 04/30/2027 |
| Caledonia Plumbing | Carlotta | (707) 845-1242 | 802567 | 12/31/2027 |
| Humboldt Plumbing | Cutten | (707) 498-5387 | 1100261 | 01/31/2027 |
| Kenneth G Fleck Plumbing | Cutten | (707) 496-9988 | 1079262 | 08/31/2027 |
| Murray Plumbing | Hydesville | (707) 496-5315 | 892506 | 03/31/2027 |
| Woodsy Plumbing | Kneeland | (707) 498-4268 | 908396 | 12/31/2027 |
| Coast To Coast Plumbing | Loleta | (707) 296-6804 | 1121163 | 05/31/2028 |
| Mortimer Plumbing Construction Inc. | Mc Kinleyville | (707) 839-9111 | 512576 | 04/30/2027 |
| Northwest Plumbing Solutions LLC Website | Mc Kinleyville | (369) 226-9660 | 1147550 | 12/31/2027 |
| Keefe Plumbing | Miranda | (707) 223-3392 | 881670 | 07/31/2028 |