| Company | Location | Certifications | License # |
|---|---|---|---|
| Canbys Acs Inc | Tulare, CA | Installer (C-42) | 343787 |
| Don'S Septic Tank Service | Porterville, CA | Installer (C-42) | 956539 |
| First Class Plumbing Co | Three Rivers, CA | Installer (C-42) | 862790 |
| Levin Morris And Son | Tulare, CA | Installer (C-42) | 167881 |
| Mls Plumbing Hvac Electrical | Tulare, CA | Installer (C-42) | 1120976 |
| Odell'S Pump & Motor | Visalia, CA | Installer (C-42) | 826935 |
| Parker & Parker Plumbing | Visalia, CA | Installer (C-42) | 463753 |
| Quik Plumbing & Construction Co | Porterville, CA | Installer (C-42) | 1003622 |
| Ryan'S Plumbing | Visalia, CA | Installer (C-42) | 1003740 |
| Sierra Plumbing | Porterville, CA | Installer (C-42) | 953083 |
| Tulare County Septic Tank | Tulare, CA | Installer (C-42) | 472558 |
11 companies in the CSLB Licensed C-42 Sanitation System Contractors are based in Tulare County as of 2026-07-23. Companies based elsewhere in California also commonly serve the county.
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