| Company | Location | Certifications | License # |
|---|---|---|---|
| Concrete Unlimited | Susanville, CA | Installer (C-42) | 786882 |
| Eagle Lake Construction | Susanville, CA | Installer (C-42) | 891767 |
| Harlans Bobcat/B-Hoe Service | Janesville, CA | Installer (C-42) | 852760 |
| J M H Construction Services Inc | Janesville, CA | Installer (C-42) | 917787 |
| Pee Wee Enterprises | Susanville, CA | Installer (C-42) | 859334 |
| Silkwood Septic Llc | Susanville, CA | Installer (C-42) | 1066876 |
| Stoneco Construction Inc | Susanville, CA | Installer (C-42) | 517925 |
| Turner Excavating Inc | Lake Almanor, CA | Installer (C-42) | 667295 |
| Womack Construction | Lake Almanor, CA | Installer (C-42) | 463119 |
9 companies in the CSLB Licensed C-42 Sanitation System Contractors are based in Lassen County as of 2026-07-23. Companies based elsewhere in California also commonly serve the county.
Tell us what you need — we'll connect you with state-certified companies serving your area. No obligation.