Sanitation system contractors in Napa, CA
4 licenses with the C-42 classification list Napa (Napa County) as their address with the state, 4 of them active. Active licenses with nothing flagged come first.
- Napa Septic Tank Service IncC-42 · #254028 Napa · Napa County Active
- P & R Septic Systems LLCC-42 · #482218 Napa · Napa County Active
- Rong'S Backhoe ServiceA · C-42 · #629852 Napa · Napa County Active
- Silverado Plumbing Inc Dba Mr Rooter PlumbingA · B · C-36 · C-42 · #511333 Napa · Napa County Active
Source: CSLB license file, Nov 8, 2026All trades in Napa