Sanitation system contractors in Martinez, CA
3 licenses with the C-42 classification list Martinez (Contra Costa County) as their address with the state, 3 of them active. Active licenses with nothing flagged come first.
- Advanced Trenchless IncA · B · C-36 · C-42 · #971074 Martinez · Contra Costa County Active
- American Pipe Bursting LLCC-36 · C-42 · #1039462 Martinez · Contra Costa County Active
- Ernie'S Plumbing & Sewer ServiceC-36 · C-42 · #802333 Martinez · Contra Costa County Active
Source: CSLB license file, Nov 8, 2026All trades in Martinez