Sanitation system contractors in Walnut, CA

1 licenses with the C-42 classification list Walnut (Los Angeles County) as their address with the state, 1 of them active. Active licenses with nothing flagged come first.

• ✓Gabriel Frausto Underground Construction IncA · C-42 · #1040416 Walnut · Los Angeles County Active

Source: CSLB license file, Nov 8, 2026All trades in Walnut