Sanitation system contractors in San Marcos, CA

2 licenses with the C-42 classification list San Marcos (San Diego County) as their address with the state, 2 of them active. Active licenses with nothing flagged come first.

• ✓A Local Plumber IncC-36 · C-42 · #1159128 San Marcos · San Diego County Active
• ✓Waterwerx IncC-42 · #1118115 San Marcos · San Diego County Active

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