Boiler, hot water heating and steam fitting contractors in San Mateo, CA

3 licenses with the C-4 classification list San Mateo (San Mateo County) as their address with the state, 3 of them active. Active licenses with nothing flagged come first.

• ✓Cary Wing Plumbing & Fire Protection IncC-4 · C-16 · C-20 · C-36 · #815871 San Mateo · San Mateo County Active
• ✓J W McClenahan CoC-4 · C-20 · C-36 · C-42 +1 · #308818 San Mateo · San Mateo County Active
• ✓Lindstrom CoB · C-4 · C-20 · C-36 · #244500 San Mateo · San Mateo County Active

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