Boiler, hot water heating and steam fitting contractors in Sonora, CA
2 licenses with the C-4 classification list Sonora (Tuolumne County) as their address with the state, 2 of them active. Active licenses with nothing flagged come first.
- Haycock Construction Inc Dba Alternative EnergyC-4 · C-46 · #632507 Sonora · Tuolumne County Active
- Optimized Plumbing & Piping IncC-4 · C-20 · C-36 · #982621 Sonora · Tuolumne County Active
Source: CSLB license file, Nov 8, 2026All trades in Sonora