Boiler, hot water heating and steam fitting contractors in Pasadena, CA

5 licenses with the C-4 classification list Pasadena (Los Angeles County) as their address with the state, 5 of them active. Active licenses with nothing flagged come first.

• ✓Acco Engineered SystemsA · B · C-4 · C-10 +5 · #120696 Pasadena · Los Angeles County Active
• ✓Acco-Wilson, IncB · C-4 · C-10 · C-16 +6 · #1042403 Pasadena · Los Angeles County Active
• ✓Aes Industrial IncA · B · C-4 · C-20 +3 · #1049754 Pasadena · Los Angeles County Active
• ✓Air Conditioning Company IncB · C-4 · C-10 · C-20 +2 · #819862 Pasadena · Los Angeles County Active
• ✓Geo H Wilson Mechanical ContractorsB · C-4 · C-10 · C-16 +6 · #950443 Pasadena · Los Angeles County Active

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