Insulation and acoustical contractors in Diamond Bar, CA

3 licenses with the C-2 classification list Diamond Bar (Los Angeles County) as their address with the state, 3 of them active. Active licenses with nothing flagged come first.

• ✓All About T-BarC-2 · #570421 Diamond Bar · Los Angeles County Active
• ✓Hammond Drywall ConstructionC-2 · C-9 · #956694 Diamond Bar · Los Angeles County Active
• ✓Light ContractingC-2 · #1122793 Diamond Bar · Los Angeles County Active

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