Licensed Insulation & Acoustical (C-2) contractors in Corona, CA

The California Contractors State License Board (CSLB) lists 6 Insulation & Acoustical (C-2) contractors in Corona, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of October 6, 2026.

6 contractors

1. Excel Acoustics INC

   Corona, CA · CSLB #724511 · as of October 6, 2026
   Active · clear
2. Preferred Firestopping INC

   Corona, CA · CSLB #965711 · as of October 6, 2026
   Active · clear
3. Preferred Insulation Contractors INC

   Corona, CA · CSLB #824373 · as of October 6, 2026
   Active · clear
4. Premier Acoustics INC

   Corona, CA · CSLB #949939 · as of October 6, 2026
   Active · clear
5. West Coast Insulation

   Corona, CA · CSLB #774147 · as of October 6, 2026
   Active · clear
6. Mechanical Innovative Technologies INC

   Corona, CA · CSLB #1136916 · as of October 6, 2026
   Suspended · bond

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Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.