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

The California Contractors State License Board (CSLB) lists 12 Insulation & Acoustical (C-2) contractors in San Jose, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

12 contractors

1. Alpha HVAC & Electrical

   San Jose, CA · CSLB #1060833 · as of June 27, 2026
   Active · clear
2. Bay Area Insulation Services INC

   San Jose, CA · CSLB #1053575 · as of June 27, 2026
   Active · clear
3. Bay Weatherization & Insulation

   San Jose, CA · CSLB #777747 · as of June 27, 2026
   Active · clear
4. Richard Castellanos

   San Jose, CA · CSLB #356648 · as of June 27, 2026
   Active · clear
5. California Insulation Contractor INC DBA Central California

   San Jose, CA · CSLB #1018810 · as of June 27, 2026
   Active · clear
6. Ideal Attic Insulation INC

   San Jose, CA · CSLB #1095944 · as of June 27, 2026
   Active · clear
7. MGT Insulation INC

   San Jose, CA · CSLB #1128483 · as of June 27, 2026
   Active · clear
8. S B I Interiors INC

   San Jose, CA · CSLB #983778 · as of June 27, 2026
   Active · clear
9. Eric Stark Interiors INC

   San Jose, CA · CSLB #591877 · as of June 27, 2026
   Active · clear
10. Superior Insulation

    San Jose, CA · CSLB #1146932 · as of June 27, 2026
    Active · clear
11. HVAC Guru

    San Jose, CA · CSLB #1031326 · as of June 27, 2026
    Suspended · bond
12. M G Acoustics

    San Jose, CA · CSLB #812976 · as of June 27, 2026
    Suspended · bond

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Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.