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

The California Contractors State License Board (CSLB) lists 3 Insulation & Acoustical (C-2) contractors in Walnut Creek, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

3 contractors

1. Dvoskin Alon

   Walnut Creek, CA · CSLB #1101431 · as of June 27, 2026
   Active · clear
2. Miller Attics

   Walnut Creek, CA · CSLB #1150503 · as of June 27, 2026
   Active · clear
3. Nor - Cal Acoustics

   Walnut Creek, CA · CSLB #998459 · as of June 27, 2026
   Active · clear

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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.