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

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

2 contractors

1. Humboldt Insulation

   Eureka, CA · CSLB #1070669 · as of October 6, 2026
   Active · clear
2. Northcoast Acoustics

   Eureka, CA · CSLB #463191 · as of October 6, 2026
   Active · clear

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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.