Licensed Plumbing (C-36) contractors in San Anselmo, CA

The California Contractors State License Board (CSLB) lists 5 Plumbing (C-36) contractors in San Anselmo, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

5 contractors

1. Grier Argall Plumbing INC

   San Anselmo, CA · CSLB #736901 · as of June 27, 2026
   Active · clear
2. Ian Dunne Plumbing

   San Anselmo, CA · CSLB #1048540 · as of June 27, 2026
   Active · clear
3. JBK Mechanical INC

   San Anselmo, CA · CSLB #448914 · as of June 27, 2026
   Active · clear
4. Mason Plumbing INC

   San Anselmo, CA · CSLB #817803 · as of June 27, 2026
   Active · clear
5. Wilson's Plumbing

   San Anselmo, CA · CSLB #623217 · 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.