California contractor license
D BENJAMIN CAHN
- A General Engineering
- C16 Fire Protection
- C36 Plumbing
D BENJAMIN CAHN is an A General Engineering, C16 Fire Protection and C36 Plumbing contractor in Mill Valley, Marin County, licensed in California for 43 years (since 1983). As of Aug 29, 2025, the license is active with an expiration date of May 31, 2027 on record and a license bond is on file.
D BENJAMIN CAHNA General Engineering · C16 Fire Protection · C36 Plumbing · checked Aug 29, 2025
ActiveLicense number#440082
Licensed sinceMay 13, 1983
Years licensed43 years
Expiration on recordMay 31, 2027
City and countyMill Valley, Marin County
License bondOn file
ProjectsNone on file
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Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated Aug 29, 2025.