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MILL VALLEY BUILDERS INC

License #957090Mill ValleyCorporationLicensed since January 27, 2011

License

Status
CLEAR
First issued
January 27, 2011
Expires
January 31, 2027
Entity
Corporation
Address of record
240 REDWOOD HWY STE 5, Mill Valley, CA 94941
Phone of record
(415) 328 7069

Contractor bond

Surety
PHILADELPHIA INDEMNITY INSURANCE COMPANY
Bond number
PB10163412249
Amount
$25,000
Effective
June 29, 2026

Workers’ compensation

Carrier
BENCHMARK INSURANCE COMPANY
Policy number
99WC0000373502
Effective
December 16, 2025
Expires
December 16, 2026

Are they licensed for your job?

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Licensed to perform

A contractor may only contract for work within their classifications.

People on this license

NameTitleSinceThrough
CHARLES RICHARD COSMOResponsible Managing Officer/Chief Executive Officer/PresidentJanuary 27, 2011Current
CHARLES RICHARD COSMOResponsible Managing Officer/Chief Executive Officer/PresidentOctober 9, 2017Current
CHARLES HEIDI NANETTEOfficerOctober 9, 2017October 9, 2017
CHARLES HEIDI NANETTEResponsible Managing OfficerAugust 14, 2017October 9, 2017
CHARLES RICHARD COSMOResponsible Managing Officer/Chief Executive Officer/PresidentJanuary 27, 2011August 14, 2017

Verified status badge

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MILL VALLEY BUILDERS INC — California contractor license #957090 status, verified against CSLB records
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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.