Public CSLB records

Timbrell Clayton & CO, B General Building Contractor in San Francisco, CA

License #897643·Corporation·San Francisco, San Francisco County
Download PDF
Owed money by Timbrell Clayton & CO? File a 20-day preliminary notice to keep your lien rights.Send a notice
Summary

Timbrell Clayton & CO operating as a corporation holds an active California contractor license (CSLB #897643), valid through Apr 30, 2028. First issued in 2007, the license has been on the CSLB roster for 19 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Sentinel Insurance Company LTD. The business is based in San Francisco, in San Francisco County, California.

Business Information
Address
1157 Post Street
San Francisco, CA 94109
License Details & Classifications
License Number
897643
Issued
Jun 1, 2007
Status
CLEAR
Expires
Apr 30, 2028
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
100654578
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Sentinel Insurance Company LTD
Policy Number
57WEABL2EFR
Effective
Nov 1, 2025
Expires
Nov 1, 2026
Verified

This contractor is verified, with no adverse conditions in the current CSLB record.

License StatusActive
Contractor BondOn file
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Timbrell Clayton & CO licensed in California?

Yes. Timbrell Clayton & CO holds California Contractors State License Board license number 897643, which is active and in good standing. The license was first issued on June 1, 2007. It is valid through April 30, 2028.

What does Timbrell Clayton & CO specialize in?

Timbrell Clayton & CO is licensed for one CSLB classification: B General Building Contractor.

Where is Timbrell Clayton & CO headquartered?

Timbrell Clayton & CO is headquartered at 1157 Post Street, San Francisco, CA 94109, in San Francisco County, California.

Does Timbrell Clayton & CO have an active surety bond on file with CSLB?

Yes. Timbrell Clayton & CO has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Timbrell Clayton & CO carry workers' compensation coverage?

Yes. Timbrell Clayton & CO carries active workers' compensation coverage through Sentinel Insurance Company LTD.

How do I verify Timbrell Clayton & CO's contractor license?

You can verify Timbrell Clayton & CO's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=897643.

Activity Timeline
  1. License issuedJun 1, 2007
  2. Bond activeJan 1, 2023
  3. WC coverage startsNov 1, 2025
  4. WC expiresNov 1, 2026
  5. License expiresApr 30, 2028
Other contractors in San Francisco County
California lien & payment resources

Working a California job with Timbrell Clayton & CO, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

Own Timbrell Clayton & CO? Claim or correct this profile