Public CSLB records

Thiel Clark T, B General Building Contractor in Piedmont, CA

License #828605·Sole Owner·Piedmont, Alameda County
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Summary

Thiel Clark T operating as a sole owner holds an active California contractor license (CSLB #828605), valid through Dec 31, 2027. First issued in 2003, the license has been on the CSLB roster for 23 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in Piedmont, in Alameda County, California.

Business Information
Address
622 Blair Avenue
Piedmont, CA 94611
License Details & Classifications
License Number
828605
Issued
Dec 17, 2003
Status
CLEAR
Expires
Dec 31, 2027
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
Western Surety Company
Bond Number
66828976
Effective
Feb 18, 2024
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
Policy Number
Effective
Nov 28, 2025
Expires
Review

This contractor warrants a closer look before contracting:

  • Workers' comp listed as exempt
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 Thiel Clark T licensed in California?

Yes. Thiel Clark T holds California Contractors State License Board license number 828605, which is active and in good standing. The license was first issued on December 17, 2003. It is valid through December 31, 2027.

What does Thiel Clark T specialize in?

Thiel Clark T is licensed for one CSLB classification: B General Building Contractor.

Where is Thiel Clark T headquartered?

Thiel Clark T is headquartered at 622 Blair Avenue, Piedmont, CA 94611, in Alameda County, California.

Does Thiel Clark T have an active surety bond on file with CSLB?

Yes. Thiel Clark T has an active California contractor surety bond filed with Western Surety Company.

Does Thiel Clark T carry workers' compensation coverage?

Thiel Clark T reports an exempt workers' compensation status, meaning the business has no employees on payroll.

How do I verify Thiel Clark T's contractor license?

You can verify Thiel Clark T's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=828605.

Activity Timeline
  1. License issuedDec 17, 2003
  2. Bond activeFeb 18, 2024
  3. WC coverage startsNov 28, 2025
  4. License expiresDec 31, 2027
Other contractors in Alameda County
California lien & payment resources

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

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