Public CSLB records

Bertolini Construction, B General Building Contractor in Antioch, CA

License #1139109·Sole Owner·Antioch, Contra Costa County
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Summary

Bertolini Construction operating as a sole owner holds an active California contractor license (CSLB #1139109), valid through Jun 30, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. 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 Antioch, in Contra Costa County, California.

Business Information
Address
1129 Leggett St
Antioch, CA 94509
License Details & Classifications
License Number
1139109
Issued
Jun 18, 2025
Status
CLEAR
Expires
Jun 30, 2027
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
Western Surety Company
Bond Number
67500637
Effective
May 23, 2025
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
Policy Number
Effective
May 28, 2025
Expires
Review

This contractor warrants a closer look before contracting:

  • Workers' comp listed as exempt
  • License issued less than 2 years ago
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 Bertolini Construction licensed in California?

Yes. Bertolini Construction holds California Contractors State License Board license number 1139109, which is active and in good standing. The license was first issued on June 18, 2025. It is valid through June 30, 2027.

What does Bertolini Construction specialize in?

Bertolini Construction is licensed for one CSLB classification: B General Building Contractor.

Where is Bertolini Construction headquartered?

Bertolini Construction is headquartered at 1129 Leggett St, Antioch, CA 94509, in Contra Costa County, California.

Does Bertolini Construction have an active surety bond on file with CSLB?

Yes. Bertolini Construction has an active California contractor surety bond filed with Western Surety Company.

Does Bertolini Construction carry workers' compensation coverage?

Bertolini Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.

How do I verify Bertolini Construction's contractor license?

You can verify Bertolini Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1139109.

Activity Timeline
  1. Bond activeMay 23, 2025
  2. WC coverage startsMay 28, 2025
  3. License issuedJun 18, 2025
  4. License expiresJun 30, 2027
Other contractors in Contra Costa County
California lien & payment resources

Working a California job with Bertolini Construction, 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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