Public CSLB records

Blackstar Concrete, C-8 Concrete Contractor in Livermore, CA

License #1055894·Sole Owner·Livermore, Alameda County
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Summary

Blackstar Concrete operating as a sole owner holds an active California contractor license (CSLB #1055894), valid through Jul 31, 2027. First issued in 2019, the license has been on the CSLB roster for 7 years. It carries a single CSLB classification: C-8 — Concrete Contractor. Records show an active surety bond on file with Western Surety Company and active workers' compensation coverage from Mid-Century Insurance Company. The business is based in Livermore, in Alameda County, California.

Business Information
Address
220 S Livermore Ave 1027
Livermore, CA 94550
License Details & Classifications
License Number
1055894
Issued
Jul 16, 2019
Status
CLEAR
Expires
Jul 31, 2027
Entity
Sole Owner
Classifications
Financial & Insurance Coverage
Contractor Bond
Surety
Western Surety Company
Bond Number
67512290
Effective
Jun 22, 2025
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Mid-Century Insurance Company
Policy Number
A09512532
Effective
Feb 5, 2022
Expires
Feb 5, 2027
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 Blackstar Concrete licensed in California?

Yes. Blackstar Concrete holds California Contractors State License Board license number 1055894, which is active and in good standing. The license was first issued on July 16, 2019. It is valid through July 31, 2027.

What does Blackstar Concrete specialize in?

Blackstar Concrete is licensed for one CSLB classification: C-8 Concrete Contractor.

Where is Blackstar Concrete headquartered?

Blackstar Concrete is headquartered at 220 S Livermore Ave 1027, Livermore, CA 94550, in Alameda County, California.

Does Blackstar Concrete have an active surety bond on file with CSLB?

Yes. Blackstar Concrete has an active California contractor surety bond filed with Western Surety Company.

Does Blackstar Concrete carry workers' compensation coverage?

Yes. Blackstar Concrete carries active workers' compensation coverage through Mid-Century Insurance Company.

How do I verify Blackstar Concrete's contractor license?

You can verify Blackstar Concrete's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1055894.

Activity Timeline
  1. License issuedJul 16, 2019
  2. WC coverage startsFeb 5, 2022
  3. Bond activeJun 22, 2025
  4. WC expiresFeb 5, 2027
  5. License expiresJul 31, 2027
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California lien & payment resources

Working a California job with Blackstar Concrete, 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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