Public CSLB records

J D Z Concrete INC, C-8 Concrete Contractor in Castro Valley, CA

License #976647·Corporation·Castro Valley, Alameda County
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Summary

J D Z Concrete INC operating as a corporation holds California contractor license #976647, which is currently expired (lapsed Sep 30, 2026) and not valid to contract until it is renewed. First issued in 2012, the license has been on the CSLB roster for 14 years. It carries a single CSLB classification: C-8 — Concrete Contractor. Records show an active surety bond on file with Hudson Insurance Company and a previously-filed workers' compensation policy with Clear Spring Property and Casualty Company that is no longer active. The business is based in Castro Valley, in Alameda County, California.

Business Information
Address
1943 170th Avenue
Castro Valley, CA 94546
License Details & Classifications
License Number
976647
Issued
Sep 14, 2012
Status
CLEAR
Expires
Sep 30, 2026
Entity
Corporation
Classifications
Financial & Insurance Coverage
Contractor Bond
Surety
Hudson Insurance Company
Bond Number
30136606
Effective
Jan 5, 2024
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Clear Spring Property and Casualty Company
Policy Number
CWC03180301
Effective
Jun 21, 2025
Expires
Jun 21, 2026
Alert

This contractor has a compliance issue in its public CSLB record:

  • License expired
  • No active workers' comp on file
License StatusInactive / Expired
Contractor BondOn file
Workers' CompensationInactive

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

Frequently asked questions
Is J D Z Concrete INC licensed in California?

J D Z Concrete INC previously held California Contractors State License Board license number 976647, but the license expired on September 30, 2026 and is not currently valid. It was first issued on September 14, 2012.

What does J D Z Concrete INC specialize in?

J D Z Concrete INC is licensed for one CSLB classification: C-8 Concrete Contractor.

Where is J D Z Concrete INC headquartered?

J D Z Concrete INC is headquartered at 1943 170th Avenue, Castro Valley, CA 94546, in Alameda County, California.

Does J D Z Concrete INC have an active surety bond on file with CSLB?

Yes. J D Z Concrete INC has an active California contractor surety bond filed with Hudson Insurance Company.

Does J D Z Concrete INC carry workers' compensation coverage?

J D Z Concrete INC has a previously-filed workers' compensation policy with Clear Spring Property and Casualty Company that is no longer active.

How do I verify J D Z Concrete INC's contractor license?

You can verify J D Z Concrete INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=976647.

Activity Timeline
  1. License issuedSep 14, 2012
  2. Bond activeJan 5, 2024
  3. WC coverage startsJun 21, 2025
  4. WC expiredJun 21, 2026
  5. License expiredSep 30, 2026
Other contractors in Alameda County
California lien & payment resources

Working a California job with J D Z Concrete INC, 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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