Public CSLB records

Tri - Valley Engineering, A General Engineering Contractor in Castro Valley, CA

License #1107893·Corporation·Castro Valley, Alameda County
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Summary

Tri - Valley Engineering operating as a corporation holds an active California contractor license (CSLB #1107893), valid through Jul 31, 2027. First issued in 2023, the license has been on the CSLB roster for 3 years. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and a previously-filed workers' compensation policy with Hartford Casualty Insurance Company that is no longer active. The business is based in Castro Valley, in Alameda County, California.

Business Information
Address
6800 Paloverde Rd
Castro Valley, CA 94552
License Details & Classifications
License Number
1107893
Issued
Jul 31, 2023
Status
CLEAR
Expires
Jul 31, 2027
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
100759415
Effective
Jun 22, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Hartford Casualty Insurance Company
Policy Number
76WEGAT2KGF
Effective
Jul 20, 2025
Expires
Jul 20, 2026
Alert

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

  • No active workers' comp on file
License StatusActive
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 Tri - Valley Engineering licensed in California?

Yes. Tri - Valley Engineering holds California Contractors State License Board license number 1107893, which is active and in good standing. The license was first issued on July 31, 2023. It is valid through July 31, 2027.

What does Tri - Valley Engineering specialize in?

Tri - Valley Engineering is licensed for one CSLB classification: A General Engineering Contractor.

Where is Tri - Valley Engineering headquartered?

Tri - Valley Engineering is headquartered at 6800 Paloverde Rd, Castro Valley, CA 94552, in Alameda County, California.

Does Tri - Valley Engineering have an active surety bond on file with CSLB?

Yes. Tri - Valley Engineering has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Tri - Valley Engineering carry workers' compensation coverage?

Tri - Valley Engineering has a previously-filed workers' compensation policy with Hartford Casualty Insurance Company that is no longer active.

How do I verify Tri - Valley Engineering's contractor license?

You can verify Tri - Valley Engineering's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1107893.

Activity Timeline
  1. Bond activeJun 22, 2023
  2. License issuedJul 31, 2023
  3. WC coverage startsJul 20, 2025
  4. WC expiredJul 20, 2026
  5. License expiresJul 31, 2027
Other contractors in Alameda County
California lien & payment resources

Working a California job with Tri - Valley Engineering, 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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