Public CSLB records

Mountain Top Construction, B General Building Contractor in Livermore, CA

License #839962·Sole Owner·Livermore, Alameda County
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Summary

Mountain Top Construction operating as a sole owner holds California contractor license #839962, which is currently expired (lapsed Jun 30, 2026) and not valid to contract until it is renewed. First issued in 2004, the license has been on the CSLB roster for 22 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Livermore, in Alameda County, California.

Business Information
Address
19600 Mines Road
Livermore, CA 94550
License Details & Classifications
License Number
839962
Issued
Jun 4, 2004
Status
CLEAR
Expires
Jun 30, 2026
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
Atlantic Specialty Insurance Company
Bond Number
810025243
Effective
May 2, 2025
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
Policy Number
Effective
May 13, 2024
Expires
Alert

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

  • License expired
License StatusInactive / Expired
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 Mountain Top Construction licensed in California?

Mountain Top Construction previously held California Contractors State License Board license number 839962, but the license expired on June 30, 2026 and is not currently valid. It was first issued on June 4, 2004.

What does Mountain Top Construction specialize in?

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

Where is Mountain Top Construction headquartered?

Mountain Top Construction is headquartered at 19600 Mines Road, Livermore, CA 94550, in Alameda County, California.

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

Yes. Mountain Top Construction has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.

Does Mountain Top Construction carry workers' compensation coverage?

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

How do I verify Mountain Top Construction's contractor license?

You can verify Mountain Top Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=839962.

Activity Timeline
  1. License issuedJun 4, 2004
  2. WC coverage startsMay 13, 2024
  3. Bond activeMay 2, 2025
  4. License expiredJun 30, 2026
Other contractors in Alameda County
California lien & payment resources

Working a California job with Mountain Top 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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