Kollias Construction Company, A General Engineering Contractor in Livermore, CA
Kollias Construction Company operating as a sole owner holds California contractor license #425152, which is currently expired (lapsed Jul 31, 2026) and not valid to contract until it is renewed. First issued in 1982, the license has been on the CSLB roster for 44 years. It carries 2 CSLB classifications: A General Engineering Contractor and B General Building Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in Livermore, in Alameda County, California.
- License Number
- 425152
- Issued
- Jul 9, 1982
- Status
- CLEAR
- Expires
- Jul 31, 2026
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- SC580496
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jul 26, 2024
- Expires
- —
This contractor has a compliance issue in its public CSLB record:
- License expired
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Kollias Construction Company licensed in California?
Kollias Construction Company previously held California Contractors State License Board license number 425152, but the license expired on July 31, 2026 and is not currently valid. It was first issued on July 9, 1982.
What does Kollias Construction Company specialize in?
Kollias Construction Company is licensed for 2 CSLB classifications: A General Engineering Contractor and B General Building Contractor.
Where is Kollias Construction Company headquartered?
Kollias Construction Company is headquartered at 4566 Kimberly Common, Livermore, CA 94550, in Alameda County, California.
Does Kollias Construction Company have an active surety bond on file with CSLB?
Yes. Kollias Construction Company has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Kollias Construction Company carry workers' compensation coverage?
Kollias Construction Company reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Kollias Construction Company's contractor license?
You can verify Kollias Construction Company's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=425152.
- License issuedJul 9, 1982
- Bond activeJan 1, 2023
- WC coverage startsJul 26, 2024
- License expiredJul 31, 2026
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