Gilbertson Mark Alan, C-54 Ceramic and Mosaic Tile Contractor in Ontario, CA
Gilbertson Mark Alan operating as a sole owner holds an active California contractor license (CSLB #630410), valid through Oct 31, 2027. First issued in 1991, the license has been on the CSLB roster for 35 years. It carries a single CSLB classification: C-54 — Ceramic and Mosaic Tile 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 Ontario, in San Bernardino County, California.
- License Number
- 630410
- Issued
- Oct 9, 1991
- Status
- CLEAR
- Expires
- Oct 31, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100944439
- Effective
- Mar 24, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Oct 29, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Gilbertson Mark Alan licensed in California?
Yes. Gilbertson Mark Alan holds California Contractors State License Board license number 630410, which is active and in good standing. The license was first issued on October 9, 1991. It is valid through October 31, 2027.
What does Gilbertson Mark Alan specialize in?
Gilbertson Mark Alan is licensed for one CSLB classification: C-54 Ceramic and Mosaic Tile Contractor.
Where is Gilbertson Mark Alan headquartered?
Gilbertson Mark Alan is headquartered at 1151 E Alvarado St, Ontario, CA 91764, in San Bernardino County, California.
Does Gilbertson Mark Alan have an active surety bond on file with CSLB?
Yes. Gilbertson Mark Alan has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Gilbertson Mark Alan carry workers' compensation coverage?
Gilbertson Mark Alan reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Gilbertson Mark Alan's contractor license?
You can verify Gilbertson Mark Alan's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=630410.
- License issuedOct 9, 1991
- Bond activeMar 24, 2025
- WC coverage startsOct 29, 2025
- License expiresOct 31, 2027
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