Windows Unlimited, B General Building Contractor in Belmont, CA
Windows Unlimited operating as a sole owner holds an active California contractor license (CSLB #427964), valid through Jan 31, 2028. First issued in 1982, the license has been on the CSLB roster for 44 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Merchants Bonding Company (mutual) and an exempt workers' compensation status (no employees on payroll). The business is based in Belmont, in San Mateo County, California.
- License Number
- 427964
- Issued
- Sep 14, 1982
- Status
- CLEAR
- Expires
- Jan 31, 2028
- Entity
- Sole Owner
- Surety
- Merchants Bonding Company (mutual)
- Bond Number
- 101779908
- Effective
- Feb 25, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jan 27, 2026
- 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 Windows Unlimited licensed in California?
Yes. Windows Unlimited holds California Contractors State License Board license number 427964, which is active and in good standing. The license was first issued on September 14, 1982. It is valid through January 31, 2028.
What does Windows Unlimited specialize in?
Windows Unlimited is licensed for one CSLB classification: B General Building Contractor.
Where is Windows Unlimited headquartered?
Windows Unlimited is headquartered at 121 Industrial Rd Unit 14, Belmont, CA 94002, in San Mateo County, California.
Does Windows Unlimited have an active surety bond on file with CSLB?
Yes. Windows Unlimited has an active California contractor surety bond filed with Merchants Bonding Company (mutual).
Does Windows Unlimited carry workers' compensation coverage?
Windows Unlimited reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Windows Unlimited's contractor license?
You can verify Windows Unlimited's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=427964.
- License issuedSep 14, 1982
- WC coverage startsJan 27, 2026
- Bond activeFeb 25, 2026
- License expiresJan 31, 2028
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