Black Diamond Builders, B General Building Contractor in Grass Valley, CA
Black Diamond Builders operating as a sole owner holds an active California contractor license (CSLB #831668), valid through Jan 31, 2028. First issued in 2004, the license has been on the CSLB roster for 22 years. It carries 2 CSLB classifications: B General Building Contractor and C-42 Sanitation System Contractor. Records show an active surety bond on file with Jet Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Grass Valley, in Nevada County, California.
- License Number
- 831668
- Issued
- Jan 30, 2004
- Status
- CLEAR
- Expires
- Jan 31, 2028
- Entity
- Sole Owner
- Surety
- Jet Insurance Company
- Bond Number
- JT030296
- Effective
- Apr 1, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Dec 28, 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 Black Diamond Builders licensed in California?
Yes. Black Diamond Builders holds California Contractors State License Board license number 831668, which is active and in good standing. The license was first issued on January 30, 2004. It is valid through January 31, 2028.
What does Black Diamond Builders specialize in?
Black Diamond Builders is licensed for 2 CSLB classifications: B General Building Contractor and C-42 Sanitation System Contractor.
Where is Black Diamond Builders headquartered?
Black Diamond Builders is headquartered at P O Box 3145, Grass Valley, CA 95949, in Nevada County, California.
Does Black Diamond Builders have an active surety bond on file with CSLB?
Yes. Black Diamond Builders has an active California contractor surety bond filed with Jet Insurance Company.
Does Black Diamond Builders carry workers' compensation coverage?
Black Diamond Builders reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Black Diamond Builders's contractor license?
You can verify Black Diamond Builders's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=831668.
- License issuedJan 30, 2004
- WC coverage startsDec 28, 2025
- Bond activeApr 1, 2026
- License expiresJan 31, 2028
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