Pittsburg Black Diamond Builders, B General Building Contractor in Pittsburg, CA
Pittsburg Black Diamond Builders operating as a corporation holds California contractor license #810069, which is currently expired (lapsed Aug 31, 2026) and not valid to contract until it is renewed. First issued in 2002, the license has been on the CSLB roster for 24 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Nationwide Mutual Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Pittsburg, in Contra Costa County, California.
- License Number
- 810069
- Issued
- Jun 29, 2002
- Status
- CLEAR
- Expires
- Aug 31, 2026
- Entity
- Corporation
- Surety
- Nationwide Mutual Insurance Company
- Bond Number
- 7901259571
- Effective
- Aug 11, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jul 18, 2025
- 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 Pittsburg Black Diamond Builders licensed in California?
Pittsburg Black Diamond Builders previously held California Contractors State License Board license number 810069, but the license expired on August 31, 2026 and is not currently valid. It was first issued on June 29, 2002.
What does Pittsburg Black Diamond Builders specialize in?
Pittsburg Black Diamond Builders is licensed for one CSLB classification: B General Building Contractor.
Where is Pittsburg Black Diamond Builders headquartered?
Pittsburg Black Diamond Builders is headquartered at 328 Yosemite Dr, Pittsburg, CA 94565, in Contra Costa County, California.
Does Pittsburg Black Diamond Builders have an active surety bond on file with CSLB?
Yes. Pittsburg Black Diamond Builders has an active California contractor surety bond filed with Nationwide Mutual Insurance Company.
Does Pittsburg Black Diamond Builders carry workers' compensation coverage?
Pittsburg Black Diamond Builders reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Pittsburg Black Diamond Builders's contractor license?
You can verify Pittsburg Black Diamond Builders's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=810069.
- License issuedJun 29, 2002
- WC coverage startsJul 18, 2025
- Bond activeAug 11, 2025
- License expiredAug 31, 2026
- Jack's Remodeling INC#285875Concord·B General Building Contractor
- Thomas W A CO INC#285617Martinez·A General Engineering Contractor
- Seeno Albert D JR#281273Concord·A General Engineering Contractor
- Seeno Thomas Albert#281272Walnut Creek·A General Engineering Contractor
- Sausal Corporation#281425Concord·B General Building Contractor
- Maida Construction Company#293985Walnut Creek·B General Building Contractor
- Interactive Resources INC#290922Point Richmond·B General Building Contractor
- Morris Tile & Construction CO#290868Antioch·B General Building Contractor
Working a California job with Pittsburg Black Diamond Builders, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Pittsburg Black Diamond Builders? Claim or correct this profile