Duke Construction, B General Building Contractor in Moraga, CA
Duke Construction operating as a sole owner holds an active California contractor license (CSLB #548992), valid through Nov 30, 2026. First issued in 1988, the license has been on the CSLB roster for 38 years. It carries a single CSLB classification: 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 Moraga, in Contra Costa County, California.
- License Number
- 548992
- Issued
- Nov 18, 1988
- Status
- CLEAR
- Expires
- Nov 30, 2026
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 101016266
- Effective
- Dec 2, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Dec 2, 2024
- 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 Duke Construction licensed in California?
Yes. Duke Construction holds California Contractors State License Board license number 548992, which is active and in good standing. The license was first issued on November 18, 1988. It is valid through November 30, 2026.
What does Duke Construction specialize in?
Duke Construction is licensed for one CSLB classification: B General Building Contractor.
Where is Duke Construction headquartered?
Duke Construction is headquartered at 507 Butterfield Place, Moraga, CA 94556, in Contra Costa County, California.
Does Duke Construction have an active surety bond on file with CSLB?
Yes. Duke Construction has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Duke Construction carry workers' compensation coverage?
Duke Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Duke Construction's contractor license?
You can verify Duke Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=548992.
- License issuedNov 18, 1988
- WC coverage startsDec 2, 2024
- Bond activeDec 2, 2025
- License expiresNov 30, 2026
- Swinerton Builders#92Concord·A General Engineering Contractor
- Overaa C & CO#106793Richmond·A General Engineering Contractor
- Contra Costa Electric INC#139885Martinez·A General Engineering Contractor
- Scott Edward W Electric CO INC#190426Richmond·A General Engineering Contractor
- Lyons W E Construction CO#180607Walnut Creek·A General Engineering Contractor
- Enterprise Roofing Service INC#221274Concord·B General Building Contractor
- Strand Builders#221887Walnut Creek·B General Building Contractor
- Martinez Sheet Metal INC#222277Martinez·B General Building Contractor
Working a California job with Duke Construction, 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 Duke Construction? Claim or correct this profile