ADU CITIES Contractor Directory

Duke Builders Corp

● Active — license status verified against CSLB public data as of November 6, 2026

CSLB license#635180
ClassificationsB — General Building
Office of record20955 Pathfinder Rd #100
Diamond Bar, CA 91765
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(909) 843-6465
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Workers' Compensation Insurance — State Compensation Insurance Fund
Business typeCorporation
License issuedJanuary 11, 1992
License expiresJanuary 31, 2028

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Data source: CSLB public records as of November 6, 2026. License status can change at any time — verify live at CSLB before signing a contract.