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Licensed contractors in Duncan, CA 8 active licenses list Duncan as their address in California Contractors State License Board's License Master file, file dated November 6, 2026.
Before you hire anyone on this list Confirm the license on the official site. Our copy is a snapshot; the state's record is live and shows complaints. Make sure the name on your contract matches the name on the license. Check the license type covers your job. A roofing license doesn't cover electrical work. How to check a contractor in California, step by step
Other license types 8 Afl Enterprise Cable Services Low voltage systems (C-7) · #1056327 · expires December 31, 2027 Das Group Professionals LLC General building (B) · #1130062 · expires December 31, 2026 Ellsworth Electric INC Electrical (C-10) · #748928 · expires May 31, 2028 I T C Service Group Acquisition LLC General engineering (A), Low voltage systems (C-7) · #1017954 · expires September 30, 2028 Jett Solutions LLC Electrical (C-10) · #985165 · expires July 31, 2027 Robinette Frederick Jackson General building (B) · #758936 · expires February 28, 2027 Rofa North America INC Limited specialty (D-21) · #1159104 · expires August 31, 2028 Tei Construction Services INC Boiler, hot water heating and steam fitting (C-4) · #710965 · expires August 31, 2027 Is your business on this list?
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Source: California Contractors State License Board's License Master file. CSLB's file covers licenses that are current, or expired but still renewable. Cancelled and revoked licenses aren't in it, so if you can't find someone, check the official search. Only licenses that are active in the file and list an address in
Duncan are shown; a contractor based elsewhere can still work here. LicenseLookup is an independent guide, not a
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