DUNCAN WARREN CONTRACTING operating as a sole owner is licensed in California under CSLB number 553327. The license was first issued in 1989, putting the business at 37 years on the active CSLB roster. It carries 3 CSLB classifications: A General Engineering Contractor, C-21 Building Moving / Demolition Contractor, and C-61/D-40 Service Station Equipment and Maintenance Contractor. Records show an active surety bond on file with AMERICAN CONTRACTORS INDEMNITY COMPANY and active workers' compensation coverage from STATE COMPENSATION INSURANCE FUND. The business is based in SAN BERNARDINO, in San Bernardino County, California.