HARTSTEN CONSTRUCTION operating as a sole owner is licensed in California under CSLB number 1120220. The license was first issued in 2024, putting the business at 2 years on the active CSLB roster. It carries a single CSLB classification: B — General Building Contractor. Records show a previously-filed surety bond from AMERICAN CONTRACTORS INDEMNITY COMPANY that is no longer active and an exempt workers' compensation status (no employees on payroll). The business is based in SAN LUIS OBISPO, in San Luis Obispo County, California.