KNOWLTON GREG CONSTRUCTION operating as a sole owner is licensed in California under CSLB number 1066502. The license was first issued in 2020, putting the business at 6 years on the active CSLB roster. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with WESTERN SURETY COMPANY and an exempt workers' compensation status (no employees on payroll). The business is based in CLEARLAKE, in Lake County, California.