GP4 CONSTRUCTION operating as a corporation is licensed in California under CSLB number 941647. The license was first issued in 2009, putting the business at 17 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 BUSINESS ALLIANCE INSURANCE COMPANY and active workers' compensation coverage from EVEREST PREMIER INSURANCE COMPANY. The business is based in WINNETKA, in Los Angeles County, California.