JOHN CASTAGNA operating as a sole owner is licensed in California under CSLB number 836502. The license was first issued in 2004, putting the business at 22 years on the active CSLB roster. It carries a single CSLB classification: B — General Building Contractor. Records show a previously-filed surety bond from WESTERN SURETY COMPANY that is no longer active and a previously-filed workers' compensation policy with STATE COMPENSATION INSURANCE FUND that is no longer active. The business is based in SANTA ANA, in Orange County, California.