Royal Roofing Co. Inc. has finalized its acquisition of St. John Roofing.

Royal Roofing Co. Inc., San Jose, Calif., has finalized its acquisition of St. John Roofing, Napa, Calif. St. John will represent the company in the Napa Valley and North Bay area as a new branch location. Through this acquisition, St. John also joins Crown Services Inc., the largest roofing consolidator on the West Coast.