In April of 2014, brothers Brian and Robbie Frederick celebrated the 68th anniversary of Joseph Frederick & Sons, which has grown and expanded from a "one-man, one-truck” business into a multimillion-dollar organization, providing residents of the Delaware Valley with plumbing, heating, cooling, and electrical services. Known in the region for its persimmon-and-black trucks, Joseph Frederick & Sons is one of the few family-owned-and-operated businesses that has survived.