National Sign Shops specializes in digital printing, banners, wood signs and vehicle lettering. Founded in 1989, the company is accredited by the Lower Bucks County Chamber of Commerce, National Sign Council and the United States Sign Council. It offers the installation of interior and exterior sign material, light boxes and ground signs. National Sign Shops provides bulb and ballast replacement and electrical troubleshooting services. The company also offers sports, job and traffic signs, as well as plastic-formed and channel letters. It additionally provides painted plywood and vehicle graphics. The company is a member of USSC and the Lower Bucks County Chamber of Commerce.