Jammer Doors is a quality organization, setting serious standards in the industry. We are family owned and operated, and have been serving the Tri-State area since 1920. Join as we celebrate our 90th year in business. Jammer Doors has been serving the following counties: Bucks County, Mercer County, Monmouth County, and Ocean County for over 89 years. Specializing in the sales, service, and installation of quality doors and door related products.