If you are looking for UPVC Doors in Diss the Polytrade Building Supplies LTD should be your first choice. Based in Harleston, Norfolk, Polytrade have a wide selection of UPVC & Composite Doors to choose from and experienced staff to help you through the choice of door colours & styles. We don’t employ high pressure sale staff and will quote you on exactly what you need. If you need a quote call us now on 01379 854445.