Welcome to the website of UK Building Plastics Ltd. Based in Oxford and Witney, we proudly serve as the Oxfordshire area’s go-to supplier of brand new front doors (both uPVC doors and composite doors), back doors, patio doors (including bifolding doors and French doors), uPVC windows, conservatories and double glazing. Our customers, who come to us from areas including Abingdon, Banbury, Bicester, Didcot and Wantage, range from tradesmen to DIY enthusiasts.