Our PVC-U window and door profiles carry a 10 year manufacturer's warranty. They are BSI Kite Marked, with manufacture and supply carried out under ISO 9001 quality management systems.
Every aspect of the manufacturing process, from blending to extrusion, injection moulding to foil finishing, is tested to ensure a consistently high quality product. With the latest technologies and modern machinery, we are able to supply products which are consistent in colour, shape and finish. Using market leading PVC-U profiles, Crystal is able to meet the most stringent industry standards and offer our customers a wide range of important accreditations
PAS 24-1: 2012 and Secured By Design General and Enhanced Security Performance
BS EN 12608: PVC-U Profiles for the Fabrication of Windows and Doors
BS6375 Weather performance of PVC-U windows and doors
ISO 9001/2015: Quality Management System
ISO 14001/2004: Environmental Management System
Crystal supply all products with CMS marks EN 1279 and EN 14351-1:2006 +A1:2010