Why Should I Choose Radcliffe Glass & Windows? At Radcliffe Glass & Windows we keep ahead of the competition, and are up to date with the latest innovations in technology, installing only the best Windows, Doors, Lightweight Conservatory Roof Replacements, Conservatories & Orangeries. We have traded continually for 44 years and due to our unparalleled experience within the area, we have exclusivity on a whole host of quality products such as Spitfire Doors, Origin, Aluco Aluminium, Rock Door, Profile 22, Solidor & Evolution Windows all with the longest guarantees in the industry. Not only that, but we include the DGCOS's Insurance Backed Guarantee which provides unequaled protection for our customers.