Double Glazing Shop are now retailing patio doors and bi fold doors nation wide for the DIY market. Installation service available in certain areas of the country. For the best vlue for money in upvc windows, double glazing, cosnervatories and patio doors the Double Glazing Shop are the place to be buying from right now. Using their bulk buying power through the credit crunch you will get a great deal. Leading online retailer of Spectus, rehau and Bowater double glazing.