http://hamlinworld.com/News/the-maintenance-and-repair-of-upvc-double-glazed-windows/ UPVC is a very durable material and with proper maintenance and repair can have a life in excess of 20-25 years. There are many differences between timber and uPVC windows. Compared to products such as timber windows no matter what type and style of window , uPVC windows , do not need high volumes of [.] Related posts: Cleaning uPVC Windows And Doors. What You Want In A uPVC Window. The Advantages... Thu, 11 Mar 2010 07:14:27 CST en