Repairing UPVC Windows The durability and energy efficiency of uPVC windows is increasing their popularity. However, uPVC windows can become damaged over time, and some of these damage may require repair. Most of the time, repairs are more cost-effective than replacing your windows. Repairs are less disruptive to your daily http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1218310