UPVC Windows Repairs uPVC (Unplasticized Polyvinyl Chloride) is a low maintenance construction material that will provide your home with energy efficiency and elegance for many years. However, these windows need care and maintenance from time to time. Cleanse the frames and cladding with a soft cloth to get rid of http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1199612