UPVC Windows Repairs uPVC, or Unplasticized Polyvinyl Chloride, is a low-maintenance construction material that can give your home years of energy efficiency and fashion. However, these windows do require care and maintenance at times. Wipe the frames and cladding down with a soft, clean cloth to remove dust and dirt. https://www.repairmywindowsanddoors.co.uk/esher-windowrepair/