UPVC Windows Repairs uPVC, or Unplasticized Polyvinyl Chloride is a low-maintenance construction material that will give your home years of energy efficiency and fashion. However, these windows do require maintenance and care periodically. Cleanse the frames and cladding using a soft cloth in order to remove dust, dirt, and grime. https://www.repairmywindowsanddoors.co.uk/ilford-windowrepair/