UPVC Windows Repairs uPVC, or Unplasticized Polyvinyl Chloride, is a low-maintenance building material that can give your home years of energy efficiency and fashion. These windows will require some attention and maintenance. Wipe down the cladding and frames with a soft cloth in order to remove dust, dirt, and grime. https://www.repairmywindowsanddoors.co.uk/walthamcross-windowrepair/