UPVC Windows Repairs uPVC (Unplasticized Polyvinyl Chloride) is a low maintenance construction material that will give your home energy efficiency and style for many years. These windows will need some attention and maintenance. Cleanse the cladding and frames with a soft cloth in order to remove dust, dirt, and grime. https://www.repairmywindowsanddoors.co.uk/chesham-windowrepair/