UPVC Windows Repairs uPVC (Unplasticized Polyvinyl Chloride) is a low maintenance construction material that can provide your home with energy efficiency and elegance for a long time. These windows require maintenance and care. Wipe the frames and cladding with a soft clean cloth to get rid of dirt and dust. https://www.repairmywindowsanddoors.co.uk/bishopsstortford-windowrepair/