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 care and maintenance. Wipe down the frames and cladding with a soft cloth in order to remove dust and dirt. https://www.repairmywindowsanddoors.co.uk/wembley-windowrepair/