UPVC doors do have a plastic finish, but they're an affordable and effective solution to stylishly secure any home. UPVC is a low maintenance material, unlike natural materials which require annual sanding, varnishing and repainting. Windows & doors made from UPVC can last for decades without any sign of weathering, the only upkeep is a wipe down clean with soapy water to prevent staining and remove grim or dirt.Good quality uPVC windows and doors offers ultraviolet resistance and don't fade due to heat, humidity or pollution. These window frames are easy to clean and don't require painting or sealing, this considerably lessens the maintenance required over their lifetime.UPVC doors are made by encasing an insulated steel frame in un-plasticized polyvinyl chloride (UPVC) to create a sealed unit which is strong and thermally-efficient.