Spray the areas on your windows with tape residue on them. Get the liquid form as it does not need buffing. Yes, the easiest way to remove it is to buy some upvc solvent cleaner which can be bought from most hardware shops and some tissue. It is very old and hard. After that, the sticker should peel away easily. I cleaned a whole load of house martin poo off a window today. Allow the water to soak in for a few minutes, then carefully peel back the tape. We recently cleaned a client's UPVC windows internally as part of a deep clean job. Next you will need to wash away the residue left from the loosened up dirt and grime. Restoring Rosewood UPVC Window & Door Frames. Possibly evostick or similar. Opening them again feels like the window frames are going to break. They are good windows,but not installed properly. Sure, the adhesive part of the sticker is daunting to remove, but with a few tricks and products, you can easily get them out without breaking a sweat. Wipe with a lint-free cloth to remove any remaining residue … The cleaner used a standard window cleaning product on the glass and a multi-purpose cleaner on the UPVC. Vacuum any remaining dust or debris from inside the track and around the sash and frame. Don't get it from B&Q and Homebase etc as it will cost around £10. Start with the gentlest approach -- warm water and a damp cloth. How to Remove Ivy Marks. Answer + 4. Top 7 Methods You Can Use to Take Out Windshield Stickers and Decals