How to Remove Sticky Labels From Glass Windows Tips & Tricks Vegetable or cooking oil is also great for removing stickers from the glass. Spray the oil or apply it with a sponge and leave for a few minutes. Use paper towels to scrape the sticker off. Clean your glass window when done. 4) Stain Remover Apply stain remover to the sticker residue. Use your hands to peel of the sticker first before your apply.