To remove wallpaper glue residue from walls, start by mixing warm water with a few drops of dish soap. Apply the solution to the residue using a sponge or cloth, then let it sit for a few minutes. Use a scraper or putty knife to gently scrape off the residue, being careful not to damage the wall. If the residue is stubborn, you may need to use a commercial wallpaper glue remover or sandpaper. After removing the residue, rinse the wall with clean water and let it dry completely before painting or applying new wallpaper.

Read more about removable wallpaper in our blog: How to correctly choose, install, take care of and remove Peel and Stick wallpaper