To prepare walls for removable wallpaper installation, start by cleaning the wall with soap and water to remove any dirt or debris. Then, make sure the wall is completely dry before applying the wallpaper. If the wall has any bumps or imperfections, you may want to sand or fill them in before applying the wallpaper to ensure a smooth surface. Additionally, you should make sure the wall is free of any oil or grease stains, as these can interfere with the adhesive and cause the wallpaper to peel over time.

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