We don’t recommend this for the best results! Old wallpaper might peel off due to the new adhesive, which could prevent the new wallpaper from sticking properly. Bubbles can also form, making it harder to achieve a smooth finish.

For a beautiful end result, we recommend removing the old wallpaper first and applying the new wallpaper on a flat, smooth wall. This ensures your new wallpaper will look perfect and stay securely in place!