Preparing your walls before put the wallcover

Before you work, firstly you identify your wall.

Previously wallpapered walls :

Old wallpaper should be removed unless it is in excellent condition. Wallpaper designated as strippable is easily removed by lifting a corner and pulling. Unstrippable wallpaper should be sanded, saturated with water with a sponde or sprayer, then scraped off with a putty knife. Walls should be washed and rinsed clean of the old paste. Finally, apply sizing.

Flat painted walls :

After washing, scrape or sand off any rough spots. Fill cracks and holes with lightweight spackling compound, let dry and then sand until smooth. Prime all spackled areas before applying sizing.

Glossy painted walls :
After washing, glossy surfaces should be throoughly sanded, then sized.

New and unpainted walls :

Do not apply wallpaper over new drywall or plaster without first applying a primer or sealer. Then apply sizing, this improves adhesion and provides a smooth surface for easier positioning and hanging. Badly cracked plaster walls, concrete block and paneled walls should be covered with wallpaper liner before sizing to create an even surface.