1、Remove any nails from the walls. Wash the walls down using a weak solution of warm water and dish detergent. Allow to dry completely.

2、Cut away pieces of existing wallpaper that have peeled or bubbled using a utility knife. Repair any imperfections or indentations in the wall with nail hole filler, applying the material with a putty knife. Lightly sand the repaired areas when completely dry.

3、Use a level to draw a straight, vertical line down the center of the wall. Avoid drawing the line along any existing wallpaper seams.

4、Measure and cut the first strip of wallpaper, allowing at least 4 inches of excess on the top and bottom. Use a straight edge and utility knife to cut the strips cleanly and evenly. Lay the paper face down on the table. Apply an even coat of adhesive across the entire back side of the paper. Loosely roll the paper with the adhesive side out.

5、Using the ladder, apply the wallpaper by unrolling it slowly and pressing into place with the sponge. Begin at the top of the wall and guide your paper to ensure the outside edge lines up to your pencil marks. Leave a 2-inch overhang of paper at the top of the wall to be trimmed after all paper has been applied.

6、Work out any bubbles in the paper using the smoother. Work from the top down and from the center out. Use gentle, even strokes until the paper is smooth and firmly adhered to the wall.

7、Follow the same steps with subsequent strips of wallpaper. Use the first strip of paper to line up the second, butting the edges tightly together without overlapping them. Use a seam roller to press butted seams in place.

8、Use the utility knife to trim excess paper from the top and bottom of the wall. Run the seam roller over the top and bottom edges to ensure tight adhesion after trimming.