Removing wallpaper can be easy if you have a non-coated wallpaper, but most homeowners have vinyl-coated wallpaper, which is more durable but tears very easily during the removal process. This feature makes it challenging and time-consuming to remove most wallpaper. There are tools to speed up the process, like steamers, but, unfortunately, it’s easy to permanently damage your walls when using them. In most cases, it’s best to hire a professional wallpaper remover to get the job done quickly and without damaging your home.

One of the biggest downsides to peel-and-stick wallpaper is that it doesn't last as long as traditional wallpaper. Its lifespan depends on several factors, including the quality of the paper, proper wall preparation and application, and the room's conditions. As a general rule, peel-and-stick wallpaper can last for at least five years, but this can vary significantly. Budget products may only last about 3 years, while higher-quality products can stay up for 7 years or more in ideal conditions. Factors that can shorten its lifespan include high humidity (such as in a bathroom), dirty walls, and low-quality paper. If used on flooring, expect it to last only 1 to 3 years unless sealed. However, the shorter lifespan can be seen as a positive, making it a great choice for people who enjoy switching up their interiors more frequently.

If you’re installing new wallpaper and have leftover glue, you can remove unused wallpaper paste from the bucket or pan it’s in by letting it dry. If it’s an oil-based paste, seal it in a plastic bag and throw it in the garbage. Otherwise, toss the leftover wallpaper paste in the trash. Although it’s water-soluble, don’t rinse unused wallpaper paste down the sink because it could dry in the pipes and cause a blockage.

While it is possible to paint over wallpaper, it is generally better to remove it first to guarantee a smooth, professional finish. Painting over wallpaper can save time, but it may lead to issues if not done correctly.

You can paint over existing wallpaper if it is in excellent condition: smooth, non-textured, clean, and firmly adhered to the wall. Ensure there are no bumps, tears, or peeling areas, and that all corners and seams are securely glued down. You might also consider painting over wallpaper if removing it would damage the underlying wall. Additionally, some wallpapers are specifically designed to be paintable, which can add texture to a room.

However, there are risks. If the wallpaper is textured, damaged, or peeling, these imperfections will show through the new paint. The moisture from the paint can also loosen the wallpaper's adhesive, causing it to bubble and potentially damage the wall. To mitigate these issues, clean the surface thoroughly and use an oil-based primer to help the paint adhere and prevent the old adhesive from bleeding through.