No. If you overlap seams, the wallpaper will not come out flat. In addition to possibly throwing off your pattern match between rolls, overlapping seems necessary. If wallpaper is properly acclimated, and temperature and moisture conditions are optimal during installation, there is no reason to fear shrinkage as it dries.

In most cases, it is not recommended to wallpaper over existing wallpaper, as the success depends on the type of paper already on the wall. While you might be able to cover non-coated wallpaper, you should never apply new wallpaper over a vinyl-coated one, which is more common. Doing so can lead to poor adhesion, resulting in bubbles, imperfections, and peeling. It can also trap moisture, potentially causing hazardous mold growth between the layers.

Even if the existing wallpaper is suitable, experts recommend applying only one new layer. Adding multiple layers (more than two total) can cause significant adhesion problems, leading to warping and bubbling. For the best results, the recommended approach is to remove the old wallpaper and all paste residue before hanging the new paper. If you are unsure about your wallpaper type, consider consulting a professional.

Yes, many installation and painting services include wall preparation, such as patching holes, smoothing surfaces, sanding, and priming. It is recommended to confirm the specific preparations included with your provider.

It is less costly to paint than wallpaper when you only consider the upfront cost. Wallpaper costs $320 to $820 when applied by a pro, while paint only costs $200 to $700 per room. However, when comparing wallpaper versus paint, consider the long-term as well. Wallpaper can save you money over time since it has a much longer life span than paint.