This post is to help our clients understand the wall prep process and why it may be required for your install. 

Most installers will do a site visit to examine the walls prior to committing to installation.  They may require the walls to be patched, sanded, skim coated (to make the texture smooth), or primed.  For example, with an orange peel texture they will most likely require skim coating and priming.  Some installers read through the wallpaper guidelines to determine the requirements, and some won't install it any other way. 

The reasoning behind this is to ensure the end result meets everyone's expectations.  If wallpaper is installed incorrectly there may be noticeable wall texture underneath, old paint showing through depending on the color, an opportunity for holes or tearing to occur where there are nooks and crannies, the wallpaper may not fully adhere, and it is harder to uninstall later.  Yes, it is harder to uninstall later if it is not properly installed.  Wallpaper is intended to come down in full sheets and not be the horror stories we have all heard or lived through previously. 

Also, while we know there are wallpapers out there that do not require your wall to be prepped most professional installers will still require it. 

Let us know if you have any questions on wallpaper installation.  Also, all of our clients will receive additional resources regarding what to expect before, during and after the install is completed.