In the paint sections they do have some wallpaper repair and install items
I'm sure you can hire someone but it's a great weekend project to do by yourself. It's easy and for more effective wall paper repair match as much as possible and remove as much of the old wall paper section and match the new one to that section.
You can buy a repair kit and do it yourself. But I remodel homes and i highly recommend removing the wallpaper and painting the walls. Or a homeowner recently had us just paint over it. But I recommend removing it first. The paint is so expensive when yiu paint over the wallpaper. Its just absorbs the paint. Its easy to do yourself.
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