The answer to this question is relative to your experience and your ability to measure and use basic hand tools such as a level, a drill, and wall anchors. It also depends on what type of wall you have in the bathroom. If you have a tile wall, the process is similar to hanging shelves on drywall, but it requires a bit more finesse and skill. If you aren’t comfortable hanging shelves on your own, you may need to hire someone to do it for you. As an alternative, you could purchase freestanding shelves.