In a bathroom renovation, you can update or replace bathtubs, showers, surrounds, tile, sinks, vanities, toilets, flooring, and even towel bars. This may be referred to as a bathroom upgrade. Adding new features to a bathroom renovation can also include replacing outdated lighting, repainting walls, and installing organizational features, such as shelves and drawers. As part of a bathroom renovation, a complete gutting of the bathroom may also be carried out.