Bathroom design and installation businesses plan and fit bathrooms in homes and other buildings. They may work with customers to assess the room, discuss practical needs and choose a layout, then prepare drawings or plans showing the position of sanitaryware, furniture, lighting and fittings. Some provide a complete service, while others specialise in design, plumbing, building work or fitting particular products. Typical work includes removing an existing bathroom, installing baths, showers, toilets, basins and taps, and fitting units, worktops, mirrors, screens and accessories. Services may also cover tiling, flooring, plastering, decorating, lighting, ventilation and plumbing alterations. Where the layout or building requires it, installers may coordinate electrical and building work with other trades. Customers can usually expect advice on product choices, preparation of the space, installation and finishing; the precise services offered vary between businesses.