Article continues below advertisementToilette installation is one of those projects that require thorough planning, particularly in the preparation of the surface below. An improperly laid floor may cause drips, water damage, and expensive repairs. Whether you are renovating an old toilet or laying out a new one, it will all depend on how you go about the process right before the actual process of laying the fixture on the floor has even begun. Hiring a professional plumber can help you deal with it better.