Best backsplash installation pros near Holmen, WI

You can technically install tile over tile, but we don’t suggest it. Installing tile over any surface that isn’t a completely flat and prepared subfloor will result in a shoddy overall job, uneven flooring, tiles that don’t adhere, extra weight, gaps, cracks, and room for moisture and dirt to enter. For the best results, only install new tile on a flat, sanded surface like subflooring or concrete that is prepared for tile.

If you have asbestos tile and would rather tile over it than remove it, or if your existing tile is completely flat and bonded tightly to the floor, you may be able to tile over existing tile. But experts recommend thinking twice before you do.

You cannot tile directly over hot mop waterproofing because tile requires a smooth, solid surface to adhere properly. Additionally, the shower bed pan needs to be raised and sloped toward the drain to prevent water from pooling. However, you can hot mop and apply a sloped mortar bed over the top (to which the tile can then be adhered). 

It’s best to start with tiling the shower floor before moving on to the walls for the most visually-pleasing results. When taking on any tiling project, you’ll want the wall tiles to “sit” neatly on the floor tiles rather than overlapping them. Finishing your floor tiles first will allow you to place your wall tiles without any gaps, holes, or awkward intersections.

While you shouldn’t use thinset mortar on its own as a floor leveler, it can work alongside other products to help level floors. For instance, you could start with a self-leveling compound, let that dry, then apply backer board with thinset mortar to help fully even out the floors ahead of laying tile.