That depends on the current tile condition but in most cases you can. Tile can even be installed over an existing tile floor.
If the original tile is still in excellent condition then it is possible to install tile over tile but the proper steps must be taken in order to complete the project correctly.
Can you install tile over tile floor. In fact pros do it all the time. Can you install new tile on top of old tile. Tiling over tile is usually a much easier and cheaper solution than pulling up your original tiles and re tiling your floor or wall.
But this assumes that the floor underneath is solid concrete and that there are no cracks in the existing tile indicating underlying problems in the concrete. The result of this type of installation is especially dramatic if you re changing to a larger size tile as we are in this kitchen. You do not have to allot work hours to pull up the existing tiles which means the tiling work can be finished much faster and all without the big mess.
You can only tile over tile if the floor underneath is solid concrete or mortar. One advantage of doing this is that it is time saving. Tiling over an uneven surface will give you less than stellar results so level out any globs of dried grout with a sander and secure loose tiles with fresh tile adhesive before beginning the project.
If your old ceramic tile is worn or dated you can lay new tile right over the old and avoid the huge job of tearing out the old tile. If this is not the case you will need to tear up the tile and start fresh. You can usually tell when a floor is not solid if it shifts or moves when you walk over it.
These 8 tiles not only date the room but the excessive darker grout lines can actually make the room seem smaller than it actually is. Removing existing tile before installing new tile is recommended however sometimes old tile can be very difficult or almost impossible to remove. Covering existing bathroom entryway or kitchen tiles with new tiles gives the space a fresh look and significantly cuts down on your installation time.