My kitchen has a white ceramic tile floor. It never looks clean, every speck of dirt shows. Because we live in a slab home, the tiles are glued right to the concrete. I hate to think how much work it would be to remove them. I could tile over - but it would make the kitchen floor higher than the surrounding rooms. Is there any suitable product for changing the color of the tile in such a high traffic area?
There is no GOOD way to do this. And you are right in that tiling over tile is a bad idea. You could go over it with a product like DuraCeramic, which would only raise the floor level up a small amount, but be aware that anything you put over that surface will likely make the existing surface unusable forevermore and you might regret it someday. The real solution would be to demo the existing tile and install new tile.
Have you considered a tile cleaning service? Replacing would take about a week. I would not tile over existing tile. There are products that can be applied over your existing tile that look exactly like a tile floor, but the process costs about the same and takes just as long as re-tiling. Also the person doing it really has to know what they are doing or the job can look terrible. Holmes on Holmes just did a show on the process and it appeared a bit complicated and does not allow much room for error. I'd either get them professionally cleaned or removed and re-tile.
