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No, when done correctly, removing the tile shouldn’t damage the subfloor. However, if there was pre-existing damage to the subfloor from standard use or lack of maintenance, the subfloor may need repairs. For example, if the contractors notice mold growth on the subfloor or an uneven surface, you may need more extensive services before installing new tile.

If you DIY tile removal, remove the tiles one step at a time, individually removing the tile, grout, and mortar to prevent unnecessarily damaging the subfloor. Depending on the age of your home, consider having a professional inspect the subfloor to ensure it’s in good enough condition to lay new tile.

When working on your bathroom floor tiling, you should always tile the floor first and then refit the toilet afterward. This has both practical and visual advantages—the tile will have a better seal, and the installation will look cleaner.

On the other hand, when you try to cut the tiles to fit around the toilet, you’re putting yourself at a disadvantage. It’s a lot more work, it’s hard to be precise, and mistakes or miscalculations can lead to future moisture damage to the tiling, grout, and subfloor.

Yes. You can tile over tile if the old tile is in good shape, but this will also create a thicker floor. As a result, you may have to remove and readjust baseboards and other room trimmings and potentially even raise door heights to work with the higher floors. In most projects, it’s best to remove the old tile before installing a new tile floor.

In some cases, granite tiles can be installed over existing flooring if the surface is level, stable, and free of moisture issues. However, removing old flooring is often recommended to ensure a secure and long-lasting installation, as well as to avoid height differences at thresholds. Consult with your flooring pro to determine the best approach based on your specific situation.