How to repair loose tiles

You can check if your tiles are loose by gently tapping on them and listening for a hollow sound. Another sign you can look for is if the grout around the tile is cracked.

How to fix it

If you are unlucky enough to have cracked tiles, and it is not possible to change them, there is a method that that can be used to manually restore them. However it is an expensive solution and would therefore usually be cheaper to have them repaired first.