- Carefully remove the grout around the tile with a grout rake.
- Break the tile out from the centre, working outwards, so you don't damage the tiles around it.
- Scrape off the old adhesive.
- Fix the new tile with fresh adhesive, then grout once it has set.
This is why we recommend keeping a few spare tiles from your original order. Tiles from a later batch may not match exactly, and ranges can be discontinued.