It is essential in the bathroom that the space is waterproof so that it does not leak water around the fittings. This applies to the grouting used around the tiles in this space, whether they are completely new tiles, or re-grouting of existing tiles. Whether the job requires tiling from scratch or transforming old tiles with new grouting, it is worth spending time and care getting this job right.
If the tiles are completely brand new then leave them on the wall for 24 hours in order for the tile cement to fully dry before grouting. To transform old tiling, the old grouting needs to be removed. There are specialist power tools with attachments that will remove old grouting. The cheaper alternative is to use a knife to separate the edge of the grouting from the tile. Chisel out the grouting, but be careful that it does not scratch the bathroom fittings when it is removed.
Look for grouting mixed with latex as these are more resistant, and check that it is waterproof, not just water resistant. It can be bought pre-mixed or as a powder, depending on the budget and area to grout.
When it comes to applying grout, it should be at diagonal to the tile edge at a 45 degree angle, using a grout float to get even and maximum coverage. It will cover the tiles as well, but grout will wipe off very easily. Wait around fifteen minutes after grouting, and then wipe the tiles with a damp cloth to wipe away any excess. Do not press too hard, as the grout will not have set. A good tip is to run a wet finger over the grouting to ensure there are no gaps and the finish is smooth. Most grout will take a few days to completely set.


