I am very unhappy with a tiling job in my house. Tiling isn’t level, grout is the wrong colour and patchy, tiles along skirting isn’t flush in areas, marks left on freshly painted walls.
You can regrout. It's amazing what a transformation it makes. It is a perfectly simple DIY job but it is time-consuming. You can fill in holes along the skirting or add a layer of beading to make it a bit neater. You can't fix the fact the tiles are not level though. If they are really bad you really need to remove and re-tile.
