I had my doorsteps tiled and grouted by GB Tiling, although the cutting and laying of the tiles was ok the grouting was poor. I was left with patchy coloured grout ( white, grey, black), with some parts lacking or missing grout. There was also white patches of adhesive on top of the tiles, which I was unable to remove. I waited 3 months for GB Tiling to return to try to repair the problems. They were unsuccessful at removing the patches of adhesive and did not fill the gaps in the grouting on the back steps. It actually looks worse as they used a different coloured grout to repair.
It was a very unprofessional grouting job.
I would not recommend GB Tiling to anyone.