My tiles were looking a little "tired" due to the continual grout darkening due to dirt etc. I did a bit of research and hired grout expectations to clean and seal all tiling (bath, kitchen, hall). What a difference the coloured grout seal makes. All floors look like they new. Even the tile that I contemplated removing now looks like a winner now. I question why I didn't do this sooner. The cleaning of the tub grout was also surprising as it looks almost new. Excellent work. You can tell this is a family run business as they are very courteous and go about there business in a very professional manner. I would not hesitate hiring this firm.