I would not recommend The Groutmisth. The owner who initially came out seemed very knowledgeable however the "technician" sent out to do the job was a teenager who told me he had only been doing this for just over a month. Unfortunately, his lack of skill showed and it seems the old grout was simply painted over with the new color. Very messy job- grout was stuck to the face of several of the tiles in my shower and has started to peel off as well. Very dissatisfied.