The same contractor did this tile shower for us. The grout is cracked the entire length of one corner, part of the other. At the bottom the cracks go along most of the bottom with the corners looking really bad. We started complaining to the contractor a couple of months after he finished the job. He kept putting us off and in the middle of December, after we had a roof leak, he promised to take care of the roof leak damage and "look" at the shower problem after the holidays. When we contacted him after the holidays he said he closed his business at the end of the year. What do we do about the shower? You can tell mold is behind the wall now. Does the whole thing have to come down? Do you just chip out the grout and then regrout? Of course we are going to hire someone to do it, we can't but what should others coming in to take care of it be telling us needs to happen because I don't want someone coming in making up a lot of things to be able to charge us a bundle, we paid a bundle for it to be built 8 months ago.