re: How much is this gonna cost me (plumbing)

This is what I did. I never noticed moisture outside, so I never even looked to do this before. When I pointed out the grout cracks (which I thought was just shitty construction at first), this guy went take a look at a few things to be sure. He noticed moisture around the cracks. House is less than 5 years old, so wasn't expecting shower pans to rust through or anything. I'm the one that asked him to take a look. Don't know why anyone is saying he "went in dry one me". Hadn't paid the man a dime for this and he said he'd come back if I saw more fluid and check some things for free. I then saw the leak with my own eyes after the next shower was taken. I know somethings not right. I want to make sure there is no rotten wood or mold since this could have been happening for a year. Now that's my own dumbass fault, but I was told if proper backer board and thinset were used, the cracks really shouldn't cause a huge water issue. They are about 2 foot up on a ledge in the shower, but it does get wet from over spray. Been meaning to call about this, but I can be lazy and forgetful when nothing bad is happening (at least that I can see)