Bathroom tile

I had a customer ask if I could fix a loose tile in her shower.  After looking at the tile, I found there was a window in the shower and water had been building up at the window for years.  This caused the water to leak into the tile and down the wall, deteriorating the sheetrock under the tile.  The loose tile issue, was the sheetrock it was supposed to be adhere'd to, was no longer there, causing the tile to pull away.  The solution is to remove the tile, clear out all the rot and damaged sheetrock, then retile the wall.  When it was all done, it was good as new, and matched the rest perfectly.