Plumber, plumbing, valve replacement, valve installation, laundry valves. Laundry Shut-off Hot. Upon arrival the customer stated that they was getting water on the floor of the laundry room and in the adjacent bathroom floor. I had to cut some of the drywall out to see where the water was coming from. Cut by the drain stack first cause that’s where the homeowner was saying they saw water. Ran water into the stack but didn’t have any water on the floor. Cut open the drywall some more and took my mirror to check behind the wall underneath the hot side of the laundry line and found the drywall wet and some mildew. Cut open the wall some more, 40”X 91/2”around the hot side shutoff so I could get to the threaded elbow. Removed the old shutoff and installed the new shutoff. I also had to put a short 1/2” nipple, a 1/2” coupling, then the shutoff so it would be past the drywall. Once done, checked for leaks and proper operation. OK