To replace a shower faucet, remove the faucet handles, escutcheons and faucet posts, insert new faucet posts into the old plumbing, mount new escutcheons, screw in the new faucet handles, attach new trim caps onto the handles, and turn on the water. Disconnect the water before beginning.
- Unscrew the faucet handles, and remove escutcheons
Shut the valve that lets water flow to the shower, use a flat-head screwdriver to remove the trim cap from the faucet handle, and repeat the process for the remaining handles. Use a screwdriver to remove the screws that hold the handles in place, pull out the handles, and then pry out the escutcheons that cover the hole in the wall.
- Remove the faucet posts
Undo the retaining nut on each faucet post inside the hole with an adjustable wrench. Use pliers to grab and pull the faucet posts from the plumbing one by one.
- Install the new faucet
Insert the replacement faucet posts into the same plumbing in the wall, and secure them in place with new retaining nuts. Attach the new escutcheons onto the posts, fix the new handles, and tighten the handles with mounting screws. Finally, put the new trim caps on the handles, turn on the water valve, and test the new faucet.