How to Fix a Leaky Shower Faucet

Drip. The rhythmic sound of a leaking shower head is more than just an annoyance; it is a signal that your plumbing components are failing. Whether it is a slow weep or a steady stream, wasted water adds up quickly and can lead to mineral buildup or corrosion inside your faucet valve body. Fixing this is a rite of passage for every homeowner. By replacing the internal seals or the entire cartridge, you restore the precise handle feel and silence the leak for years to come. Done well, this job takes an hour and leaves you with a faucet that shuts off with a satisfying, airtight snap.

1. Kill the Water First. Locate the water shut-off valves for your bathroom or the main house line. Turn them clockwise until tight, then open the shower handle to drain the remaining pressure from the pipes.
2. Pop Off the Handle. Identify the screw holding the handle in place, usually hidden under a small cap on the front. Use an Allen wrench or a flathead screwdriver to loosen the set screw and pull the handle off the stem.
3. Pry Out the Trim Ring. Unscrew the decorative trim plate or sleeve covering the valve assembly. If it is stuck, carefully use a utility knife to score any old caulk around the edge before prying it loose.
4. Loosen With a Backup Wrench. Use an adjustable wrench to loosen the brass retaining nut holding the cartridge in place. Keep the valve body steady with a second wrench to avoid putting stress on the copper pipes behind the wall.
5. Extract the Old Cartridge. Grasp the cartridge stem with pliers and pull it straight out. If it is stuck, use a cartridge puller tool to avoid damaging the interior brass valve body.
6. Seat the New Cartridge Deep. Slide the new cartridge into the valve body, ensuring it seats completely. Reinstall the retaining nut, tighten firmly, and reassemble the trim and handle.