This one-for-one replacement can be done by most DIYers and takes about one hour.

The cartridge can be easily slipped out and replaced when the rubber O-ring degrades over time.

If this is the case, skip the next step.

Exposed shower valve with new cartridge held in front

The Spruce / Kevin Norris

Loosen the screws securing the trim plate to the valve assembly, then slide it off the valve stem.

Scrape off old caulk and clean the trim plate and shower handle.

Pull the clip up and out of the shower valve.

Materials and tools to replace a shower valve cartridge

The Spruce / Kevin Norris

If the cartridge is stuck, use a lubricating solution like WD-40.

Inspect the shower valve assembly to ensure it’s in good condition before proceeding.

implement the New Shower Valve Cartridge

Slide in the new shower valve cartridge.

Water turned off from main shut-off valve

The Spruce /Kevin Norris

Use the new or the old retainer clip to secure the cartridge.

Wipe down the valve assembly with a paper towel to ensure it’s dry.

You may be able to replace your shower valve without removing the tile.

White plastic drop cloth placed on bottom of shower to cover drain

The Spruce / Kevin Norris

This is the case when the hole in the wall is larger than the shower valve’s diameter.

Shower valves last about 10 to 15 years.

Shower valve cartridges typically fail due to degraded O-rings and require replacement.

shower handle removed with Allen wrench

The Spruce / Kevin Norris

How Much Does Shower Valve Replacement Cost?.

Screwdriver loosening valve assembly to remove trim plate

The Spruce / Kevin Norris

Shower wall hole and valve inspected for size

The Spruce / Kevin Norris

Retainer clip removed from shower valve cartridge with needle-nose pliers

The Spruce / Kevin Norris

Shower valve cartridge pulled out with pliers

The Spruce / Kevin Norris

New shower valve cartridge pushed into valve assembly

The Spruce / Kevin Norris

Water turned back on through main shut-off valve

The Spruce / Kevin Norris

Trim plate replaced over shower valve and stem

The Spruce / Kevin Norris