How to Fix a Leaky Single-Handle Shower Faucet

Virginia Jul 01, 2026

Is your shower faucet dripping water even when it's turned off? This common issue can be frustrating and wasteful, but it's often an easy fix. In this guide, we'll walk you through how to fix a leaky shower faucet with a single handle, saving you water and money in the process.

Fix a leaky Delta Single-handle shower faucet for UNDER $2!!
Fix a leaky Delta Single-handle shower faucet for UNDER $2!!

Before we dive into the solutions, it's important to understand that there are two main types of single-handle faucets: cartridge and ceramic disc. The steps to fix a leaky faucet vary slightly depending on the type, so we'll cover both.

How To Fix A Leaking or Dripping Shower Head or Bathtub Faucet
How To Fix A Leaking or Dripping Shower Head or Bathtub Faucet

Identifying the Faucet Type

To determine if your faucet is cartridge or ceramic disc, first turn off the water supply to your shower. Then, remove the handle. If you see a cylindrical cartridge, your faucet is cartridge-type. If you see a ceramic disc assembly, it's a ceramic disc faucet.

How to Fix a Leaky Delta Shower Faucet - Home Tips
How to Fix a Leaky Delta Shower Faucet - Home Tips

Once you've identified your faucet type, you can proceed to the appropriate section for troubleshooting and repair.

Cartridge-Type Faucets

How to repair a leaky single lever moen bath or shower faucet..Older style
How to repair a leaky single lever moen bath or shower faucet..Older style

Cartridge-type faucets use a cylindrical cartridge that controls the water flow. When this cartridge wears out or becomes damaged, it can cause leaks. Here's how to fix a leaky cartridge faucet:

Tools needed: Screwdriver, adjustable wrench, pliers, new cartridge (if necessary), plumber's grease.

  1. Turn off the water supply and open the faucet to relieve any remaining water pressure.
  2. Remove the handle screw using a screwdriver and lift off the handle.
  3. Use an adjustable wrench or pliers to remove the cap that covers the cartridge.
  4. Remove the retaining clip and lift out the cartridge.
  5. Inspect the cartridge for signs of wear or damage. If it's in good condition, clean it with vinegar and reassemble. If it's damaged, replace it with a new one.
  6. Apply plumber's grease to the new cartridge (if applicable) and reinsert it.
  7. Reassemble the faucet in reverse order and test the water flow.
Shower Faucet Leaking? Here’s How to Fix It
Shower Faucet Leaking? Here’s How to Fix It

Ceramic Disc Faucets

Ceramic disc faucets use a ceramic disc assembly to control water flow. Over time, these discs can wear out or become misaligned, causing leaks. Here's how to fix a leaky ceramic disc faucet:

Tools needed: Screwdriver, adjustable wrench, pliers, new ceramic disc assembly (if necessary), plumber's grease.

Replace Shower Diverter in Leaky Tub Spout
Replace Shower Diverter in Leaky Tub Spout
  1. Turn off the water supply and open the faucet to relieve any remaining water pressure.
  2. Remove the handle screw using a screwdriver and lift off the handle.
  3. Remove the escutcheon (the decorative ring around the faucet base) using an adjustable wrench or pliers.
  4. Remove the retaining clip and lift out the ceramic disc assembly.
  5. Inspect the ceramic discs for signs of wear or damage. If they're in good condition, clean them with vinegar and reassemble. If they're damaged, replace them with a new assembly.
  6. Apply plumber's grease to the new ceramic disc assembly (if applicable) and reinsert it.
  7. Reassemble the faucet in reverse order and test the water flow.

Additional Tips and Troubleshooting

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How to Fix a Leaky Showerhead
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If your faucet is still leaking after following the above steps, there may be other issues at play. Here are some additional tips to help you troubleshoot the problem:

Check the O-ring: The O-ring is a small, rubbery seal that helps prevent leaks. If it's worn out or damaged, it can cause leaks. Replacing the O-ring can often fix the problem. To do this, follow the same steps as above, but instead of replacing the cartridge or ceramic disc assembly, replace the O-ring.

Inspect the seat washer: The seat washer is a small, flat washer that sits at the bottom of the faucet. If it's worn out or damaged, it can cause leaks. Replacing the seat washer can often fix the problem. To do this, you'll need to remove the faucet's stem and replace the washer.

If you've tried these troubleshooting steps and your faucet is still leaking, it may be time to call a professional plumber. They have the tools and expertise to diagnose and fix complex plumbing issues.

Regular maintenance can help prevent leaks and prolong the life of your shower faucet. Make it a habit to inspect your faucet regularly for signs of wear or damage, and address any issues promptly. With a little care and attention, your shower faucet should provide years of reliable service.

In the end, fixing a leaky shower faucet is a rewarding DIY project that can save you money and water. With a little patience and the right tools, you can have your shower back in working order in no time. So, don't let that dripping faucet drive you crazy - take action and fix it today!