How to Fix a Leaking Bathtub Faucet?

There are many bathtub faucet products on the market, with a wide range of brands and styles. Most buyers choose a faucet based on water output specifications first, and then by appearance. Many modern designs feature a simple, elegant look—perfect for younger homeowners. But what happens when your bathtub faucet starts to leak? Here's how to fix it step by step.

1. Close the Water Inlet Valve

Remove the small screws on or behind the handle to detach it from the body. Some screws are hidden under caps or decorative covers—flip them open to access the screw. If the screw is stuck, apply some grease or lubricant.

2. Remove the Handle

Use a wrench to loosen the fixing nut carefully—avoid scratching the metal surface. Turn the spool in the same direction you normally turn the faucet on. Observe the internal parts of the faucet.

3. Unscrew and Remove the Seal

If the seal screw is tight, use penetrating oil. Check for rust or damage on the screw and spool. Replace any worn parts with new ones.

4. Replace the Old Seal

Install a new seal that matches the original one in shape and material. Some seals are angled or flat—match accordingly. Also ensure the seal supports hot water use. Cold-only seals may expand in hot water, blocking flow.

5. Reassemble the Faucet

Attach the new seal to the cartridge. Turn the spool clockwise to install it. Re-tighten the nut, being cautious with tools to prevent surface damage.

6. Test for Leaks

Reinstall the handle and cover button. Turn the water supply back on and check if the leak is resolved.

Maintenance Tips

There are many possible causes of bathtub faucet leakage, so identifying the issue before repair is key. Although faucets aren’t expensive, proper care extends their lifespan:

• Always turn the handle slowly to prevent damage or loosening.
• Avoid quickly opening the faucet—it may cause pressure damage or failure to close properly.
• If the faucet is clogged, remove and clean the spout aerator.

By following these steps and taking care during use, you can easily fix and maintain your bathtub faucet without needing to replace it frequently.