Leaking Faucet

Fix a leaking faucet yourself or find out what a plumber charges. Step-by-step guide, tools needed, and cost estimate ($75–$250).

Typical repair cost: $75–$250 · DIY difficulty: Moderate · About 30–45 minutes.

What usually causes it

• Worn O-ring
• Corroded valve seat
• Worn-out cartridge
• Damaged washer
• Loose parts

What you need

• Flathead screwdriver
• Allen wrench
• Replacement cartridge or washer

How to fix it yourself

1. Turn off the water supply under the sink
2. Remove the faucet handle (usually a screw under the cap)
3. Pull out the cartridge or stem
4. Replace the worn washer, O-ring, or cartridge
5. Reassemble and turn water back on
6. Test for leaks

When to call a pro

If the faucet body is corroded or you can't identify the faucet model to find replacement parts.

Get a fixed price from a local pro