Overview
A leaky faucet is one of the most common household problems—and one of the easiest to fix. Whether the drip is coming from the handle or the spout, the cause is usually a worn-out washer, O-ring, or cartridge. This guide shows you how to stop the leak quickly using simple tools.
What You’ll Need
- Adjustable wrench
- Screwdriver
- Replacement O-ring or cartridge (depending on faucet type)
- Plumber’s grease
- Microfiber cloth
Step 1 — Turn Off the Water
Locate the shutoff valves under the sink and turn them clockwise to close. Open the faucet to release any remaining water. If you’re also fixing other bathroom issues, see our guide on how to fix a running toilet.
Step 2 — Remove the Handle
Use a screwdriver to remove the handle screw. Lift the handle off to expose the internal components. Some faucets have decorative caps covering the screw—pry them off gently.
Step 3 — Identify Your Faucet Type
- Cartridge faucet: Most common; uses a replaceable cartridge.
- Compression faucet: Uses rubber washers that wear out over time.
- Ceramic disc faucet: Uses durable ceramic plates but may need O-ring replacement.
Step 4 — Replace the Worn Part
Remove the cartridge, washer, or O-ring using an adjustable wrench. Replace it with a matching part. Apply plumber’s grease to ensure smooth operation.
Step 5 — Reassemble the Faucet
Reinstall the handle and tighten the screw. Turn the water back on and test for leaks. If you’re cleaning the sink area afterward, see our guide on how to clean a stainless steel sink.
Step 6 — When to Call a Professional
If the faucet continues leaking after replacing the internal parts, the valve seat may be damaged. In that case, professional repair may be needed.