How to fix a dripping faucet
To fix a dripping faucet, shut off the valves under the sink, plug the drain, take off the handle, and pull out the worn part inside, which is a cartridge on most single-handle faucets and a rubber washer on older two-handle ones. Take the old part to the store to match it exactly, fit the new one, and turn the water back on slowly.
About 40 minutes to learnTake care: injury or damage if careless
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How to do it
- Turn both supply valves under the sink clockwise until they stop, then open the faucet to drain the line.
- Put the plug in the drain and lay a towel in the basin so small screws cannot disappear.
- Pry off the decorative cap on the handle, remove the screw underneath, and lift the handle away.
- Photograph each part as it comes off, then remove the retaining nut or clip holding the cartridge or stem.
- Pull the cartridge or stem straight out and take it to a hardware store to buy an identical one.
- Fit the new part the same way round as the old one, and reassemble in reverse order using your photos.
- Open the supply valves slowly, run the faucet, and check for drips at the spout and under the sink.
Stop and call a professional if
- The shutoff valves under the sink will not turn or leak when you turn them.
- Parts are corroded solid or the faucet body is cracked.
- Water leaks from the supply lines or the pipe connections, not the spout.
Common mistakes
- Forgetting to shut off the water before loosening anything.
- Buying a part from memory instead of matching the old one.
- Overtightening the retaining nut, which cracks plastic parts.
- Putting a cartridge back rotated, which swaps hot and cold.
Quick self-check
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Teach: How to fix a dripping faucet
What to say
To fix a dripping faucet, shut off the valves under the sink, plug the drain, take off the handle, and pull out the worn part inside, which is a cartridge on most single-handle faucets and a rubber washer on older two-handle ones. Take the old part to the store to match it exactly, fit the new one, and turn the water back on slowly.
What to show, in order
- Turn both supply valves under the sink clockwise until they stop, then open the faucet to drain the line.
- Put the plug in the drain and lay a towel in the basin so small screws cannot disappear.
- Pry off the decorative cap on the handle, remove the screw underneath, and lift the handle away.
- Photograph each part as it comes off, then remove the retaining nut or clip holding the cartridge or stem.
- Pull the cartridge or stem straight out and take it to a hardware store to buy an identical one.
- Fit the new part the same way round as the old one, and reassemble in reverse order using your photos.
- Open the supply valves slowly, run the faucet, and check for drips at the spout and under the sink.
When to stop and call a professional
- The shutoff valves under the sink will not turn or leak when you turn them.
- Parts are corroded solid or the faucet body is cracked.
- Water leaks from the supply lines or the pipe connections, not the spout.
The check question
Ask: What is the first step?
Related skills
- Where is my main water shutoff
- How to unclog a sink without chemicals
- Tools every man should own
- Every skill in Home Fixes
Words on this page
Sources
- Faucet maker's repair instructions for your model, per model. Checked September 28, 2026.
Last reviewed . First published .