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How to Fix a Leaky Faucet

Learn how to fix a leaky faucet by shutting off water, identifying faucet type, replacing washers, cartridges, O-rings, or seats, avoiding mistakes, and troubleshooting.

Home & RepairsEdited by Pramod Tiwari
2 min read
Process overview for Fix a Leaky Faucet
A concise overview of the main steps in this guide.

Quick Answer

To fix a leaky faucet, turn off the water supply, plug the drain, identify the faucet type, remove the handle, inspect the cartridge, washer, O-ring, or valve seat, replace worn parts with matching pieces, reassemble, then turn water on slowly and test for leaks.

Tools and Parts

  • Adjustable wrench
  • Screwdrivers
  • Allen key set
  • Replacement cartridge, washer, or O-rings
  • Plumber grease
  • Towel
  • Bucket
  • Phone photo of parts

Safety Precautions

  • Shut off water before disassembly.
  • Cover the drain so small parts do not fall in.
  • Do not force stuck parts because fixtures can crack.
  • Call a plumber if shutoff valves leak, pipes are corroded, or the leak is inside the wall.

Step-by-Step Instructions

  1. Step 1

    Locate shutoff valves

    Turn off hot and cold water under the sink, then open the faucet to release pressure.

  2. Step 2

    Plug the drain

    Use a stopper or towel to keep screws and small parts from falling in.

  3. Step 3

    Identify faucet type

    Common types include cartridge, compression, ball, and ceramic disc faucets.

  4. Step 4

    Remove handle carefully

    Take photos as you remove caps, screws, handles, and retaining clips.

  5. Step 5

    Inspect worn parts

    Look for damaged washers, cartridges, O-rings, seals, or valve seats.

  6. Step 6

    Match replacements

    Bring old parts or model information to the store to get the correct replacement.

  7. Step 7

    Reassemble and test

    Put parts back in order, turn water on slowly, and check for leaks.

Practical Example

Example: A bathroom faucet drips from the spout. You shut off water, remove the handle, replace a worn cartridge with the matching model, and test both hot and cold sides.

Common Mistakes

  • Forgetting to shut off water
  • Dropping screws into drain
  • Buying the wrong cartridge
  • Overtightening fittings
  • Mixing hot and cold parts
  • Ignoring leaking shutoff valves

Troubleshooting

The faucet still drips

Check whether the correct part was replaced and inspect the valve seat or second handle.

Handle leaks after repair

Check O-rings, packing nut, or cartridge alignment.

Water will not shut off

Stop and call a plumber if the shutoff valve fails.

Part is stuck

Use the correct puller or professional help rather than forcing it.

When to Get Help

  • Shutoff valves do not work.
  • Pipes or fixture parts are corroded.
  • Leak is inside a wall or cabinet.
  • You cannot identify the part.
  • Repair attempts worsen the leak.

FAQs

What causes a faucet to drip?

Worn washers, cartridges, O-rings, seals, or valve seats are common causes.

Can I fix a leaky faucet myself?

Many simple leaks are DIY-friendly if shutoff valves work and parts are accessible.

How do I know what cartridge to buy?

Use the faucet brand/model or bring the old cartridge to match it.

Why does the faucet leak from the handle?

Handle leaks often involve O-rings, packing, or cartridge seals.

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