Fixing a Leaky Faucet: A Step-by-Step Guide

Fixing a Leaky Faucet: A Step-by-Step Guide

Why This Matters

• A leaky faucet can waste hundreds of gallons of water per year, raising utility bills.
• It’s usually a simple DIY fix that requires only basic tools.
• Tackling it yourself builds confidence for bigger home repairs.

Tools & Materials Needed

• Adjustable wrench or basin wrench
• Screwdriver (Phillips or flathead depending on faucet)
• Replacement washers or cartridge (depending on faucet type)
• Plumber’s tape
• Small towel or bucket (to catch drips)

Step-by-Step Instructions

1. Turn Off the Water Supply
• Locate the shut-off valves under the sink.
• Turn clockwise to stop water flow.
2. Plug the Drain
• Use a sink plug or rag to prevent small parts from falling in.
3. Disassemble the Faucet Handle
• Remove decorative caps if present.
• Unscrew the handle and lift it off.
4. Inspect the Cartridge or Washer
• Compression faucets: check the rubber washer at the end of the stem.
• Cartridge faucets: inspect the cartridge for cracks or wear.
5. Replace the Faulty Part
• Swap out the washer or cartridge with a new one.
• Wrap threads with plumber’s tape before reassembly.
6. Reassemble the Faucet
• Tighten screws and handle back in place.
• Ensure everything is snug but not overtightened.
7. Turn Water Back On & Test

• Slowly reopen the shut-off valves.
• Run water and check for leaks.

Common Mistakes to Avoid

• Forgetting to shut off water before starting.
• Mixing up washer sizes—always bring the old one to the hardware store.
• Overtightening screws, which can crack parts.

When to Call a Pro

• If the faucet still leaks after replacing washers/cartridge.
• If you notice corrosion or damage to the valve seat.
• If water pressure issues persist beyond the faucet.

Print-Friendly Checklist

• Shut off water supply
• Plug drain
• Remove faucet handle
• Inspect washer/cartridge
• Replace faulty part
• Reassemble faucet
• Test for leaks