A dripping faucet is usually caused by a worn-out washer, cartridge, O-ring, loose component, or damaged valve seat. Besides being annoying, a constant leak can waste water and may eventually cause staining or damage around the sink.

The good news is that many faucet leaks can be fixed with basic tools and replacement parts.

✅ Common Signs of a Leaking Faucet

• Faucet continues dripping after being turned off
• Water leaks around the handle
• Water comes from the base of the faucet
• Faucet handle feels loose
• Water pressure has decreased
• Faucet makes unusual noises
• Dripping gets worse over time

🛠 Tools You May Need

✔ Adjustable wrench
✔ Screwdriver
✔ Allen key set
✔ Replacement washer or cartridge
✔ Replacement O-rings
✔ Plumber’s silicone grease
✔ Clean cloth
✔ Bucket or small bowl

Tip: Take the old part with you when buying a replacement so you can match the size and type.

⚠️ Before You Start

Before removing any faucet components:

• Turn off the water supply valves beneath the sink.
• Open the faucet to release remaining water pressure.
• Place a towel or bucket underneath the faucet.
• Keep small screws and parts somewhere safe.
• Don’t overtighten plumbing connections.

🛠 Step-by-Step Faucet Dripping Fix

1️⃣ Identify Where the Faucet Is Leaking

First, determine where the water is coming from.

Dripping from the spout

Usually caused by a worn:

• Washer
• Cartridge
• Valve component

Leaking around the handle

Often caused by:

• Worn O-ring
• Damaged cartridge
• Loose handle or retaining nut

Leaking from the base

May indicate:

• Damaged O-rings
• Loose faucet components
• Worn seals

Identifying the leak location makes the repair much easier.

2️⃣ Turn Off the Water Supply

Look underneath the sink for the hot and cold water shutoff valves.

Turn them clockwise to shut off the water.

Then open the faucet briefly to make sure the water has stopped.

3️⃣ Remove the Faucet Handle

The exact design varies by faucet.

Look for a small screw:

• Under a decorative cap
• On the side of the handle
• At the back of the handle

Remove the screw with the appropriate screwdriver or Allen key and carefully lift the handle away.

4️⃣ Remove the Retaining Nut or Clip

Depending on the faucet design, you may find:

• Retaining nut
• Locking clip
• Cartridge retaining ring

Use an adjustable wrench if necessary.

Turn carefully to avoid damaging the faucet body.

🔧 Fixing a Compression Faucet

If your faucet has separate hot and cold handles and uses a traditional compression mechanism, a worn washer is a common cause of dripping.

Steps:

1. Remove the handle.
2. Remove the stem assembly.
3. Locate the rubber washer at the end.
4. Remove the old washer.
5. Install a matching replacement washer.
6. Reassemble the stem.
7. Reinstall the handle.

Turn the water back on slowly and test the faucet.

🔧 Fixing a Cartridge Faucet

Many modern faucets use a cartridge.

Steps:

1. Remove the handle.
2. Remove the retaining clip or nut.
3. Pull out the old cartridge.
4. Clean any debris from the valve opening.
5. Install the replacement cartridge in the same orientation.
6. Reinstall the retaining hardware.
7. Put the handle back on.
8. Turn the water supply back on.

Test both hot and cold operation.

🔧 Replace Worn O-Rings

If water leaks around the faucet base or handle:

1. Disassemble the affected section.
2. Remove the old O-ring.
3. Clean the groove.
4. Apply a small amount of plumber’s silicone grease if appropriate.
5. Install the new O-ring.
6. Reassemble the faucet.

Make sure the replacement O-ring is the correct size.

🧼 Clean the Faucet Aerator

Sometimes mineral deposits restrict water flow and contribute to faucet problems.

Steps:

1. Unscrew the aerator from the end of the faucet.
2. Rinse away loose debris.
3. Soak the aerator in white vinegar if mineral deposits are present.
4. Rinse it thoroughly.
5. Reinstall it.

Don’t force a stuck aerator, as you can damage the faucet finish.

🔩 Check for Loose Connections

If the faucet is leaking underneath the sink:

• Check the supply-line connections.
• Check mounting hardware.
• Look for cracked or damaged hoses.

Tighten connections carefully.

Don’t overtighten, as excessive force can damage fittings.

🧪 Test the Faucet

After completing the repair:

1. Turn the water supply valves on slowly.
2. Open the faucet.
3. Run hot and cold water.
4. Turn the faucet off completely.
5. Watch the spout for several minutes.
6. Check underneath the sink for leaks.

If no water appears, the repair was successful.

⭐ Prevention Tips

✔ Don’t force faucet handles.
✔ Clean mineral buildup regularly.
✔ Repair small leaks quickly.
✔ Avoid using excessive force when turning valves.
✔ Replace worn washers and O-rings when needed.
✔ Keep the faucet aerator clean.

🚨 When to Call a Plumber

Professional help may be necessary if:

• The faucet body is cracked.
• The valve inside the wall is leaking.
• Water continues leaking after replacing the cartridge or washer.
• Connections are badly corroded.
• You cannot shut off the water supply.
• There is significant water damage underneath the sink.
• The leak appears to be coming from inside the wall.

❓ Frequently Asked Questions

Why does my faucet keep dripping after I turn it off?

A worn washer, cartridge, O-ring, or valve component is usually responsible. Mineral buildup or a damaged valve seat can also cause continuous dripping.

Can I fix a dripping faucet myself?

Yes. Many faucet leaks can be repaired with basic tools and the correct replacement washer, cartridge, or O-ring.

Should I replace the whole faucet?

Not necessarily. If the faucet body is in good condition, replacing the worn internal component is usually enough.

Why is my faucet leaking from the handle?

A damaged O-ring, cartridge, or loose internal component can allow water to escape around the handle.

✅ Final Words

A dripping faucet doesn’t always require a plumber. In many cases, replacing a worn washer, cartridge, or O-ring can stop the leak and restore normal operation.

Start by identifying where the water is coming from, shut off the water supply, replace the appropriate worn component, and carefully test the faucet afterward.

If the faucet is severely corroded, cracked, or leaking from inside the wall, professional plumbing assistance is the safer option.