How to Change a Tap Washer: Fix a Dripping Tap Like a Pro

Feb 27, 2024

Dripping tap driving you nuts? You’re not alone. A leaky tap can waste thousands of litres of water each year and bump up your water bill unnecessarily. In this easy step-by-step guide, we’ll show you how to change a tap washer, what tools you need, and when to call a professional plumber.

Key Takeaways

✅ A worn-out tap washer is the most common cause of dripping taps.
✅ Replacing a washer is a simple DIY fix that saves water and money.
✅ Ceramic disc taps are a long-term solution for preventing repeat leaks.
✅ If in doubt, get in touch with a professional plumber to avoid damage.

What Is a Tap Washer and What Does It Do?

A tap washer is a small, often rubber component inside your tap that forms a seal to stop water flow. When you turn the tap off, the washer presses against a valve seat, stopping the water.

Over time, tap washers deteriorate due to constant pressure and friction—leading to that annoying, wasteful drip.

Modern upgrade: Newer tapware often uses ceramic disc cartridges instead of rubber washers. Ask our plumbing team about upgrading to ceramic taps for long-term efficiency.

Signs You Need to Replace a Tap Washer

Constant dripping even when the tap is off
Hard-to-turn tap handles
Water hammer or tapping noises in pipes
Leaks from the tap body
Old washers cracking or thinning

Tools You’ll Need

🧰 Get these ready before starting:

Flathead screwdriver
Crescent wrench
Adjustable pliers
Replacement washer (take your old one to match sizes)
Old towel or cloth (to protect surfaces and catch drips)

Step-by-Step: How to Change a Tap Washer

Step 1: Isolate the Water Supply

🔧 Turn off the water at the mains or isolation valve.
💧 Open the tap to release pressure and drain water.

Step 2: Remove Tap Handle & Bonnet

Pry off any decorative covers.
Unscrew the handle with a screwdriver.
Use a wrench to loosen the tap bonnet and expose the washer.

Step 3: Swap the Washer

Unscrew the old washer.
Clean inside the valve body to remove grime or limescale.
Insert the new washer and secure it.

Step 4: Reassemble

Refit the bonnet and screw the handle back on.
Don’t overtighten—it can crush the new washer.

Step 5: Test It

Slowly turn the water back on.
Check for leaks and test the tap for smooth operation.

When Should You Call a Professional?

Not all drips are washer-related. You may need a licensed plumber if:

You’ve replaced the washer but the tap still leaks
The tap body or pipework is damaged
Water pressure is excessively high
You want to install new tapware or mixers

Our licensed plumbers across Brisbane and the Gold Coast can help with fast, reliable tap repairs. Book a service online.

Why Upgrade to Ceramic Disc Taps?

If you’re tired of fixing drips, ceramic disc tapware might be the better option.

Benefits of ceramic taps:

✔️ Long-lasting – They don’t wear out like rubber washers
✔️ Easy to turn – Great for kids or elderly users
✔️ Water-saving – Maintain consistent seal and flow
✔️ Sleek & modern – Update your kitchen or bathroom aesthetic

Explore our tapware upgrades or chat with our experts for tailored advice.

Maintenance Tips to Prevent Drips

Check washers and O-rings yearly
Clean tap aerators to prevent flow blockages
Avoid over-tightening taps
Don’t ignore early drips—fix them before they escalate
Get annual plumbing maintenance for peace of mind

Frequently Asked Questions

1. Are tap washers all the same size?
No—sizes vary by brand and tap type. Take your old washer to the hardware store to match it.

2. What type of washer do I need?
Most standard taps use rubber or nylon washers. For a long-term solution, consider ceramic disc cartridges.

3. Can I change a washer myself?
Yes, with basic tools and care. Just be sure to turn off the water first.

4. What if the tap still leaks after replacing the washer?
Check for worn O-rings or valve seat damage. If unsure, call a licensed plumber.

5. Should I just replace my tap instead?
If it’s an old tap or leaks are frequent, upgrading to ceramic taps is a smart investment.

Final Thoughts

Replacing a tap washer is a simple, low-cost fix that helps conserve water and prevent further plumbing issues. But if leaks persist or you’re ready for an upgrade, the licensed experts at JR Gas & Water are here to help.

🔧 Book Tap Repairs in Brisbane or Gold Coast
🏆 Proudly voted Best Plumbers & Best Home Care Store 2023–2025

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