How to Fix a Leaking Bathroom Tap

Have you noticed water leaking behind your taps or a constant drip from your bathroom sink? It may seem like a small problem, but over time it wastes thousands of litres of water, increases your bills, and can cause hidden damage around sinks and walls.

The good news? Most leaks are easy to identify, and with the right approach, you can often repair them yourself or know when it’s time to call in a professional plumber. Let’s get started.

Common Reasons Taps Leak

Before you start to fix leaking taps, it’s worth knowing why taps start to leak in the first place. Leaking taps usually come down to a few common issues:

• The small rubber parts called worn washers or O-rings that wear out with use.
• Everyday turning off taps can loosen the fitting parts time.
• A buildup of debris or rust can prevent a tight seal.
• Water pressure problems force water through weak points.
• Sometimes the problem isn’t the tap but the hidden leaks or pipework behind it.

5 Steps to Fix a Dripping Tap

1. Turn Off the Water

The first and most important step is to shut off your water supply. Look for the mains or local isolation valve under the sink if needed to prevent flooding. .

2. Take the Tap Apart

Carefully remove the tap handle and cover. Unscrew the spindle or cartridge, keeping the parts in order so you can put them back together easily. Place a towel or plug in the sink so small screws don’t disappear down the drain.

3. Check Washers and O-Rings

The common culprit behind leaking taps could be the worn-out washer or O-ring. If worn, cracked, or stiff, replace it with a new one. You can find the parts inexpensive and easy to find at most hardware stores.

4. Clean and Reassemble

While the tap is apart, clean out any dirt, rust, or limescale that could stop a tight seal. Then reassemble the tap carefully and make sure parts are fitted back in the right order.

5. Test It Out

Turn the water supply back on slowly and test the tap. If the drip has stopped, you’ve solved the problem! And if the leak is still there or worse, coming from behind the wall, then it's time to let the expert plumbers do the job.

When to Call a Professional Plumber

While many tap leaks are DIY-friendly, some need professional attention. Call a licensed emergency plumber if:

• The leak comes from behind the wall or vanity unit.
• You notice damp patches, mould, or soft plaster around the tap.
• Washers keep wearing out quickly, which means it’s a sign of pressure issues.
• The leak continues after you’ve replaced the obvious parts.

For reliable and trusted plumbing service, Your Local Tradesman specialises in Adelaide leaking bathroom tap repair and emergency tap leak repair when urgent help is needed.

Visit Your Local Tradesman for expert plumbing services near you.

Preventing Future Leaks

Prevention is always cheaper than repair. Here’s how to stop leaks before they start:

• Avoid overtightening taps gentle pressure is enough.
• Replace washers at the first sign of wear.
• Clean taps regularly to prevent mineral buildup.
• Get your water pressure tested if leaks happen often.
• Schedule annual plumbing maintenance to catch issues early.

Stop the Leak Before It Grows

If you’ve spotted a leak behind your taps, don’t ignore it. Start with the basics, like turning off your water supply, checking your washers, and inspecting your fittings. With a few simple tools, many bathroom tap leaks can be fixed at home.

But if the leak persists, runs behind walls, or causes visible water damage, the smartest move is to call in a licensed plumber. At Your Local Tradesman, we’re experts in Adelaide leaking bathroom tap repair, tap replacement, and emergency plumbing services, keeping your home safe, dry, and efficient.

Frequently Asked Questions about Fixing Leaking Bathroom Taps (FAQs)

How much does it cost to fix a leaking bathroom tap in Australia?

DIY repair washer replacement may cost $5 to $20 for parts. For a professional plumber, it's usually $80 to $150 for a standard call-out and repair. Hidden pipe leaks  can rise depending on complexity and repairs needed.

How long does it take to repair a leaking tap?

A simple washer replacement takes 15–30 minutes. But complex leaks behind walls or corroded pipes may take several hours.

Can I fix a leaking tap myself?

Yes, if the issue is a simple washer or O-ring replacement. But for hidden leaks, persistent dripping, or pressure-related problems, it’s best to call a professional plumber.

Is it dangerous to leave a leaking tap unfixed?

Yes. While it may seem harmless, a small leak can waste over 20,000 litres of water per year. It can be a reason to build up hidden mould and rot behind cabinetry. Increase your water bills significantly.

Do all bathroom taps use the same washers?

No. Different taps (compression, mixer, ceramic disc) require different washers or cartridges. Always take your old part to the store for an exact match.