Step-by-Step Guide: Fixing a Leaking Mixer Tap in Minutes
A leaking mixer tap isn’t just annoying—it wastes water, drives up bills, and can even damage your cabinetry over time. Whether you’ve spotted a drip from the spout, a leak around the base, or a constant trickle that just won’t stop, you’re in the right place.
At SEQ Pipeworks, we help Gold Coast locals fix taps fast—and now, so can you.
In this easy-to-follow guide, we’ll walk you through how to fix a leaking mixer tap, including common causes, the tools you’ll need, and how to stop the drip for good. If you’re tired of googling “how to stop a dripping mixer tap,” read on.
What Causes a Mixer Tap to Leak?
Mixer taps, which blend hot and cold water into a single stream, are sleek and modern—but they’re also prone to a few common issues:
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Worn-out washers or O-rings: These seals wear down and cause leaks around the base or handle.
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Faulty ceramic cartridge: Controls water flow and temperature. When it fails, the tap drips—even when off.
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Corroded or loose components: Over time, parts inside the tap body or around the swivel base may deteriorate.
Understanding the source of your leak is key to a lasting fix.
Tools You’ll Need
Before getting started, gather the following tools:
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Adjustable spanner (shifter)
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Flathead screwdriver
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Allen key (2mm–2.5mm)
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New cartridge, O-ring, or washers
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Thread seal (plumber’s) tape
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Plumber’s grease
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Rag and bucket
How to Fix a Leaking Mixer Tap (Step-by-Step)
Step 1: Turn Off the Water
Locate the isolation valves under your sink. These usually control the water flow to your kitchen or bathroom taps. Turn both hot and cold lines off, and then open the tap to drain any remaining water.
Step 2: Remove the Tap Handle
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Use a flathead screwdriver to pop off the cover hiding the grub screw (often the hot/cold indicator).
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Insert the correct Allen key to loosen and remove the screw.
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Gently slide the tap handle off the body.
Step 3: Dismantle the Tap Body
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Use your wrench to loosen the decorative cap or dome cover.
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Beneath it, you’ll see the cartridge or spindle assembly.
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Unscrew the retaining nut and gently pull out the cartridge or internal parts.
Step 4: Inspect and Replace Faulty Parts
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If leaking from the spout: Replace the ceramic cartridge.
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If leaking from the base or handle: Replace washers and O-rings.
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Clean all parts with vinegar or a soft brush if reusing.
Step 5: Reassemble the Tap
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Apply thread seal tape where needed.
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Lubricate O-rings with plumber’s grease.
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Reassemble the tap in reverse order, making sure each part is secure but not overtightened.
Step 6: Test the Tap
Turn your water back on and test your handiwork. If the leak is gone, you’re done!
How to Prevent Mixer Tap Leaks in the Future
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Don’t over tighten handles—it speeds up wear on the cartridge and seals.
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Clean your tap aerators regularly to prevent pressure build-up.
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Get regular plumbing maintenance from a professional (Gold Coast locals—give SEQ Pipeworks a call!).
When to Call a Professional Plumber
Some tap leaks are too complex for DIY, especially if:
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The leak persists after replacing parts.
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You can’t identify the leak source.
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The tap is built into a stone or tiled surface, making access difficult.
If you’re on the Gold Coast or in Queensland, SEQ Pipeworks is just a call away for expert leaking tap repairs.
Why Choose SEQ Pipeworks?
We’re a trusted name in local plumbing across Gold Coast and QLD. Our team handles everything from leaking taps and blocked drains to full bathroom renovations. Quick response, honest pricing, and five-star service every time.
FAQ – High-Volume Questions About Mixer Tap Leaks
1. How do I fix a dripping mixer tap in the kitchen?
Turn off the water, dismantle the tap handle, and replace the cartridge or O-rings depending on the leak location.
2. Why is my mixer tap leaking from the base?
This usually means worn O-rings. Remove the handle and spout to replace them and apply plumber’s grease.
3. Can I stop a dripping tap without replacing the cartridge?
Sometimes cleaning mineral buildup can help temporarily, but replacing worn parts is the only long-term solution.
4. What size Allen key do I need to remove a mixer tap handle?
Most mixer taps in Australia use a 2mm or 2.5mm Allen key to access the grub screw.
5. How long does it take to fix a leaking tap?
A standard repair takes around 15–30 minutes, provided you have the correct parts and tools ready.
