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A shower head that keeps dripping after you've turned the water off, or leaks from around its connection while you're showering, is more than a minor irritant. Left alone, it can waste hundreds of litres of water a month and, in some cases, point to a problem building up behind your bathroom wall.
Most leaking shower head issues come down to a small, inexpensive part failing, and many homeowners can fix them without calling a plumber. This guide covers how to work out what's causing the leak, how to fix it yourself, and when the problem is bigger than the shower head itself.
Where Is the Leak Actually Coming From?
The first step is figuring out exactly where the water is escaping, since the fix is different depending on the location.
Dripping from the shower head itself
If water continues to drip from the nozzle after the tap is off, the issue is almost always inside the shower head or the mixer valve controlling it.
Leaking from the connection to the arm
Water pooling or spraying from where the shower head screws onto the shower arm points to a worn washer or loose connection at that joint.
Leaking from the wall behind the shower
If you notice damp patches, bubbling paint or water stains on the wall near the shower, the leak may be inside the wall cavity rather than at the shower head at all.
Common Causes of a Leaking Shower Head
Worn rubber washer
The small rubber washer inside the shower head connection hardens and cracks over time, especially with the Gold Coast's mineral-rich water supply, which lets water seep out at the joint.
Clogged or damaged shower head
Mineral build-up (limescale) inside an older shower head can force water out through unintended gaps rather than just the nozzle holes, creating what looks like a leak.
Faulty shower mixer valve
If the shower head still drips well after the tap is closed, the diverter or mixer valve behind the wall may not be sealing fully, which is a different repair to the shower head itself.
Loose or cross-threaded connection
If the shower head wasn't screwed on evenly, or the thread has worn down over years of removal for cleaning, it may never seal properly no matter how tight you make it.
How to Fix a Leaking Shower Head Yourself
- Turn off the water supply at the isolation valve before starting any work on the fitting.
- Unscrew the shower head from the arm by hand, or use pliers wrapped in a cloth if it's stuck, turning counter-clockwise.
- Inspect the washer inside the connection point. If it's cracked, flattened or missing, this is very likely your leak.
- Replace the washer with a new one of matching size, available cheaply from any hardware store.
- Clean mineral build-up from the shower head nozzles by soaking it in a mix of white vinegar and water for 30 minutes, then scrubbing the holes with an old toothbrush.
- Wrap the thread with plumber's tape before reattaching, which helps create a tighter, more reliable seal.
- Reattach the shower head by hand first, then tighten gently with pliers wrapped in cloth to avoid scratching the finish.
- Turn the water back on and run the shower to check the connection and nozzle for any remaining drips.
When to Replace the Shower Head Instead of Repairing It
Sometimes a repair isn't worth the effort. Consider a full replacement if:
- The shower head is more than 8 to 10 years old
- Mineral build-up is severe and doesn't clear with vinegar soaking
- The connection thread is worn or stripped
- You want to upgrade to a water-efficient, WELS-rated shower head, which can also lower your water bill
Replacing a shower head is usually a straightforward job that takes less than 15 minutes and costs far less than a professional callout, provided the leak isn't coming from inside the wall.
When to Call a Professional Plumber
Some leaks aren't fixable with a new washer or shower head. Call a licensed plumber if:
- The dripping continues even with the tap fully off, which points to the mixer valve
- You see water stains, bubbling paint or mould on the wall around the shower
- Water pressure to the shower has dropped noticeably along with the leak
- The shower arm itself is loose or leaking from where it meets the wall
A leak inside the wall cavity can cause serious hidden damage over time, so it's worth having a plumber inspect it properly rather than assuming a new shower head will solve it. If you're dealing with a persistent leak in your Gold Coast bathroom, reach out to our team for a proper diagnosis.
Preventing Future Leaks
- Clean mineral build-up from your shower head every three to four months
- Avoid over-tightening the connection, which stresses the washer and thread
- Use plumber's tape whenever reattaching a shower head
- Have your water pressure checked periodically, since high pressure accelerates wear on fittings
Final Thoughts
A leaking shower head is usually one of the cheapest and quickest plumbing fixes in the house, provided the problem is isolated to the fitting itself. If the leak persists after a repair, or you notice signs of water getting into the wall, that's the point to bring in a licensed plumber rather than keep guessing.
Call Coastal Plumbing Professionals on 1300 590 085 for shower and bathroom plumbing repairs across the Gold Coast.
Frequently Asked Questions
Why does my shower head still drip after I turn the tap off?
This usually means the mixer or diverter valve behind the wall isn't sealing fully, which is a different issue to the shower head and typically needs a plumber to repair.
Can I fix a leaking shower head without any tools?
Often, yes. Many shower heads unscrew by hand, and a replacement washer or a vinegar soak to clear limescale can be done with no special tools at all.
How often should I replace my shower head?
Most shower heads last 8 to 10 years. If yours is older than that, or repairs keep failing, it's usually more cost-effective to replace it.
Is a leaking shower head actually wasting much water?
Yes. A continuously dripping shower head can waste hundreds of litres a month, which adds up noticeably on your water bill over a year.
When should I worry about water damage from a shower leak?
If you see stained, bubbling or soft wall material near the shower, treat it as urgent. Hidden leaks behind tiles can cause structural damage if left unaddressed.
Resources
- WELS water efficiency labelling | Australian Government
- AS/NZS 3500 Plumbing and Drainage Standards
- Save water at home | Queensland Government
