What you need
An adjustable spanner and a roll of thread tape depending on the shower head. Everything else the job needs comes with the new shower head.
Step 1: Get the right shower head first
Australian homes typically use a half-inch BSP thread. Before buying, take a photo of your existing connection or pull the old head off and take it with you. Shower heads sold here must meet standards set by the Australian Building Codes Board. Anything on the shelf at a reputable hardware store such as Bunnings should be compliant, but matching the thread type is still on you.
Step 2: Leave the mains alone
Unlike working on taps, you do not need to shut the water off at the meter for this. Close the shower tap, and the pressure is gone from that line. Simple.
Step 3: Remove the old shower head
One hand on the shower arm to keep it from moving, spanner on the fitting, anticlockwise. The arm staying still is the important part. If it rotates while you are loosening the head, stop immediately. A loose arm means there could be a pipe problem inside the wall that needs a licensed plumber, not more force from you.
Stuck fitting? Use WD40 or CRC, wait ten minutes, then try again. Once it is off, clean the threads on the arm before you do anything else.
Not comfortable getting into it yourself? Ezy-Plumb handles shower head replacements across Bayside Melbourne with upfront pricing. Book online today.
Step 4: Wrap the threads
Four to five clockwise wraps of thread tape around the shower arm threads. Pull it firm so it sits into the thread rather than loosely on top. This is your seal. The Victorian Building Authority is clear that even DIY plumbing work should use materials meeting Australian standards thread tape is the baseline here, and skipping it is how most leaks happen.
Step 5: Fit the new head
Start by hand-tightening it onto the arm. Once it will not go any further by hand, use the spanner for half a turn to one full turn. That is genuinely all it needs. The tape is what creates the seal and cranking it harder will only crack the fitting or strip the thread. If the new head came with a rubber washer already inside the fitting, check the instructions first. Many manufacturers will tell you tape is not needed at all.
Step 6: Test before you call it done
Run the shower for a full minute and keep your eye on the joint the whole time. Still dripping? More tape is the fix, not more tightening. Dry everything off, add another wrap or two and reassemble.
While you are upgrading, check the WELS water efficiency rating on your new head. The Australian Competition and Consumer Commission notes these ratings help households make informed choices about water use. A three-star rated head uses meaningfully less water per minute with no real difference in how the shower feels.
If something does not look right
Some things a new shower head simply cannot fix. If the arm is moving around, the fitting is cracked, or you keep getting a leak no matter how much tape you use, that is the job telling you it is bigger than a simple swap. Call a licensed plumber and save yourself the frustration.
Ezy-Plumb completes shower repairs and installations across Bayside Melbourne. Upfront pricing, no surprises, lifetime labour guarantee. Book online or call 0402 169 096.
FAQs
Q: Do I need a licence to replace a shower head in Australia?
Ans: No. Swapping a shower head is legal DIY and pretty much anyone can do it. Where that change is the pipework inside the wall. Touch that and you need a licensed plumber on the job.
Q: Do I need to turn the water off at the mains?
Ans: No. Just turn the shower tap off. There is no live pressure at the fitting once the tap is closed.
Q: What is thread tape and do I really need it?
Ans: It is a thin white tape that seals the threaded joint. Yes, use it. It costs almost nothing and prevents most leaks.
Q: My new shower head is still dripping at the joint. What should I do?
Ans: Add more thread tape. Do not just tighten it harder, that usually makes things worse.
Q: How do I know which shower head will fit?
Ans: Most Australian showers use a half-inch BSP thread. Take a photo of your fitting or bring the old head to the store to be sure.
Q: The shower arm moved when I tried to remove the old head. Is that a problem?
Ans: Yes. Stop and call a licensed plumber. A moving arm means the pipe connection inside the wall has failed.
