BATH & SHOWER MIXERS · SOUTH EAST QUEENSLAND

Shower Mixer Replacement Brisbane & Gold Coast

Replacing a concealed bath or shower mixer? Choose our simple Essentials option or upgrade to the Raymor Surrey, with professional installation included.

Concealed Shower Mixers · Bath Mixers · Supply & Installation
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Why does concealed shower mixer replacement cost more?

Replacing a concealed mixer involves gaining access inside the wall, removing the existing mixer body, installing and reconnecting the new mixer and completing the access area — not simply changing the visible handle.

Where access is made through tiled wall surfaces, we use an oversized backing plate to neatly cover the access opening. Painting or plastering, where required, is additional and can be arranged.

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LIVE SHOWER MIXER REPLACEMENT AVAILABILITY
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Shower mixer replacement across Brisbane & Gold Coast

Not sure what is involved in replacing your shower mixer?

Bath and shower mixers are installed inside the wall, so replacing one normally requires access to the concealed mixer body and water pipework. One of our licensed plumbers can inspect the existing installation, determine the best access method and confirm what is required to replace the mixer neatly and safely.

✓ Check concealed mixer & pipework
✓ Confirm the best wall access method
✓ Identify finishing work required
Book Shower Mixer Assessment

Where access is required through tiles, an oversized backing plate can be used to neatly cover the access opening. Where plastering or painting is required, this is additional and can be arranged.

Flexible payment options

View live supplied and installed shower mixer pricing online. Pay securely with Zip, Afterpay, PayPal, Google Pay, Visa or Mastercard .

3 products
Tapware Replacement (Customer Supplied) -
Tapware Replacement (Customer Supplied)
from $249.00
Surrey Bath or Shower Mixer Supplied and Fitted
from $599.00
Essentials Bath or Shower Mixer Supplied and Fitted
from $599.00
BATH & SHOWER MIXERS · SUPPLY & INSTALLATION

Shower Mixer Replacement Brisbane & Gold Coast

Replacing a leaking, damaged or outdated concealed shower mixer? JR Gas & Water supplies and installs bath and shower mixers across Brisbane, the Gold Coast, Logan, Ipswich, Redlands and Moreton Bay. Choose our straightforward Essentials mixer or upgrade to the Raymor Surrey for a more refined bathroom finish.

Concealed mixer replacement

Why Does Replacing a Shower Mixer Cost More Than Replacing a Tap?

Unlike a basin or sink mixer, most bath and shower mixers have their main mixer body concealed inside the wall. Replacing the complete mixer therefore involves accessing the plumbing behind the finished wall rather than simply changing the visible handle.

Access Inside the Wall

The existing concealed mixer body and connected pipework need to be accessed so the old mixer can be removed.

MORE THAN A SIMPLE TRIM CHANGE
Plumbing Modification

The new mixer is positioned and connected to the existing hot, cold and outlet pipework. Some pipework modification is normally required to suit the replacement mixer body.

COMPLETED BY A LICENSED PLUMBER
Finish the Access Area

Where access is made through tiles, an oversized backing plate can be fitted to neatly cover the access opening around the new mixer.

DESIGNED FOR A NEAT FINISHED RESULT
Shower mixers

Concealed Shower Mixer Replacement

A shower mixer combines hot and cold water through a concealed mixer body installed inside the wall. The visible handle controls both water flow and temperature.

When the complete mixer body needs replacing, access is required to the plumbing behind the finished wall. The existing mixer is disconnected, the new mixer is fitted and the hot, cold and shower outlet pipework is connected to the replacement body.

This is substantially more involved than replacing a basin or kitchen mixer because the working components are concealed behind the wall surface.

Bath mixers

Concealed Bath Mixer Replacement

The same type of concealed mixer can also be used to control water to a bath outlet. The mixer receives hot and cold water and sends the mixed water to the bath spout.

Replacement follows a similar process to a shower mixer: access is gained to the concealed body, the old mixer is removed and the new mixer is connected to the existing plumbing.

The selected mixer and existing plumbing arrangement must be suitable for the intended bath or shower application.

Professional installation

What Does a Shower Mixer Replacement Involve?

Complete concealed mixer replacement involves considerably more work than changing the visible handle or cartridge. Our installed options allow for access to the existing mixer and replacement of the concealed mixer body.

01 Gain Wall Access Suitable access is created to reach the concealed mixer body and connected plumbing.
02 Remove Existing Mixer Existing concealed mixer body is disconnected from the hot, cold and outlet pipework.
03 Install New Mixer Replacement mixer is installed and existing pipework modified and connected as required.
04 Test & Finish Mixer operation and connections are tested and the access area is finished using the appropriate method for the installation.
Tiled bathroom walls

What Happens If the Mixer Is Behind Tiles?

Where suitable rear access is not available, the concealed mixer may need to be accessed through the tiled face of the shower or bathroom wall.

In these installations, the opening can be neatly finished using an oversized backing plate behind the new mixer trim. The backing plate is sized to cover the access opening while providing a clean, intentional finished appearance.

Tiled-wall replacement can include: ✓ Access to concealed mixer body ✓ Removal of existing mixer ✓ Installation of replacement mixer ✓ Required plumbing connections ✓ Oversized backing plate where applicable ✓ Testing and commissioning
Rear wall access

Can the Mixer Be Accessed From Behind?

Where the opposite side of the shower wall is accessible, rear access may be an option. This can sometimes avoid creating an opening through the tiled face of the shower.

The most suitable access method depends on the wall construction, location of the mixer and what is positioned on the opposite side of the wall.

Finishing work

What About Plastering & Painting?

Where plastering or painting is required after access has been made, this work is additional to the plumbing installation and can be arranged.

Where access is through a tiled wall and an oversized backing plate is suitable, the plate is used to cover the opening rather than attempting to match and replace individual existing tiles.

Replacement compatibility

Can Any Shower Mixer Replace My Existing Mixer?

Concealed mixer bodies are not all identical. Their overall size, inlet positions, outlet position and installation depth can vary, so replacing the complete mixer normally requires changes to the pipework behind the wall.

This is why the installation price covers replacement of the concealed mixer rather than assuming the new product will simply screw directly onto the existing body.

We consider: ✓ Existing mixer location ✓ Hot and cold pipe positions ✓ Shower or bath outlet connection ✓ Wall depth and mixer depth ✓ Available access ✓ Finished wall surface
Repair or replacement?

Do You Need a Complete New Shower Mixer?

Not every leaking or difficult-to-operate shower mixer needs the concealed body replaced. Some faults can be repaired from the front of the mixer without opening the wall.

Cartridge Fault

A dripping mixer or stiff handle may sometimes be caused by a replaceable cartridge or seal that can be serviced through the front trim.

REPAIR MAY BE POSSIBLE
Concealed Body Failure

If the mixer body itself is leaking, damaged or otherwise unsuitable, access inside the wall is normally required to replace the complete mixer.

COMPLETE REPLACEMENT MAY BE REQUIRED
Bathroom Upgrade

A complete replacement may also be chosen where the existing mixer is old, parts are difficult to obtain or the customer wants to update the bathroom tapware.

BEST FOR: OLDER OR OUTDATED MIXERS
Common shower mixer problems

Why Replace a Bath or Shower Mixer?

Concealed mixers can remain in service for many years, but mechanical wear, leaks and ageing components can eventually make repair or complete replacement necessary.

Leaking shower mixer Stiff mixer handle Damaged cartridge Concealed body leak Poor temperature control Loose mixer trim Corroded components Obsolete repair parts Repeated mixer faults Bathroom renovation Outdated tapware Bath or shower upgrade
JR Gas & Water

Shower Mixer Replacement Across South East Queensland

JR Gas & Water provides complete concealed bath and shower mixer replacement with online product selection, live pricing and installation booking options.

Licensed Plumbing Installation Concealed bath and shower mixers installed and connected by JR Gas & Water's plumbing team.
Complete Mixer Replacement Pricing accounts for gaining access, removing the existing concealed body and installing the replacement mixer.
Tiled-Wall Solutions Oversized backing plates can be used where suitable to neatly cover tiled access openings.
Finishing Can Be Arranged Where plastering or painting is required, this additional finishing work can be arranged.
Shower mixer replacement FAQs

Common Questions About Replacing a Shower Mixer

Why is shower mixer replacement more expensive than replacing a normal tap?

A shower mixer is normally concealed inside the wall. Replacing the complete mixer therefore involves gaining access to the concealed body, disconnecting the existing plumbing, installing the new mixer, reconnecting the pipework and finishing the access area.

Do you need to cut the wall open to replace a shower mixer?

Usually some form of access to the concealed mixer body is required. Depending on the bathroom layout, this may be through the tiled face of the shower or from the opposite side of the wall.

What happens if you need to access the mixer through the tiles?

Where tiled-face access is required and suitable for the installation, an oversized backing plate can be fitted behind the mixer trim to neatly cover the access opening.

Do I need to have the shower retiled after replacing the mixer?

Not necessarily. Where an oversized backing plate can be used, the access opening can be covered without attempting to replace individual tiles around the mixer.

What if the mixer can be accessed through a plaster wall behind the shower?

Rear access may be used where the layout and wall construction make it practical. Where plastering or painting is required afterwards, that finishing work is additional and can be arranged.

Can a leaking shower mixer be repaired without opening the wall?

Sometimes. If the fault is limited to a cartridge, seal or another serviceable component accessible from the front, repair may be possible without replacing the complete concealed mixer body.

When does the complete shower mixer need replacing?

Complete replacement may be required where the concealed mixer body is leaking or damaged, repair parts are no longer available, faults are recurring or the mixer is being replaced as part of a bathroom upgrade.

Can any new shower mixer fit onto my existing concealed body?

No. Concealed mixer bodies vary between products and ranges. Replacing the complete mixer normally involves removing the existing body and adapting the connected pipework to suit the replacement.

What is the difference between a bath mixer and a shower mixer?

The mixer performs essentially the same function by combining hot and cold water. In a shower installation the mixed water supplies the shower outlet, while in a bath installation it supplies the bath outlet.

Which shower mixer does JR Gas & Water recommend?

The Essentials mixer is our simple and affordable option. For customers wanting a more refined everyday bathroom finish, the Raymor Surrey is our recommended option.

Can I see complete shower mixer replacement pricing online?

Yes. JR Gas & Water displays current supplied-and-installed bath and shower mixer replacement options online so you can compare products, pricing and booking availability before proceeding.

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