A concealed shower keeps much of the valve behind the wall; an exposed system leaves the main mixer body visible. The right choice depends on the renovation, existing plumbing and access needs as well as the finished appearance.
Consider the work behind the wall
Concealed installations need a compatible concealed body, suitable wall depth and coordinated pipework. These details should be settled before waterproofing and tiling. An exposed replacement may reduce wall work, but existing connection centres and the water system still need checking.

Plan the outlets as one system
Decide whether you want an overhead shower, hand shower or other outlets, then confirm how the valve controls them. The number of visible controls does not reliably show whether outlets can operate together. Check the selected valve, diverter and supply requirements as a complete configuration.
Think about replacement and maintenance
Ask how serviceable parts are reached after installation and keep the model information. Concealed trim is not universally interchangeable with concealed bodies. For an existing installation, identify the fitted body before ordering replacement controls; matching colour and shape is not enough.
Before you order
- Identify existing connections or available wall depth.
- Confirm the exact valve body and compatible visible trim.
- Plan outlet positions and permitted simultaneous use.
- Agree access, waterproofing and servicing with the installer.
Common questions
Will any concealed trim fit an existing concealed body?
No. Compatibility depends on the specific system and model. Identify the body and confirm supported replacement parts before purchasing.
Is an exposed shower always a straightforward replacement?
Not always. Connection positions, supply conditions and the new model's requirements must match, even when the old mixer is already exposed.