Concealed vs exposed shower valves — which to choose

The biggest decision when you're specifying a shower is whether the valve sits visibly on the wall (exposed) or is recessed behind the wall with only a plate showing (concealed). Both work. The choice comes down to installation cost, plumbing access, and how minimal you want the shower to look.

Exposed thermostatic shower valves

An exposed shower is the more common UK retrofit choice. The thermostatic mixing valve sits on the wall surface, with the supply pipes running behind the wall to the valve body, and the shower hose, rail and head all mounted onto the front of the valve.

Pros:

Easier to install. Plumbing pipework only needs to reach the wall surface, not be routed through the wall cavity. Suits retrofit installations where you can't easily open the wall.
Easier to service. If the cartridge fails, swap the valve body — no tile or plaster work needed.
Lower cost overall. Less labour time during installation.

Cons:

Visible bar valve takes up wall space; some buyers find it cluttered.
The exposed pipework between valve and head is part of the look — needs to be specified deliberately.

Look at the exposed thermostatic shower sets in our range — typical configuration is a horizontal bar valve, rigid riser pipe to a 200 mm rainfall head, and an integrated diverter to a flexible hand shower on a sliding rail.

Concealed thermostatic shower valves

A concealed shower valve has the thermostatic body recessed into the wall cavity, with only a flat plate (round or square) and the controls visible on the surface. The pipework, valve and any diverter mechanism all sit behind the wall.

Pros:

Minimal visual footprint. Just a flat plate + handles. Suits modern, minimal bathroom schemes.
More wall space for tiling or accessories.
Easier to clean — less exposed hardware to wipe round.

Cons:

Higher install cost. Wall needs to be opened up during build; plumbing pipework runs in the cavity; the valve body is fixed before tiling.
Hard to service. Cartridge replacement may need an access panel or wall removal.
Requires careful planning. Once tiled in, the valve's hard to move.

If you're tiling a new bathroom from scratch, concealed valves are usually worth the extra cost — the cleaner look pays back over years. If you're retrofitting or replacing a knackered electric shower, exposed is the pragmatic choice.

1-way, 2-way, 3-way — what's the difference?

Concealed valves are specified by the number of outlets they can feed:

1-way — one outlet only. Feeds either a fixed rainfall head OR a hand shower. Cheapest.
2-way — two outlets, with a diverter handle. Feeds a fixed head AND a hand shower; you toggle between them.
3-way — three outlets. Usually a rainfall head + a hand shower + a bath spout, or rainfall head + hand shower + body jets.

Most UK bathrooms specify a 2-way. 3-way only makes sense if you're also adding body jets or a bath spout on the same wall.

Thermostatic vs manual mixers

A thermostatic valve maintains the temperature you set even if cold water draws elsewhere in the house (someone flushing a toilet, the washing machine kicking in). Important if you have children, elderly relatives, or anyone vulnerable to scalding.

A manual mixer has no thermostat — turn the cold tap on while you're showering and you'll know about it. Cheaper, simpler, but less safe.

All our shower valves are thermostatic. UK building regulations effectively require thermostatic control for new bathroom installations.

Minimum water pressure

Concealed thermostatic valves typically require 0.5 bar minimum dynamic pressure. If you're on a gravity-fed system with a low-tank installation, you may not hit this — check your pressure first. Our water pressure guide walks through the test.