Concealed Mixer

A concealed mixer hides its valve and pipework inside the wall, so only the control trim and spout are visible. The result is a clean, minimalist look that is also easier to keep clean — no body to wipe around. At Big Bath our concealed mixers suit showers and basins, in coordinated finishes, across 10 showrooms nationwide.

Why Choose a Concealed Mixer?

A Cleaner, Minimalist Look

With the valve behind the wall, only the handle and spout show — the tiling stays uninterrupted and the bathroom looks larger and tidier.

Easier to Clean

No mixer body sitting on the wall means fewer joints and edges to wipe around — a real plus in a busy bathroom.

Flexible Layout

Concealed mixers let you place controls and outlets exactly where you want them, independent of where the pipework runs.

What a Concealed Mixer Needs

Because the valve sits inside the wall, a concealed mixer needs a wall cavity to house the mixer body (the 'rough-in'), an access panel for future service, and the wall to be built or chased and tiled after the rough-in is fitted. It is best planned during a renovation rather than retrofitted.

How to Choose the Right Concealed Mixer (Quick Checklist)

1. Pick the function. One-way for a single outlet (shower or basin), two-way or with a diverter to switch between an overhead shower and a hand shower.
2. Consider thermostatic. A thermostatic mixer holds a set temperature even if someone runs water elsewhere — safer for families with children or elderly.
3. Plan the wall cavity. Confirm the rough-in fits your wall depth, and leave an access panel for servicing.
4. Coordinate the trim. Match the visible trim and spout finish to your basin mixer and accessories.
5. Use a good installer. A concealed mixer is only as good as its rough-in — our team fits them to standard.

Concealed Mixer Features to Look For

• Thermostatic option — safe, stable shower temperature.
• Diverter — switch overhead rain to hand shower.
• Ceramic-disc cartridge — drip-free, long life.
• Matching trim finish — chrome, matt black or gold.
• Service access — access panel for the rough-in.

Related Categories

• Bathroom Taps & Fittings — exposed mixers too.
• Basin Mixers — deck and wall basin taps.
• Rain Showers — overhead shower heads.
• Water Heaters — hot water supply.
• Bathroom Accessories — matching accessories.

Frequently Asked Questions

What is a concealed mixer?

A mixer tap whose valve and pipework are hidden inside the wall, with only the control handle and spout (the trim) visible on the tiled surface. It gives a bathroom a clean, built-in look.

Can I fit a concealed mixer in an existing bathroom?

It is harder. Fitting one means chasing the wall to embed the mixer body, then re-tiling — so concealed mixers are best planned during a renovation. For a simple retrofit, an exposed wall mixer is easier.

What's the difference between one-way and two-way (diverter) mixers?

A one-way concealed mixer feeds a single outlet (one shower or one basin spout). A two-way or diverter mixer feeds two — for example switching between an overhead rain shower and a hand shower from one control.

Should I choose a thermostatic concealed mixer?

A thermostatic mixer keeps the water at a set temperature even if someone opens a tap elsewhere in the house, so the shower does not suddenly run cold or scalding. It is safer for households with children or elderly users — worth choosing if budget allows.

How is a concealed mixer serviced if it is inside the wall?

The wearing parts (cartridge) sit behind the trim plate and are reached from the front, or via a small access panel left in the wall for the rough-in. You do not normally have to break the tiles to service it.

Do concealed mixers come in different finishes?

Yes — the visible trim comes in chrome, matt black and brushed gold. Match it to your basin mixer and accessories so the bathroom reads as one coordinated set.

Do you deliver and install concealed mixers?

Yes. Big Bath has 10 showrooms nationwide and in-house installers across Peninsular Malaysia, with ready stock in Kota Kinabalu (Sabah) and Kuching (Sarawak). WhatsApp your nearest branch.