How to Clean and Care for Tadelakt

The short version: wipe it with water and a soft cloth, use a pH-neutral or mild soap when it needs more, squeegee the walls after a shower, and never let anything acidic touch it — no vinegar, no lemon, no limescale remover, no bleach-based descaler. Tadelakt is lime, sealed with soap. Acid dissolves lime. That single sentence is 90% of tadelakt care, and the mistake we are called out to repair is almost always the same one: somebody reached for the limescale spray.

Why acid is the one real enemy

Tadelakt is not a coating sitting on top of a wall — it is a lime plaster burnished until it tightens, then sealed by rubbing soft soap into it. The soap reacts with the lime to form a water-repellent skin that is part of the material itself. That skin is alkaline, and it is what makes tadelakt genuinely water-safe without a plastic sealer.

Acid attacks it on both counts. It eats the lime and it strips the soap, leaving a dull, chalky patch that no amount of scrubbing brings back. The damage is not a stain you can lift; it is a hole in the finish, and it has to be re-burnished and re-soaped by hand. Everything on the “never” list below is on it for that one reason.

What to use, and what to keep away

If you remember nothing else: if a bottle promises to dissolve limescale, it will dissolve your walls too. Lime and limescale are chemically close cousins — the product cannot tell them apart.

The daily routine takes ten seconds

Squeegee the walls after a shower. That is genuinely it.

This matters more in the UAE than in most places, because the water here is hard. Hard water leaves mineral deposits as it dries, and on tadelakt those deposits are a particular trap: they build up as a cloudy film, the film looks like limescale, and the instinctive fix — limescale remover — is the one thing that will wreck the wall. A squeegee removes the water before it can leave anything behind, which means the problem never starts and the cure is never needed.

For the rest, warm water and a soft cloth handle normal use. Where the surface needs more — a greasy mark, soap build-up near a basin — a little mild pH-neutral soap on a cloth, then rinse and buff dry with a soft towel. Buffing is not fussiness; it is what brings the sheen back up.

Feeding it: the soap treatment

Every so often — realistically once or twice a year in a family bathroom, less in a guest cloakroom — tadelakt likes to be fed. A thin wash of traditional black soap (savon noir) diluted in warm water, worked over the surface, left briefly, then rinsed and buffed dry with a soft cloth. It tops up the same soap seal the wall was finished with, deepens the colour slightly, and restores water repellency in the areas that get the most use.

You will see the difference most around the shower and the basin, which is exactly where the wall works hardest. Nothing about it is difficult, and it is the whole maintenance programme — there is no sealer to strip, no coating to reapply.

Marks, patina and what “damage” actually means

Tadelakt develops a patina. Tone deepens slightly around the wet areas, the sheen settles, and the wall stops looking freshly made and starts looking lived in. That is not wear — it is the material behaving as it has in Moroccan hammams for centuries, and it is a large part of why people choose it over tile.

Real damage is different and it is fixable. An acid burn, a chip at a corner, a scratch from something dragged against it: all of these are repaired in place by hand — re-worked, re-burnished, re-soaped. Because the finish is the material and not a film over it, a repair blends in a way a damaged tile or a peeling coating never does. There is no need to strip a wall to fix a patch of it.

When tadelakt is the wrong choice

We would rather say this before the quote than after. Tadelakt asks for a household that will respect the rules — no acids, no scouring, a squeegee within reach. If the bathroom is cleaned by whoever is on shift with whatever is under the sink, those rules will be broken eventually, and the wall will show it.

In that situation, be honest about it and choose differently. A microcement wet-zone system gives you the same seamless, grout-free bathroom with a hard modern sealer over it — far less fussy about what it is cleaned with, and available across floors and walls in the same finish. It is not the same material and it does not have tadelakt’s hand or its glow, but a microcement bathroom that survives its cleaning routine beats a tadelakt bathroom that doesn’t. See our microcement cost guide for where that lands, or the microcement bathroom page for how we build the wet-zone system.

If it has already gone dull

Don’t panic and don’t scrub. A dull patch from hard water often comes back with nothing more than the black soap treatment above and a firm buff with a dry cloth. A dull patch from acid will not — that one needs a hand and a stone, and it is a repair rather than a clean.

If you are not sure which you have, send us a photo on WhatsApp. We have been applying and repairing lime finishes in the UAE for 8+ years, our crews are trained in-house, and we would rather talk you through a ten-dirham fix than sell you a wall you don’t need.