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Guide

Venetian plaster walls.

What they are, the six finishes they can be made in, and how to pick one.

01 The short answer

What a Venetian plaster wall actually is

A Venetian plaster wall is built from thin coats of lime, each one trowelled on and compressed into the one below, then burnished. The depth you can see is not printed or painted on — it is the layers themselves, showing through each other.

That is the whole difference from paint. Paint sits on a wall. This becomes the wall. Run your hand across a finished one and it is cool and hard, closer to polished stone than to a decorated surface, because chemically that is roughly what it has turned into.

Lime carbonates as it cures. It goes on as a soft putty and slowly reverts to limestone over months and years, which is why a genuine lime wall gets harder with age instead of tired. Synthetic look-alikes do not do this, and the difference shows within five years.

One thing to get straight

“Venetian plaster” is a family, not a product. Marmorino, Grassello, Tadelakt, limewash and microcement are all different materials with different looks and different prices. Anyone quoting you for “Venetian plaster” without naming the system has not told you what you are buying.

02 The finishes

Six systems, six different walls

We work in all six. They are not interchangeable, and choosing the wrong one for a room is the most common and most expensive mistake people make.

There are two more we use less often — marble effect and concrete effect — both variations on the systems above rather than materials of their own.

03 Where it goes

Rooms it suits, and rooms it does not

A single wall is the usual starting point — behind a bed, a fireplace, a sofa, or the wall you see first walking into a reception. One wall in plaster and the rest in paint is a deliberate look, not a compromise, and it is how most people begin.

A whole room is a different decision. Done in a muted tone it wraps a study, a dining room or a cloakroom in a way a feature wall cannot, and small windowless rooms in particular stop feeling like boxes. Done in a strong colour across four walls it can become a lot to live with, so we will normally push you towards a sample in the actual room before agreeing to it.

Where it genuinely outperforms everything else is on curves. Alcoves, niches, arches, columns, a curved return — plaster is applied wet and follows the shape. There are no joints, no cut lines and no trim, which is exactly where tiles, panels and wallpaper all start to look like a compromise.

Where to be careful

Behind a hob, in a shower, or on anything that moves. None of those rule it out, but each one changes the system: a splashback needs a sealer, a shower needs Tadelakt or microcement over proper tanking, and a wall that flexes needs mesh through the base coat before anything decorative goes near it.

More on bathrooms and wet rooms, kitchens and ceilings.

04 Colours

What colours Venetian plaster comes in

Effectively any colour, because the plaster is pigmented rather than bought ready-made. These ten are our standard range, and any of them can be adjusted lighter or darker.

Calce plaster colour sample
CalceChalk white
Avorio plaster colour sample
AvorioWarm ivory
Sabbia plaster colour sample
SabbiaSand
Tortora plaster colour sample
TortoraGrey taupe
Cenere plaster colour sample
CenereAsh
Fumo plaster colour sample
FumoSmoke
Grafite plaster colour sample
GrafiteGraphite
Nero plaster colour sample
NeroBlack
Bronzo plaster colour sample
BronzoBronze
Oro plaster colour sample
OroGold

Two things worth knowing. Deep colours are harder, not easier — black and charcoal show every trowel mark and every repair, so they cost more to do properly. And the colour on a 200mm sample is never quite the colour on a 4-metre wall, which is why nothing is agreed here until you have held a full sample panel in the room it is going in.

05 Choosing

How to choose a finish without regretting it

  1. Decide the feel first, not the colourMatte or polished, calm or dramatic, one wall or four. Everything else follows from that, and getting it the wrong way round is how people end up with a finish that fights the room.
  2. Pick the system that suits the roomWet room, splashback, hallway that gets knocked, bedroom that gets nothing. The room decides which of the six is sensible long before taste comes into it.
  3. Check the wall underneathSound, dry, not moving. Polished finishes are unforgiving of what is beneath them, and no amount of skill on the top coat hides a substrate problem for long.
  4. See a full sample panel in the roomNot a photograph, not a swatch on a screen, not a sample held in a showroom. The actual finish, in your colour, in your room, before anything is agreed.
  5. Allow the timeFive to seven coats over several days, with waiting in between. Anyone promising a finished room tomorrow is leaving layers out, and you will see where within a year.
  6. Get the price fixed in writingItemised into preparation, materials, labour and protection. An estimate can move. A fixed written price cannot.
06 Questions

What people ask before they commit

What is the difference between Venetian plaster and polished plaster?
Venetian plaster is the family; polished plaster is one member of it. In the trade, polished plaster usually means Grassello — aged lime putty burnished to a high shine. Marmorino, Tadelakt and limewash are all Venetian plasters too, and none of them shine. If someone uses the two phrases interchangeably, ask which system they mean.
Can Venetian plaster go on a normal painted wall?
Yes, if the paint is sound and stuck down. The wall is cleaned, filled where it needs it, and primed with a gritty base coat that gives the plaster something to key into. What will not work is flaking paint, damp, or a wall that moves. Those get fixed first or the finish fails on top of them.
How long do Venetian plaster walls last?
Decades. Lime carbonates as it ages — it goes on soft and slowly turns back into stone — so a properly applied wall gets harder with time rather than tired. The wearing part is the wax or sealer on top, and that can be refreshed in an afternoon without touching the plaster.
Is Venetian plaster waterproof?
Water-resistant rather than waterproof, and it depends on the system. Tadelakt and microcement are used in showers routinely. Plain Marmorino on a splashback is fine once sealed. None of them replace tanking behind a wet wall — that is a separate job that goes on first.
Can you put Venetian plaster in a bedroom or living room?
That is where most of it goes. A bedroom usually wants a matte or lightly burnished finish in a muted colour; a living room can take more movement and a deeper tone behind a fireplace or a sofa. Neither needs sealing the way a kitchen or bathroom does.
How do you clean a Venetian plaster wall?
A dry cloth or a barely damp one. Nothing abrasive, no bleach, no kitchen sprays — they attack the wax, and once the wax has gone the surface starts marking. In a kitchen or a bathroom, ask for a sealer rather than a wax and it will take a wipe.
Can you paint over Venetian plaster later?
You can, with the right primer, but it is a one-way door — you will not get the finish back afterwards without replastering. Worth knowing before you commit a whole room to a colour you are not sure about.
Can you do Venetian plaster yourself?
The material is easy to understand and hard to lay. It sets on a clock, it shows every hesitation, and there is no sanding a bad wall out at the end. If you want to learn it properly rather than gamble a room on a YouTube video, we run training courses.
07 Start

Send us the wall

A photograph and a rough size is enough to begin. You will have next steps within one working day, and a sample panel made in your finish before anything is agreed.

Costs are the question everyone asks second: what a microcement bathroom costs, per square metre. Materials come from our own supply side, and we work across the whole of the UK from a studio in Birmingham.

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