Inside Our Advanced Venetian Plastering Course, Day by Day

Our advanced Venetian plastering course is four days at the bench in Birmingham, £1,200, and it exists for one reason: the finishes clients pay the most for are the ones a beginner course cannot reach. Artificial rock, vein work, high-gloss polish, textured marmorino, blended walls. Each sits on top of the basics and each has a way of going wrong that you only learn by doing it under someone who has done it on site. This is what the four days look like.

Who the advanced Venetian plastering course is for

Two kinds of student. The first has done our 3-day beginner course, gone away, put a few walls up, and come back wanting the next tier. The second already works with lime finishes, sometimes for years, and wants to fill gaps or learn the finishes they have been turning down. Both do well. What we ask is that you can already lay a flat, even second coat of marmorino and burnish a polished plaster without ridges or trowel marks, because everything below assumes it. If you are not there yet, inside our beginner course shows what that first step covers.

If you are still comparing Venetian plaster courses and polished plaster courses more generally, choosing a Venetian plastering course is the place to start; this piece assumes you have settled on the advanced tier.

The order below is how we usually run it. It shifts a little with each group depending on drying times and what people most want to get to.

Day one: theory that changes how you work, and texture

The beginner course covers enough lime theory to keep a wall safe. Day one here goes deeper: how lime carbonates from the surface inward and why that limits how fast you can build coats, how marble grade changes the way a plaster moves under the trowel, why the same tub behaves differently on a cold January site and a warm July one, and the practical difference between lime and acrylic systems (our short version is in lime versus acrylic Venetian plaster). This is the part that lets you diagnose a wall rather than guess at it.

Then tinting. On the beginner course your plaster arrives in colour. Here you learn how pigment load changes working time and final tone, how to tint a tub to match a sample board, and how to keep colour consistent across several tubs on a large wall. We tint by machine in the shop for customers; on the course you learn to do it by hand so you understand what the machine is doing.

The afternoon is textured marmorino. You take a coarser lime like Travertino or Intonachino and learn to build deliberate texture: dragged, pitted, travertine-style banding, and the flattened-texture look where a second pass compresses the peaks and leaves the valleys open. Each board dries overnight for day two.

Day two: artificial rock and stencil work

Artificial rock is one of our five signature finishes and the one people most often ask us to install rather than attempt. It is built up in thickness, carved and cut while green, then coloured in layers so it reads as stone. Day two starts with a demonstration on a full board, then you build your own from the base coat up: how thick you can go without slumping, when to carve, how to cut a convincing joint, how to get depth into the colour with washes rather than paint.

Stencil work fills the afternoon. It is a smaller skill but a commercially useful one, because designers ask for it in restaurants and hotel corridors. You learn to apply a raised pattern in plaster through a stencil, keep the edges crisp, and finish it so the relief catches light without looking stuck on.

Day three: acrylic polished plaster, vein work and gloss

Day three is the polish day. We start with acrylic polished plaster, because some commercial jobs specify it for speed or for a particular substrate, and you should know how it behaves compared to lime: faster, more forgiving in the second coat, less forgiving in the burnish, and a different final look. You do a full board so you can hold it next to your lime board and see the difference for yourself.

Then vein work. This is the technique that turns a polished plaster from a coloured wall into something that reads as marble, and it is what people usually mean by Venetian marble plastering: dragging a fine vein of a second colour through the top coat, feathering it, and burnishing it in so it sits under the shine rather than on top. It is slow to learn and it is the one most students say was worth the fee on its own.

The afternoon covers sanding techniques and polishing to a high gloss. Sanding between coats and after the final coat, which grits, wet or dry, and how far you can go before you cut through. Then the burnish sequence that takes a Veneziano polished plaster from satin to mirror, first with the trowel and then with the finishing passes that give you the depth clients photograph.

Day four: waxes, sealers and blending

Protection first. You work through the options on your own boards: natural beeswax for the traditional soft sheen, paste waxes for a harder finish, and sealer for wet rooms, restaurants and anywhere that gets touched. You learn which finish wants which, how much to apply, when, and what over-waxing looks like so you never do it on a wall.

Then blending, which is the skill that separates a good decorative plasterer from a very good one. Fading one colour into another across a wall, running a polished plaster into a marmorino without a visible line, and grading a texture out to flat. We finish with a review of every board you have made, honest notes on each, and a talk about where each finish sits in a quote. Our piece on pricing Venetian plaster jobs is the written version of that last conversation.

What you take home

• Every board you made: textured marmorino, artificial rock, stencil, acrylic polish, veined and high-gloss polished plaster, waxed and sealed samples, and at least one blended wall.
• Written coat systems for each finish, with products, timings and protection.
• A materials account, so the first paid wall uses the same tubs you trained on from the shop.
• Four days of Venetian plaster training with a master who still installs these finishes in hotels, restaurants, spas and private homes, and who will pick up the phone afterwards.

Questions we get asked

How long does an advanced Venetian plastering course take?

Four days, at the bench from morning to late afternoon, with boards drying overnight between sessions. Some students travelling a long way pair it with the 3-day beginner course in a single week; we would rather you left a gap and put a wall or two up in between.

Do I need the beginner course first?

Not if you already work with lime plasters and can lay and burnish a clean polished plaster without ridges or trowel marks. If you are not sure, send us photos of your work and we will tell you honestly which course to book.

What does the advanced course cover that the beginner does not?

Deeper lime theory, hand tinting, textured marmorino, artificial rock, stencil work, acrylic polished plaster, vein work, sanding and polishing to a high gloss, the full range of waxes and sealers, and blending one finish into another. The beginner course gets you to a clean Marmorino, Polished Plaster and Metallic; this one adds the finishes clients pay a premium for.

How much does the advanced Venetian plastering course cost?

£1,200 for the four days. Every technique on it can be learned alone, eventually; the course compresses that and stops you learning the wrong habit on a client’s wall. Against what artificial rock or a veined polished plaster bills for, the fee is often recovered on the first job that uses one of them.

Where to go next: book a place on the advanced 4-day course at £1,200, or compare all three courses on the training page.