Stone stair treads and risers in quartz, granite, Dekton or other sintered stone, from £110/m² (stone only), templated tread by tread on the built staircase, profiled at the nosing, finished so they are safe underfoot and fitted across London over a sound concrete or steel structure.
On a drawing, every tread in a flight is the same size. On a real staircase, particularly in an older house, they are not. The walls lean, the strings were set by hand and the bottom step is often a different depth from the rest. So each tread is templated on its own and cut to its own shape, not cut as a batch from one dimension.
The second thing that decides a stone staircase is what it sits on. Stone is stiff and does not forgive movement. Over concrete, or a steel frame designed for it, it lasts as long as the building. Over a timber flight that flexes when someone runs down it, the stone cracks along the line where the timber bends, and no adhesive stops that.
The third is grip. A polished stone tread looks superb and is slippery in socks, and lethal when wet. On a stair, the finish on the walking surface is a safety decision first and a look second, and it is settled before the slab is cut.
Fitted 5–10 working days from template. The payment stages are set out on your quote.
Which stair
The parts of a stone staircase, and what each one asks of the stone.
The pieces you stand on. Each one is cut to its own template with the nosing profiled along the front edge and, where it is visible, along the open end. The tread carries the load and the wear, so it is where the thickness and the finish matter.
The upright faces between treads. They carry no load, so they can be thinner, and they are where the vein can run unbroken up the flight if they are cut in order from one slab run.
The tapered treads where a stair turns. No two are the same shape, which is exactly why they are cut from a template of the stair itself rather than from a plan. On a winder the narrow end is the part people tread on least and notice most.
A landing is a floor, and it is often larger than any single slab. Where it needs a join, the join is placed where it lines up with the treads below, not wherever the slab happened to run out.
Outside, quartz is out: it is made with resin and is not one for open sky. Granite is the traditional external step and sintered stone copes well. Tell us at quotation that the steps are outdoors and we will tell you plainly whether it is a job we can take on.
A step down into a kitchen extension or up to a door threshold is the same work at a smaller scale. A step at an entrance is covered on stone doorsteps.
Choosing the stone
Supply rates are read from our catalogue and cover the stone only. Templating, the nosing, the walking finish and fitting are quoted as their own lines.
| Material | Colours | Supply from | On a stair |
|---|---|---|---|
| Quartz | 69 | £130/m² | Indoor stairs. No sealing, the widest colour range and a consistent pattern from tread to tread. Not for outdoor steps or a flight in strong direct sun through a glazed wall. |
| Granite | 45 | £121/m² | The traditional stair and step stone, indoors or out. Takes a flamed or leathered finish well for grip. Porous, so it is sealed before use and resealed periodically. |
| Dekton | 63 | £110/m² | Indoor or outdoor stairs where staining, sun and frost all matter. No sealing. Brittle at an unsupported edge, so the bed beneath the nosing has to be full. |
| Sintered stone | 8 | £280/m² | Our own sintered stone range. No sealing and stable in sun; like any sintered slab, it wants a full, flat bed under every tread. |
Free samples are posted from the Worktop Worx quartz collection, up to four at a time. Other quartz, granite and sintered stone are judged from the slab.
What is involved
Stone goes on last. Everything it depends on has to be finished and fixed before it is templated.
Concrete, steel or timber, and whether it moves. If the flight is timber, whoever built or will build it (or a structural engineer) confirms it is stiff enough to carry stone. We will say what the stone needs; we do not decide whether a structure can provide it.
Polished on the risers if you like, but the treads want a honed, textured or grooved surface. This is decided with the material, because not every finish is available on every slab.
On the finished structure, tread by tread, including the angle where each one meets the wall. The rise and going are set by the structure and the regulations, not by the stone, so the template records them as they are built.
Treads and risers are cut in sequence from the same slab run so the colour and the vein follow the flight. Each nosing is profiled and polished, and any grooves or anti-slip inserts are cut in the workshop rather than on the stairs.
Each tread is bedded flat and full, with no hollow under the nosing, and set level to itself. A hollow bed is how a stone tread cracks under a heel months later.
The parts that decide it
A tread is a small piece of stone with all of a person’s weight landing on its front edge, many times a day.
Stone is heavy, but weight is rarely what breaks it. Movement is. A flight that flexes even slightly under a footstep will crack a stone tread along the line it bends. Concrete and properly designed steel do not flex; many timber flights do, and that is a question for the joiner or an engineer before it is one for us.
Said plainly, because it is the thing nobody wants to hear about a beautiful slab. A high-polish tread is slippery in socks and dangerous when wet. A honed or leathered finish, a flamed finish on granite, or grooves cut near the nosing all keep the look while giving the foot something to hold. Not every stone comes in every finish, so we say which ones the stone you choose is available in before it is ordered.
Every heel, every case carried down and every hoover lands on the front edge. A small radius survives that far better than a sharp arris, which chips at the first knock and then shows on every step you look up at.
In a new build they are close. In a Victorian terrace they can differ by more than you would believe across one flight. Templating each one is what makes the gap at the wall a joint rather than a crack filled with sealant.
Cut in order from one slab run, the pattern follows the flight. Cut at random, a veined stone looks like a dozen different stones. On a plain or speckled stone it matters less, which is a fair reason to choose one.
A tread is manageable. A landing piece may not be: it has to be carried up the stair it is going on, round whatever turn the stair makes. That is measured at template, not discovered on the day.
Stone can go on a timber stair, but only when the flight is stiff enough not to move under it, and that is not something we can judge by looking. If a joiner or a structural engineer confirms the structure and how it is to be stiffened, we will template and clad it. If nobody can confirm it, we will say so rather than fit stone that will crack on the first tread somebody jumps down onto.
Before we template
The stair itself belongs to the builder. Stone is the last layer on it, and it cannot correct what is underneath.
Questions
If yours is not here, ring and ask. You will get a straight answer rather than a call-back from a salesperson.
Sometimes. Stone needs a structure that does not flex, and many timber flights do. If a joiner or a structural engineer confirms the stair is stiff enough, or how it will be stiffened, we can template and clad it. If nobody can confirm that, we would rather say no than fit treads that crack.
Polished ones are, especially in socks or when wet. That is why the walking surface is chosen with the stone: honed, leathered or flamed finishes, or grooves cut near the nosing, give grip without giving up the look. The risers can stay polished.
Indoors, quartz gives the most consistent colour from tread to tread and needs no sealing. Granite is the traditional stair stone, indoors or out, and takes a textured finish well. Sintered stone suits outdoor steps and stairs in strong sun. Each of them needs a full, flat bed under every tread.
The stone is priced by the square metre, from £110 to £550 across the surfaces we hold, supply only. A staircase is a lot of individual pieces, so templating each tread, profiling the nosings, the walking finish and fitting are itemised on the quote rather than folded into a single rate.
Not in quartz, which is made with resin and is not one for outside. Granite and sintered stone are the materials to look at for garden and patio steps. Say so at quotation, because it changes the material before anything else, and we will tell you plainly whether it is a job we can take on. The base the steps sit on is groundwork, which is not ours.
No. We template, fabricate and fit the stone. The structure, its rise and going and any balustrade are the builder’s or the joiner’s, and they need to be finished before we template, because the stone is cut to what is actually there.
Where we work
We template and fit across Greater London and out into Essex, Hertfordshire, Surrey, Buckinghamshire and Berkshire. The stone is cut in our workshop and fitted by our own installers, wherever the job is.
Next
Every job runs through more than one of these. Follow the thread rather than guessing which order things go in.
Front steps and thresholds, templated off what is already there.
Table tops, stairs, shelves, boards and more, cut from the same stone.
Read the detailCut, mitred, polished and dry-assembled before anything reaches your kitchen.
Read the detailWorth reading
The questions that come up most, answered in full rather than in a sentence.
What the two standard thicknesses actually change, what they do not (strength, mostly), and why the honest deciding factors are weight, the carry into your kitchen and how you want the edge to read.
Read the guideHow to tell whether your granite actually needs resealing, why the annual rule everyone repeats is wrong, and how to apply a sealer without leaving a haze you then have to fix.
Read the guideSintered stone is a worktop slab made by pressing mineral powders under very high pressure and firing them until they fuse into one dense body, with no resin binding it. That is why nothing in it can scorch, it never needs sealing and it can be made thin.
Read the guideEvery one of these is on our Google profile under the reviewer’s own name. Nothing here is written by us, and the link goes straight to the source.
Read all 26 See them on Google
Count as read from Google on 4 September 2026
“I am really happy with the work! He fitted my kitchen granite worktop really nicely and got the job done on time, just as promised. He was friendly, professional, and made sure everything was done the way I wanted. Would definitely recommend Karam to anyone looking for a great job!”
“We recently had our kitchen worktops supplied and fitted by Worktop WorX using Laurent Gold sintered stone, and we couldn’t be happier with the result. The finish, quality, and attention to detail were outstanding from start to finish. Karem was incredibly helpful throughout the whole process professional, knowledgeable, and always available to answer…”
“We have a new kitchen. Our builder recommended Worktop Worx for our worktop. Now we have an amazing worktop very good price too. Really recommend. They were really good to us. 10/10”
“I used Karem’s services 5 years ago for purchasing and fitting the quartz worktop in my then brand new kitchen. The price was reasonable and the service reliable and spot on, no delays in fitting, misunderstanding or excuses. I recommended him to a friend, who also used his services and they were happy too! If I need to order new kitchen work top again,…”
“Absolutely delighted with our new worktop from Worktop WorX. The Capri White finish looks incredible, clean, modern, and really brightens up the whole kitchen while pairing beautifully with the darker cabinetry. The quality of the worktop is outstanding, with a flawless finish and seamless installation that really shows the attention to detail. It’s not…”
“Kareem did the countertops dur8ng my kitchen remodel, and I was so impressed that I had him back to do the laundry room as well, which tells you everything you need to know. He is an absolute gem. Shows up when he says he will (which, let’s be honest, is rarer than it should be), does beautifully work, and clearly takes real pride in what he does. The…”
8 of our 26 Google reviews name Karem, who owns and runs Worktop Worx.
Next step
Photographs of the flight, what it is built from, and a rough count of treads and the width is enough to start. The quote costs nothing.