Shower Base Sintered Stone Tiling in Warsaw
18.03.2026Shower Base Sintered Stone Tiling in Warsaw
Sintered stone — thin slabs from Laminam, Neolith or Dekton, 3-6 mm thick — looks like natural marble but absorbs no water and resists chemicals. On a shower base it creates a near-seamless monolithic surface: one or two cuts instead of dozens of small tiles. It looks premium, cleans easily and lasts decades. But working with sintered stone on a base is not standard tiling: it requires a bridge saw, diamond routers and precise cutting. We work across Warsaw — from Wilanów to Bemowo. Want a premium shower with no compromises? Call us for a quote.
How much it costs and what affects the price
The cost depends on the type of slab (Laminam 3 mm, Neolith 6 mm, Dekton 8 mm), base area, number of cutouts (drain, edges, niches), cutting complexity and edge treatment. Sintered stone costs more than standard tiles but saves installation time — fewer joints, less grouting. Adhesive, waterproofing and slabs are purchased by the client. Labour and consumables are included in the service price. Current prices are in the table below.
| Service | min | max |
|---|---|---|
| Shower base tiling — sintered stone | 700 zł | 1200 zł |
| Shower base tiling — standard tile | 350 zł | 600 zł |
| Shower base tiling — large format | 500 zł | 900 zł |
| Shower base tiling — mosaic | 400 zł | 700 zł |
| Sintered stone precision cut | 80 zł/mb | 140 zł/mb |
| Waterproofing under tiles | 30 zł/m² | 60 zł/m² |
How sintered stone base tiling works
- Measurement and template. We take precise dimensions, make a cardboard template accounting for the drain, edges and wall junctions. We plan the cutting layout to minimise waste.
- Surface preparation. We check slope to drain (minimum 1-2%), prime the surface. If waterproofing is missing we apply Mapei Mapelastic membrane.
- Slab cutting. We cut on a bridge saw with a diamond blade and water cooling. Drain opening — diamond router. Edges are ground smooth.
- Adhesive application. Mapei Keraflex Maxi S1 or Litokol K80 — flexible adhesive only. Double-buttering on both substrate and slab. Voids under thin slabs mean cracks.
- Joint treatment. If the base is larger than one slab, joints are filled with colour-matched epoxy (Litokol Starlike or Mapei Kerapoxy). The seam is virtually invisible.
- Sealing. Wall junctions — sanitary silicone. Drain junction — silicone plus water test.
- Final check. We flood the base, verify drainage speed and check all joints for leaks.
Common mistakes with sintered stone bases
- Cutting with an angle grinder — 3-6 mm slabs crack and chip on visible edges. Bridge saw with water only.
- Rigid adhesive — sintered stone is thinner than porcelain and reacts more to substrate movement. Flexible S1 is essential.
- Voids under the slab — the stone flexes when stepped on and breaks. Double-buttering is non-negotiable.
- Incorrect cutting plan — sintered stone is expensive; a measurement error means a wasted slab. Templating is mandatory.
- Standard cement grout on joints — with sintered stone only colour-matched epoxy is used. Cement grout looks crude and cracks.
- Unpolished edges — visible cuts must be ground and polished or the finish looks incomplete.
- Laying on an uneven substrate — thin slabs follow every irregularity and can crack.
What to prepare before the technician arrives
- Base with finished screed and slope to drain.
- Waterproofing applied and cured.
- Sintered stone purchased: Laminam, Neolith or Dekton — confirm slab size with the technician beforehand.
- Flexible adhesive: Mapei Keraflex Maxi S1 or Litokol K80.
- Colour-matched epoxy adhesive/grout for joints.
- Sanitary silicone (clear or colour-matched).
- Confirm drain type — length, model, position.
- Ensure water supply nearby (for the bridge saw).
- Clear the bathroom completely — the saw needs space.
- Power supply — bridge saws draw 2 kW or more.
- Provide access details: intercom, lift (slabs are heavy), parking.
A real case from Warsaw
An apartment in Wilanów, designer bathroom — the client chose Neolith Calacatta Royale 6 mm for a walk-in shower base. The base was non-standard: trapezoidal, 120×90 cm, with a Geberit linear drain at the wall. We made a cardboard template, cut the slab on the bridge saw — two main pieces plus a strip for the edge. Drain cutout with a water-cooled diamond router. Laid on Mapei Keraflex Maxi with double-buttering. The joint between the two sections — Litokol Starlike colour-matched, seam virtually invisible. Edge polished to a mirror finish. Wall junction — clear sanitary silicone. Result: the base looks like a solid marble slab. The job took one day. The client said the absence of grout lines was the deciding factor for sintered stone — and he has no regrets.
Frequently asked questions
Why is sintered stone better than regular tiles on a base?
Minimal joints (1-2 instead of dozens), monolithic appearance, zero water absorption, easy cleaning. Looks like a single piece of stone.
What thickness works for a shower base?
3-6 mm is sufficient. Laminam 3 mm is the thinnest. Neolith and Dekton 6-8 mm are stronger. What matters most is the substrate and adhesive quality.
Is sintered stone slippery when wet?
Depends on the finish. Matte and textured surfaces (silk, riverwashed) are safe. We do not install polished glossy slabs on shower bases.
Can it be laid on an existing base?
Yes, if the substrate is flat, solid and properly sloped. Priming is required. Old tiles can stay if they are firmly bonded.
How long does it take?
A standard base — 1 day. Non-standard shapes — 1-2 days. Plus 24 hours for adhesive to cure.
Are joints visible?
With proper cutting and colour-matched epoxy — virtually no. The seam is thinner than 1 mm.
What is included in the price?
Labour (measurement, cutting, installation, polishing), consumables and travel. Slabs, adhesive and silicone are purchased by the client.
Which brands do you recommend?
Laminam (Italy) — thinnest and lightest. Neolith (Spain) — excellent value. Dekton (Cosentino) — maximum durability.
Can you make an edge from sintered stone?
Yes. The edge is cut from the same slab and polished. It looks seamless with the base.
Do you offer a warranty?
Yes, on workmanship. If the slab cracked due to installation error we will redo it at our expense.
Who does the work
Sintered stone installation is carried out by technicians who work with large-format slabs professionally — this requires a bridge saw, diamond routers and precision cutting skills. A standard tiler with an angle grinder will ruin sintered stone. We arrive fully equipped. We cover all of Warsaw. Call or message us — we will calculate the cost and help you choose the right slab.