Pool tiling · · Shane, Deluxe Tiling
Indoor pool tiling: waterproofing, mosaic finishes and tile prep
What goes into a tiled indoor pool that lasts: preparing the shell, waterproofing for permanent water, choosing and setting mosaic, and finishing the pool hall.
A tiled indoor pool is one of the most demanding jobs in tiling. The tiles sit under water all year, face pool chemicals and temperature changes, and every joint is on show through clear water. Getting it right comes down to three things: a properly prepared shell, a waterproofing system made for permanent immersion, and careful mosaic work. This guide explains each stage, based on how Deluxe Tiling approaches pool projects across Berkshire and Surrey.
Start with the pool shell
Tiles are only as good as what they are stuck to. The concrete or blockwork shell has to be structurally sound, fully cured and accurate in shape before tiling starts. We check the walls and floor for level, flatness and any loose or weak surface, and agree any render or levelling coats with the pool builder. Curves, steps, benches and light housings are all checked now, because mosaic will follow every imperfection underneath it.
Waterproofing for permanent water
A pool shell is not assumed to be watertight just because it is concrete. A tanking or waterproofing system rated for submerged use is applied across the shell, with reinforcing tapes and sealed details at corners, steps, inlets, outlets and lights — the places leaks usually start. The adhesive and grout must then be compatible with that system and suitable for constant immersion. We agree the exact system with you and your pool builder, and follow the manufacturer's guidance, including any curing time before the pool is filled. This is the general methodology: as a specialist, Shane may use alternative methods or systems where they suit the shell, the water or the finish better, to ensure a perfect result.
Choosing a mosaic finish
Glass mosaic is the classic indoor pool finish: it holds its colour, reflects light through the water and wraps around curves and steps. Ceramic and porcelain mosaics are also used, especially on steps and edges where grip matters. Colour changes how the water looks — the deep blue mosaic in our photos gives a rich, clear blue — so it is worth seeing samples under the pool's own lighting before deciding. Deluxe Tiling can handle the tile ordering for you so quantities, trims and adhesives arrive together.
Setting out mosaic properly
Mosaic is unforgiving. Sheets have to stay square across long walls, line through from wall to floor, and turn steps and benches without stepped joints or visible sheet edges. We set out from the pool's main lines before fixing, use fully bedded adhesive with no voids behind the sheets, and keep joints even so the finished pool reads as one surface. Steps and edges get contrasting or anti-slip detailing where needed for safety.
Grouting and filling
Pool grouts are typically epoxy or another grout rated for submerged use and pool chemicals, which resists staining and water better than standard cement grout. Once grouted, the pool is left for the full curing time the system manufacturer specifies before it is filled. Rushing the fill is one of the most common causes of early failures. Again this is the general approach: as a specialist, Shane may specify alternative grouts or methods where they give a cleaner, longer-lasting finish.
Tiling the pool hall and surround
Around the pool, the floor needs a slip-resistant finish laid to falls so water drains away from the pool edge and into channels. Walls in the pool hall face constant humidity, so the same care with adhesives, grouts and movement joints applies. Large-format porcelain is popular for surrounds because it gives a calm, clean floor with fewer joints.
Case study: blue mosaic indoor pool, Berkshire
The pool pictured in this article was tiled by Deluxe Tiling from the bare shell through to the finished pool hall. The shell, steps and built-in bench were finished in deep blue glass mosaic, set out so the sheets run cleanly around the curves and down the steps. The pool hall was then finished with a pale porcelain surround and walls, giving a bright, clean contrast with the water. You can see more photos on our pool tiling page.
Why choose Deluxe Tiling for your pool
Deluxe Tiling is one of Berkshire's premier tiling services, and pool work is where Shane's craftsmanship shows most. Shane plans every pool personally, works alongside your pool builder on the waterproofing and timing, and takes the time mosaic needs. We work across Ascot, Sunningdale, Windsor, Virginia Water and north Surrey.
Planning an indoor pool?
Pool tiling is priced by consultation, because every shell, system and finish is different. Use the pool brief on our pool tiling page or send photos through the quote form, and Shane will arrange a call or site visit.