Custom Tile Showers Built Dry From the Inside
A good tile shower is built from the framing outward. The floor is sloped to the drain, a waterproof layer covers the base and the walls, the corners and fasteners are sealed, and only then does tile go on. Tile and grout are not waterproof, so what sits behind them has to keep the framing dry for decades.
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Once the structure is right, you choose the details. A niche for bottles, a bench, a linear drain along one wall, a glass panel instead of a door, a rain head and a handheld. Large-format porcelain means fewer grout lines but needs flat walls, while mosaics follow slopes and curves more easily and suit the shower floor.
Before you compare tile prices, compare the preparation. Two quotes for the same tile can differ by the cost of the membrane, the base build and the testing that sits underneath.
What the work includes
- Framing changes for benches, niches and curb or curbless floors
- Sloped mortar bed or foam base set to drain
- Waterproofing membrane or board system with sealed seams and corners
- Drain assembly: point drain or linear drain
- Tile for walls, ceiling if wanted and floor, set with the right mortar
- Grout, silicone at changes of plane and sealing where needed
- Valve, shower head, handheld and trim
- Glass enclosure or a curtain track
Reasons to rebuild or replace a tile shower
Grout stays dark or powdery after cleaning
Loose tiles, cracks at the floor corners or a hollow sound when tapped
Water stains on the ceiling below or damp drywall outside the shower
A musty smell that returns even though the shower is cleaned
Water pools in the corners because the floor was never sloped properly
The shower is too small or the layout wastes space
How the work goes, step by step
Measure and plan
The specialist checks framing, plumbing and the position of the drain, and discusses niche, bench and glass choices.
Choose tile and drain
Tile, grout colour, drain style and fixtures are chosen with the price impact of each shown.
Build the base and walls
The floor is sloped, the membrane goes on and the seams are sealed.
Test and tile
The waterproofing is allowed to cure and checked, often with a water test, before tile is set.
Grout, seal and glass
Grout is applied, joints sealed, then fixtures and glass installed.
What changes the price
- Size and shape
- Larger floors and bench or niche builds mean more material and setting time.
- Tile type and pattern
- Natural stone, mosaics and patterned layouts take longer to set than a plain large tile.
- Drain choice
- A linear drain needs a single-plane slope and a more careful base than a center drain.
- Waterproofing system
- Sheet membranes, liquid-applied coatings and foam-backed boards differ in material and labour.
- Glass
- Frameless, floor-to-ceiling or custom-cut glass is the biggest variable in the enclosure.
- Repairs behind the old shower
- Damaged framing and subfloor are fixed before the new base is built.
What a good quote spells out
- The waterproofing system named, including how corners, niche and curb are treated
- Whether the base is tested with water before tile goes on, and for how long
- Tile size, material and the setting material to be used
- Drain type and the minimum slope, stated for the floor
- Glass thickness, hardware finish and who measures after the tile is set
Custom Tile Showers: questions people ask
How is a tile shower waterproofed?
A continuous waterproof layer covers the floor and walls, either a sheet membrane, a liquid coating or a foam-backed board, with the seams and drain flange sealed. Tile and grout then act as the finish surface.
Why does grout turn black?
Usually moisture and soap film in a shower with weak ventilation. Sealed grout and a working exhaust fan help, and dark staining that returns often points to water behind the tile.
Is large-format tile better?
Fewer grout lines make cleaning easier, but the wall has to be flat and the tile handled carefully. Smaller tile suits sloped floors.
Can new tile go over an existing shower?
Rarely, and it is not advisable when the wall or base is failing. A proper rebuild removes the old surface so the framing and waterproofing can be checked.
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