A level-access wet room looks simple once finished: an open floor, a drain, a screen, no step. Getting there is the least forgiving job in a bathroom, because everything depends on work that disappears under the tiles.
This covers what actually has to happen beneath the surface, the decisions that are difficult to reverse, and the practical points that make a wet room comfortable to use rather than merely step-free. Truscon carries out bathroom installation work in Cardiff, including wet rooms, and these are the questions worth settling before anything is lifted.
The floor decides whether it is straightforward
A wet room needs the floor to fall towards the drain across the whole showering area. On a timber floor that normally means a former set into the joists, which requires cutting and supporting them properly. On a concrete floor it can mean forming the fall in a screed instead. Neither is exotic, but both need to be planned rather than improvised.
The other floor question is depth. Level access means the finished floor of the shower area sits flush with the rest of the room, so the build-up has to be found from somewhere. In an upstairs room that usually comes out of the joist depth, which is precisely why the survey matters more here than in a standard bathroom.
- Establish whether the floor is timber or concrete before anything else.
- Confirm where the waste can run and what fall is achievable.
- Check the door threshold and how the finished floor meets the landing.
Waterproofing is the whole job
In a standard bathroom, a tray contains the water. In a wet room, the room contains the water, so the tanking behind the tiles is the only thing standing between the shower and the structure. It is applied to the floor, up the walls to a sensible height, and carried into the corners and around the drain as a continuous layer.
This is the part of the job worth watching. Once tiles are on, nobody can inspect it, and a failure shows up as a stain on a ceiling below rather than as anything visible in the room itself. Ask to see it before it is covered.
- Tanking should be continuous across the floor and up the wet walls.
- Corners, the drain surround and pipe penetrations need particular attention.
- Ask to see the waterproofing before tiling begins.
Making it comfortable, not just step-free
A wet room that is technically level but cold and awkward is not a success. The practical details matter: where the controls sit so they can be reached without standing under the water, where a screen goes so the rest of the room stays usable, and whether a fold-down seat or a grab rail would be genuinely useful now or later.
Underfloor warmth and a well-sited towel radiator make a large tiled floor far more pleasant, and heated surfaces dry more quickly, which helps keep a wet room looking clean. Ventilation should be sized for a room where the whole floor gets wet rather than for a cubicle.
- Put the shower controls within reach of the entry point, not under the head.
- Decide screen position by where you want the rest of the floor to stay dry.
- Consider seating and rail positions during first fix, when the wall can be reinforced.
Questions to settle before work starts
Wet rooms have fewer opportunities to change your mind than a standard refit, because the floor build-up and drain position are fixed very early. It is worth spending an extra conversation on the layout rather than an extra week undoing it.
Agree the drain position, the extent of the tanking, the tile choice and the screen type before strip-out. Those four decisions determine most of the rest of the work.
Related pages
Questions customers ask
Can any bathroom be converted to a wet room?
Most can, but the cost varies enormously depending on the floor. A ground-floor concrete slab and an upstairs timber floor present very different problems, and the survey is what tells you which one you have.
Will the rest of the room get wet?
Not if the fall and screen are set correctly. A single fixed screen in the right position usually keeps the basin and toilet area dry while keeping the open feel that people want from a wet room.
Is a wet room harder to keep clean?
There is less to clean than a tray and enclosure, but more tiled surface and grout. Larger tiles and fewer joints in the wet area reduce the work, and good ventilation makes more difference than any cleaning product.
The useful summary is that a wet room is a floor and waterproofing job with a shower on top. Spend the planning time on the parts that will be invisible, and the visible part looks after itself.
Truscon can assess whether a level-access wet room is straightforward in your Cardiff property and explain what the floor would need. Photographs and the room dimensions through the contact page are a good place to start.
