What is the difference between a wet room and a walk-in shower?
A walk-in shower uses a tray — low-profile or level-access — with a glass panel and no door; the tray handles the waterproofing. A wetroom has no tray at all: the floor is structurally formed to fall to a drain and the whole room is tanked. Walk-ins cost £2,800–£5,500 and take days; wetrooms £7,000–£12,000 and take weeks.
From standing inside them, the two can look nearly identical — open, glass-panelled, minimal. The difference is under the floor. The walk-in's tray is a manufactured waterproof unit; get the sealant right at its edges and the room below is protected. The wetroom's 'tray' is the room itself: formed falls, membrane envelope, flood test.
The decision usually comes down to three factors. Budget: the walk-in delivers 80 percent of the look for 40 percent of the cost. Structure: some floors (and some leases, in flats) will not take the wetroom's build-up or slab cuts, making the walk-in the honest choice. Access: if genuinely level entry matters — wheelchairs, frames, or futureproofing — the wetroom or a level-access former wins, because even a 40mm tray lip is a lip.
A middle path exists: level-access formers are tray-like units that sit within the floor structure, tiled over, giving a flush floor without full wetroom tanking. We fit plenty — they are the right answer in many upstairs rooms — but they still need proper waterproofing around them, and they are still not a full wetroom envelope.
More in wetrooms & showers, or browse all 38 questions on the FAQ index.
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