Wet room installation cost in the UK: £5,000–£13,000 fitted on average (from £3,800 for a small en-suite). What drives the price, by room size, and disabled wet room prices.
August 10, 2026
It's usually the first question, and the hardest to answer with a single number — because so much of the cost is invisible once the room is finished.
In the UK, wet room installation cost typically runs £5,000–£13,000 fully fitted, with an average around £9,000. A small en-suite or cloakroom conversion sits at the lower end, from around £3,800; a full family bathroom typically runs £6,500–£11,000; and a large, high-specification room with premium tile and underfloor heating can reach £12,000–£18,000. The exact figure depends heavily on room size, the existing floor build-up, and whether structural work is needed.
Last updated 27 August 2026 · Elani Journal
Small en-suite or cloakroom (2–3m²): £3,800–£6,500. The most common starting point for a wet room conversion — a compact shower room or en-suite where the floor area being tanked is small.
Standard family bathroom (4–6m²): £6,500–£11,000. The typical full bathroom conversion, including tanking, floor fall, drainage, and mid-range tiling and fittings.
Large or premium room: £12,000–£18,000. Larger floor areas, underfloor heating, premium porcelain or natural stone, and a considered brassware suite all add to both material and labour cost.
Roughly 55–65% of the total is labour and preparation — tanking, floor fall, and drainage — rather than the visible tiles and fittings. This is the opposite of most bathroom renovations, where fittings are often the larger share, and it's the main reason two wet rooms of a similar size can cost noticeably different amounts: the work you can't see is where the budget goes.
Location matters too. London and the South East typically run 20–30% above these figures; the North East, Yorkshire, and Northern Ireland typically run 10–15% below.
A wet room built or adapted for accessibility — level access, a wider door, grab rails, an accessible seat — typically costs £6,000–£12,000, sometimes up to £15,000 depending on the extent of the adaptations and the room's starting condition. This is the range most people mean by disabled wet room prices when comparing quotes.
If the wet room is needed because of a disability or long-term health condition, two things are worth knowing before getting quotes. First, VAT relief: adaptations for a chronic illness or disability can qualify for a reduced or zero rate of VAT on both the installation and specialist products. Second, funding: in England and Wales, a Disabled Facilities Grant is available through your local council, means-tested, worth up to £30,000 in England and £36,000 in Wales (£25,000 in Northern Ireland). Applications are thorough and can take a year or more to process, so it's worth starting the conversation with your council early if you think you may be eligible, rather than waiting until the work is urgent.
The visible fittings — tiles, screen, shower system — are rarely where the budget goes. Tanking the entire wet zone, not just around the shower, and forming a consistent fall to the drain across the floor both take specialist time and materials that a standard shower tray installation skips entirely. If the existing floor needs building up or lowering to achieve the fall, that adds further cost before any finishes are chosen.
A standard shower enclosure sits on top of the existing floor with a pre-formed tray, which is why it's the cheaper option in most cases. A wet room replaces that tray entirely with a tanked, sloped floor — more labour, more waterproofing material, and typically a longer install time. Cost scales with floor area more than most renovation work, because tanking and floor fall are priced per square metre — a small en-suite conversion will cost meaningfully less than converting a full family bathroom.
Get quotes from installers who specialise in wet rooms specifically, not general bathroom fitters. Ask how they tank the floor and walls, what fall system they use, and whether they guarantee the waterproofing. Treat a notably cheaper quote with real caution — if the waterproofing isn't done properly, the failure shows up as damp in the room below, not as a visible leak you can catch early.
Once the structural work is settled, the finishes are where a wet room starts to feel considered rather than purely functional — large format stone or porcelain tile, a glass screen rather than a full enclosure, and hardware that matches the rest of the room. The Elani Forge concealed shower system and Circa mirror in matte black or brushed brass both suit a wet room's pared-back format well.
For the full decision guide on whether a wet room suits your bathroom, see Wet Room Ideas.
Around £9,000 fully fitted, with most projects falling between £5,000 and £13,000. A small en-suite conversion can start from around £3,800; a large, high-specification room can reach £18,000.
Typically £6,000–£12,000, occasionally up to £15,000 depending on the adaptations needed. If the work is for a chronic illness or disability, it may qualify for reduced VAT, and a means-tested Disabled Facilities Grant (up to £30,000 in England, £36,000 in Wales) can help with funding through your local council.
Not when tanked correctly — the waterproof membrane sits beneath the entire floor and up the walls of the wet zone, not just around the shower. Problems trace back almost always to poor installation, not the format itself.
In most cases, no — converting an existing bathroom into a wet room is treated as a like-for-like fitting change. Exceptions can apply in listed buildings or where the work significantly affects the building's structure or drainage — check with your local authority if in doubt.
A walk-in shower typically still has a raised or recessed tray and a defined shower area. A true wet room has no tray — the entire floor is tanked and falls to a single drain, so the shower area and the rest of the room sit at the same level.
