A downstairs toilet is one of the smallest rooms in the house and one of the most used. It is where visitors go, where children dash in from the garden, and where everyone ends up when the main bathroom is busy. That makes it worth getting right: a WC that does not crowd the door, a basin you can actually wash your hands in, and a fan that clears the room.
We refit existing cloakrooms, usually in two to four working days, and form new ones under the stairs, in a utility or in part of a garage. A new cloakroom is mostly a drainage question. If the WC can reach the soil stack or a ground-floor drain on gravity, the job is straightforward. If it cannot, a macerator can be used, but only where the house already has a toilet on gravity drainage.
What does a cloakroom or downstairs WC with us include?
- A survey that checks the headroom under the stairs, the door swing and how the waste will reach the drain
- Compact sanitaryware: a short-projection, back-to-wall or wall-hung WC and a corner, wall-hung or slim vanity basin
- A concealed cistern frame or WC unit where the space allows
- A new waste connection to the soil stack or drain, or a macerator where the rules allow it
- Splashback or feature tiling and a new floor, often LVT or porcelain
- An extractor fan ducted to outside, wired with an overrun timer or linked to the light
- Lighting wired by a qualified electrician, tested and certified
- Strip-out of the old fittings, waste removal and making good on the hall side
How much does a cloakroom or downstairs WC cost?
Our UK guide range is £1,800–£4,500 including VAT. Typical prices by kind of job:
Refit
- Existing downstairs WC
- Compact WC and corner or wall basin
- Splashback tiling, new floor
Upgrade
- Wall-hung WC with concealed frame
- Vanity basin with storage
- Feature tiles and lighting
New cloakroom
- Formed under the stairs or in a utility
- New waste or macerator
- Extractor fan to regulations
National guide prices including VAT, reviewed October 2026. London is typically about 25% higher and the North East, Wales and Northern Ireland around 7–12% lower. Your written quote after the survey is the price that counts.
What do you need to decide?
Basin
A corner basin fits the tightest rooms. A slim vanity basin with a cupboard underneath gives somewhere to keep spare toilet rolls and soap, and hides the trap.
WC style
A wall-hung WC on a frame gives the most floor space and looks neat. A back-to-wall pan in a short furniture unit is easier to fit against an uneven wall.
Under-stair layout
Headroom drops quickly under stairs. The basin and the space in front of the WC need standing height; the low end of the room can take the cistern or storage.
Door
An outward-opening door is usually needed so it does not hit the WC. A sliding door suits a narrow hallway where an outward door would block the way.
Finishes
A small room can carry a bolder tile or wallpaper. A feature wall behind the WC costs far less here than in a full bathroom because there is so little of it.
Macerator or gravity
Gravity drainage is silent and needs no maintenance. A macerator lets a WC go where a pipe could not otherwise fall, provided another WC in the house is on gravity drainage.
