- Postcode districts
- HA1, HA2, HA3, HA5, HA7
- Nearby
- Brent, Wembley and Northolt
- Guide price
- £2,200–£5,600
- Typical time on site
- 2–4 working days
- Water
- Very hard across most of Greater London
- Survey
- Free, at your home
What does a cloakroom or downstairs WC cost in Harrow?
In Harrow, a cloakroom or downstairs WC typically costs £2,200–£5,600 including VAT, based on London prices. We adjust the national guide for London, where prices are typically about 25% above the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Splashback tiling, new floor
Upgrade
- Wall-hung WC with concealed frame
New cloakroom
- New waste or macerator
Guide prices for Harrow including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Harrow
We work right across Harrow — HA1, HA2, HA3 and 2 more postcode districts — and in neighbouring Brent and Wembley.
London homes in Harrow often mean stairs, permits and neighbours below; we plan the logistics as carefully as the bathroom. If you are refreshing a dated cloakroom in Harrow, a wall-hung WC and slim vanity can change the room in a few days. If the only toilet in your Harrow home is upstairs, a cloakroom under the stairs or in the utility can save a lot of trips.
Supplies across most of Greater London are very hard. Taps, plug wastes and toilet pans scale up quickly, so chrome copes better than matt black, and a removable aerator is worth having. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- A new waste connection to the soil stack or drain, or a macerator where the rules allow it
- 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
- Lighting wired by a qualified electrician, tested and certified
Decisions to make first
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.
Rules that apply in England
In England, a new WC connected to the soil stack or drain is drainage work under Part H, and a newly formed cloakroom without an opening window should have mechanical extract; Approved Document F gives 6 litres per second as the design rate for a WC, against 15 for a bathroom. Because a cloakroom has no bath or shower, adding a light to an existing circuit is not notifiable under Part P, but a new circuit is.

