- Postcode districts
- KT12, TW16, TW17
- Nearby
- Walton-on-Thames, West Molesey and Ashford
- Guide price
- £2,000–£5,000
- Typical time on site
- 2–4 working days
- Water
- Hard across most of Surrey
- Survey
- Free, at your home
What does a cloakroom or downstairs WC cost in Sunbury-on-Thames?
As a guide, budget £2,000 to £5,000 including VAT for a cloakroom or downstairs WC in Sunbury-on-Thames; your written quote will pin it down. Labour costs in South East England put local prices at about 12% above the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Existing downstairs WC
Upgrade
- Vanity basin with storage
New cloakroom
- Extractor fan to regulations
Guide prices for Sunbury-on-Thames including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Sunbury-on-Thames
In Sunbury-on-Thames we cover KT12, TW16 and TW17; we also cover Walton-on-Thames, 1.2 miles away, and West Molesey.
Homes in and around Sunbury-on-Thames vary, so we look at the floor, the walls and the water system before we price anything. For a new cloakroom in Sunbury-on-Thames, the first thing we look at is where the nearest drain or soil stack runs. If the only toilet in your Sunbury-on-Thames home is upstairs, a cloakroom under the stairs or in the utility can save a lot of trips.
Most of Surrey has hard water. 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 concealed cistern frame or WC unit where the space allows
- Splashback or feature tiling and a new floor, often LVT or porcelain
- A survey that checks the headroom under the stairs, the door swing and how the waste will reach the drain
- An extractor fan ducted to outside, wired with an overrun timer or linked to the light
Decisions to make first
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.
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.
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.

