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Greater London · SW3

Cloakrooms & downstairs WCs in Chelsea

We handle cloakrooms & downstairs WCs for homeowners and landlords in Chelsea, with the survey, products, strip-out, trades and fitting under one contract.

£2,200–£5,600 inc VAT2–4 working daysFree home survey
Downstairs cloakroom with a compact WC and corner basin, example for Chelsea
Postcode districts
SW3, SW7, SW10
Nearby
Battersea, Fulham and Shepherds Bush
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 Chelsea?

For Chelsea, our guide range for a cloakroom or downstairs WC is £2,200 to £5,600 including VAT. Prices in London run at about 25% above the national guide, mainly because of labour rates. The figure depends on the size of the room, whether anything moves, and the products you pick.

Upgrade

£3,800–£5,600
  • Vanity basin with storage

New cloakroom

£4,400–£9,400
  • Extractor fan to regulations

Guide prices for Chelsea including VAT. Your itemised written quote after the free survey is the price that counts.

Working in Chelsea

We work right across Chelsea — SW3, SW7 and SW10 — and in neighbouring Battersea and Fulham.

In Chelsea, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. Where your Chelsea home already has a WC on gravity drainage, a macerator opens up more places a new cloakroom can go. For a new cloakroom in Chelsea, the first thing we look at is where the nearest drain or soil stack runs.

Water across much of Greater London is 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

  • Lighting wired by a qualified electrician, tested and certified
  • An extractor fan ducted to outside, wired with an overrun timer or linked to the light
  • A concealed cistern frame or WC unit where the space allows
  • A survey that checks the headroom under the stairs, the door swing and how the waste will reach the drain

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.

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.

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.

More about cloakrooms & downstairs WCs

Cloakrooms & downstairs WCs in Chelsea: questions

How much does a cloakroom or downstairs WC cost in Chelsea?

A cloakroom or downstairs WC in Chelsea usually costs £2,200–£5,600 including VAT. The final figure comes down to what you choose and what we find at the survey; your written quote lists every item so you can see where the money goes.

Is the water hard in Chelsea?

Water across much of Greater London is 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.

Who handles building control for a cloakroom or downstairs WC in Chelsea?

Building control for Chelsea is handled by the local council or an approved inspector. If your job needs sign-off — for example a new circuit, new drainage or a new extractor where there was none — we tell you at the survey and handle the notification as part of the work.

How long does a cloakroom or downstairs WC take?

Allow 2–4 working days on site for most jobs, plus the lead time for products after you approve the quote. We give you a day-by-day plan before work starts in Chelsea.

Can I have a macerator toilet in a downstairs cloakroom?

Yes, provided the house already has a WC on gravity drainage, for example in the main bathroom. A macerator pumps the waste through a small-bore pipe, so it can serve a cloakroom some distance from the soil stack. It needs a fused electrical supply, makes a noise while it runs and should only take toilet waste and paper.

Cloakrooms & downstairs WCs in Chelsea

Book a free home survey in Chelsea. You get a measured layout and an itemised written price before anything is ordered.