En-suites in Chelsea

Postcode districts: SW3, SW7, SW10
Nearby: Battersea, Fulham and Shepherds Bush
Guide price: £5,600–£11,250
Typical time on site: 4–8 working days
Water: Very hard across most of Greater London
Survey: Free, at your home

What does an en-suite cost in Chelsea?

Our guide price for an en-suite in Chelsea is £5,600–£11,250 including VAT. 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

£5,000–£8,800

Tiling, lighting and extractor fan

Typical

Upgrade

£7,500–£12,000

Walk-in shower or larger tray

New en-suite

£8,800–£17,500

New stud walls, drainage and pump if needed

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.

London homes in Chelsea often mean stairs, permits and neighbours below; we plan the logistics as carefully as the bathroom. We quote new en-suites in Chelsea only after checking the drainage route on site, so the price reflects the work your house actually needs. If you live in a Chelsea flat, check the lease before planning a new en-suite, as freeholder consent is often needed for new drainage and vents.

Most of Greater London has very hard water. If your supply in Chelsea is the same, limescale on shower glass and heads is a real issue: easy-clean glass, rub-clean nozzles and a squeegee make a big difference. Hardness varies street by street, so check the figure for your postcode with your water supplier.

What the job includes

IP-rated lighting, a shaver socket and the electrics done by a qualified electrician, tested and certified
An extractor fan ducted to outside, sized to the room and wired with an overrun timer or humidistat
A pumped waste or macerator where gravity drainage is not possible, and only where the house already has a WC on gravity drainage
A door that suits a tight space: inward, outward, sliding or a pocket door

Decisions to make first

Shower size

A 900 mm square tray is a comfortable minimum for an enclosure. In a long, narrow room, a 1200 by 800 mm walk-in tray with one glass panel feels far more generous.

Refit or new en-suite

A refit keeps the existing drainage and walls. A new en-suite costs more because the walls, waste route, fan duct and electrics all start from nothing.

Rules that apply in England

In England, a new en-suite brings in Part H for the new connection to the soil stack, Approved Document F for ventilation, at 15 litres per second intermittent or 8 litres per second continuous extract, and Part P for the new circuits. The electrician should be registered with a competent person scheme, or the work notified to building control. On a refit, avoid replacing the fan with a less effective one.

More about en-suites

En-suites in Chelsea: questions

How much does an en-suite cost in Chelsea?

An en-suite in Chelsea usually costs £5,600–£11,250 including VAT. Expect the lower end for a like-for-like job with standard products, and the upper end if things move or you choose premium finishes. Your quote is itemised and fixed in writing once agreed.

Is the water hard in Chelsea?

Who handles building control for an en-suite 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 an en-suite take?

Allow 4–8 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 you put an en-suite anywhere?

Almost anywhere the waste can reach the soil stack. Gravity drainage needs a steady fall in the pipe, so the further the en-suite is from the stack, the more depth you need under the floor or behind boxing. Where that is not possible, a pumped waste or macerator can be used if the home already has a WC on gravity drainage. Our guide to adding an en-suite covers this in more detail.