En-suite installation in Wimbledon
New en-suites carved out of bedrooms, lofts and landings — drainage, ventilation and all.

The Edwardian semis of Wimbledon Park and Raynes Park are prime en-suite territory: big principal bedrooms with alcoves and box rooms beside them, and floor structure generous enough to run waste at proper falls. The Village houses mostly have en-suites already — there the job is enlargement, often taking in an adjacent dressing room. In the terraces, the honest answer is sometimes that the middle bedroom is too small to lose 2.5m² from, and we say so; a first-rate family bathroom beats a cramped en-suite at resale here.
The houses we see in Wimbledon
South Wimbledon and Merton Park are Victorian terraces — compact bathrooms, timber floors, external stacks. Wimbledon Park and Raynes Park step up to Edwardian semis with bigger rooms and better structure. The Village and the Ridgway are large detached and semi-detached houses, many with multiple bathrooms and en-suites already, where the work is renovation to a high specification rather than first provision. Mansion blocks around the Park add leasehold work with communal stacks.
What en-suites involves
Adding a new en-suite in south London costs £4,500–£8,000 excluding VAT and takes two to three weeks. The build itself is a small bathroom; what decides feasibility and price is drainage — how far the new room sits from the soil stack — and ventilation, since most en-suites are internal rooms with no window.
This is for you if
- The main bedroom is large enough to give up 2–3m² without feeling it
- A loft conversion needs its shower room finished or added
- One family bathroom is refereeing the whole household every morning
- A guest room that would let better — or list better — with its own shower
- There is a dressing room, deep cupboard or dead landing corner doing nothing
- You are pre-empting teenage years
What's included
- Feasibility first: drainage route, stack position and joist runs checked at survey
- Stud partition built, sound-insulated and boarded for tiling
- Waste runs with proper falls — or a correctly specified pump where gravity cannot
- Shower, basin and WC in a layout drawn to fit the space, not squeezed
- Ducted extraction to outside — non-negotiable in a windowless room
- Part P certification and building-control compliance for the drainage
The standard we work to
New drainage connections and internal-room ventilation fall under Building Regulations Parts H and F; electrics under Part P. Macerators sized and specified where gravity falls are impossible.
The full write-up — costs, timings and the questions people ask — is on our en-suite installation page. Prices and standards are the same in every town we cover.
| Guide range | £4,500 – £8,000 |
| Typical duration | 2–3 weeks |
| Compliance | New drainage connections and internal-room ventilation fall under Building Regulations Parts H and F |
Guide ranges for budgeting, excluding VAT. We confirm a fixed price after a free home survey — the price we agree is the price you pay.
En-suites in Wimbledon
Two quick steps — we know these houses.
No account, no obligation. We only use this to prepare your quote.
En-suites in neighbouring towns
En-suites in Wimbledon?
Guide range £4,500 – £8,000 excluding VAT, typically 2–3 weeks. Free survey, fixed written quote.

