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

The Maze Hill and Westcombe Park villas — the unconverted ones — take en-suites generously: large bedrooms, tall floor voids, straight runs to substantial stacks. In the Georgian townhouses an en-suite is possible but surgical: drainage drops are planned against the panelling and cornicing that make the house worth owning, and sometimes the right answer is the small rear room as a bathroom rather than an en-suite carved from a fine front bedroom. Peninsula flats mostly have en-suites; we upgrade the builder-grade ones whose sealant and trays fail from year five.
The houses we see in Greenwich
West Greenwich and the streets up to the park are Georgian and early-Victorian townhouses — flat-fronted brick, sash windows, and bathrooms retrofitted at every period since 1900, some elegantly, some appallingly. Maze Hill and Westcombe Park are large Victorian villas, many converted to flats. East Greenwich and Charlton are conventional Victorian terraces. The peninsula is post-2000 apartment stock: concrete frames, internal bathrooms, mechanical ventilation and heat interface units.
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 Greenwich
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 Greenwich?
Guide range £4,500 – £8,000 excluding VAT, typically 2–3 weeks. Free survey, fixed written quote.

