En-suite installation in Bromley
New en-suites carved out of bedrooms, lofts and landings — drainage, ventilation and all.
Bromley's loft conversions — and Petts Wood's chalet upper floors — drive the en-suite work here. A loft bedroom without its own shower room is a bedroom that under-delivers, and the plumbing usually cooperates: the new room sits directly above the existing bathroom, so the stack connection is one floor down in a straight line. In the unconverted semis, the smaller third bedroom over the front door makes a poor bedroom but a generous en-suite/dressing room for the main bedroom next to it — a swap we have drawn many times.
The houses we see in Bromley
The core is 1930s semi-detached — bay fronts, mock-Tudor gables, a family bathroom over the hall and a separate WC beside it. Petts Wood and West Wickham add chalet bungalows with bathrooms downstairs and loft rooms above. Bickley and Shortlands have larger Victorian and Edwardian villas, often with two or three bathrooms already. Beckenham mixes Victorian terraces with mansion flats. What almost all of it shares: original gravity hot-water systems in various states of replacement, and lofts that have either been converted or are about to be.
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 Bromley
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En-suites in neighbouring towns
En-suites in Bromley?
Guide range £4,500 – £8,000 excluding VAT, typically 2–3 weeks. Free survey, fixed written quote.