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New en-suite design & installation

Add a private en-suite that works with the room, the property and the drainage.

We create new bedroom, loft and compact en-suites from our Fulham base, starting with feasibility rather than forcing a showroom layout into a space that cannot support it.

What you are actually adding

A new en-suite is a small building project, not just three bathroom fittings.

The shower, toilet and basin are the visible part. Behind them can be new walls, a door, soil and waste pipework, hot and cold water, ventilation, electrics, waterproofing, heating, tiling and making good the bedroom.

That is why our first question is not “which suite do you like?” It is whether the room can support a proper en-suite without leaving you with awkward access, unreliable drainage or an unusable bedroom.

New partitions, door opening and room formation where required
Soil, waste and water-service planning before fittings are chosen
Ventilation, electrics, waterproofing and heating considered as part of the room
Sanitaryware, shower, tiling and final finishing coordinated as one project
New en-suite construction planned around drainage, ventilation and available bedroom space

Feasibility first

Five things we need to know before saying an en-suite will work.

A compact room can be perfectly workable, but only when the services and remaining bedroom are considered at the same time.

01

Usable space

We measure the bedroom, door positions, windows, wardrobes and circulation so the new room does not destroy the space it is meant to improve.

02

Soil & waste route

The WC needs a sensible discharge route and the shower and basin need reliable falls. The route can influence the whole position of the en-suite.

03

Water supply

We look at hot-water provision, pressure and flow so the proposed shower and fittings suit the property rather than only the brochure.

04

Ventilation

A new internal shower room needs a proper ventilation strategy. We consider the route and practical installation before the room is enclosed.

05

Structure & access

Floor construction, ceiling height, access for pipework and the route for materials all affect how straightforward the build will be.

Survey

Free home survey

For suitable planned projects, we inspect the room and discuss the options before giving a project-specific proposal.

En-suite options

Different properties need different types of en-suite.

There is no single “standard” en-suite. The layout should follow the room and the building.

Bedroom

En-suite within an existing bedroom

Form a private shower room inside a suitable bedroom while protecting the remaining sleeping, storage and circulation space.

How bedroom en-suites are planned
Compact

Small and space-efficient en-suites

Use carefully selected shower sizes, basins, WC projections and door arrangements where every centimetre matters.

See small en-suite planning
Loft

Loft en-suites

Plan around sloping ceilings, restricted headroom, floor structure, long service runs and the practical route for waste and ventilation.

See loft en-suite planning
Rental

Spare-room and landlord en-suites

For rental rooms, we look at the build alongside the remaining bedroom size, durability and the realistic value of having private facilities.

Explore spare-room potential

From empty corner to finished room

What the installation process involves.

The exact sequence varies, but a properly formed en-suite normally moves through these stages rather than jumping straight to fitting products.

1

Survey & layout

Measure the space, check the property and agree where the shower, WC, basin and door can realistically sit.

2

Form the room

Create or alter partitions and openings where needed, while planning access for services and future maintenance.

3

First fix

Install or alter soil, waste and water pipework together with the required electrical and ventilation routes.

4

Prepare & waterproof

Prepare floors and walls, form shower areas and waterproof the wet zones before decorative finishes are installed.

5

Tile & fit out

Install tiles or agreed finishes, sanitaryware, brassware, shower enclosure, heating, lighting and accessories.

6

Test & hand over

Test the room, complete finishing details and leave the new en-suite ready for normal use.

Finished private en-suite designed for a London home

Products come after feasibility

We can work with the style you want without ignoring what has to fit behind it.

You can bring product links, screenshots or a look you like. We then check dimensions, clearances and installation requirements before anything important is ordered.

Shower trays, screens and doors checked against the actual opening
Wall-hung, close-coupled and compact WC options considered against the service void
Basins and vanities sized around door swings and usable standing space
Brassware and shower performance checked against the water system

Budget & programme

What should you allow for a new en-suite?

A new en-suite costs more than replacing an existing bathroom because the room and services often have to be created from scratch.

Budget guide

Many projects around £12,000–£18,000+

That is a broad planning range, not a fixed quotation. Simpler layouts with nearby drainage and existing services can come in lower, while new walls, difficult access, specification, tiling, ventilation and structural work can move the final figure higher.

Read the detailed en-suite cost guide
Time

Allow roughly two working weeks as a starting point

A straightforward build can often be planned around that sort of programme. More complex drainage, structural changes, drying times, specialist finishes or difficult access can extend it.

A real place to discuss the project

Based at 287 Munster Road, Fulham.

En-Suites & Bathrooms Ltd is not just a lead-generation website. We have a street-facing Fulham shop/consultation base where you can discuss the room, show us your ideas and arrange the next step.

0207 386 0000
Send room photographs and your postcode on WhatsApp
Free home surveys for suitable planned projects in our core area
En-suite planning and consultation from our Fulham base

Questions before you enquire

New en-suite FAQs

Can you add an en-suite to an existing bedroom?+

Often, yes. The deciding factors are usable bedroom space and whether we can create practical routes for the WC soil pipe, shower and basin waste, water supplies and ventilation. We check those before committing to a layout.

What is actually included in building a new en-suite?+

Depending on the property, the work can include partitions, a new door, drainage, hot and cold water, ventilation, electrics, waterproofing, wall and floor finishes, sanitaryware, shower fittings, heating and making good the surrounding bedroom.

Can you build an en-suite where there is no nearby soil pipe?+

Sometimes, but the drainage strategy becomes a key part of the survey. A conventional gravity route is preferable where it is practical; other solutions may be possible in suitable situations. We will not promise a layout until the route has been assessed.

How small can an en-suite be?+

There is no useful single minimum that guarantees a good room. Shower size, door position, WC projection, basin depth, maintenance access and the remaining bedroom all matter. Compact rooms work best when every fitting is selected around the measured space.

How much does a new en-suite cost?+

Many complete new en-suite projects fall around £12,000–£18,000+, although simpler layouts with nearby drainage and existing services can come in lower. The final quotation depends on the actual room, drainage route, building work and finish.

How long does it take?+

Roughly two working weeks can be a sensible starting allowance for a straightforward project. Complex drainage, structural work, specialist finishes and property access can add time.

Do I have to buy products from you?+

No. You can show us products you like and we can check them against the room and installation. The quotation will make clear what is supplied, what is an allowance and what is customer supplied.

Want to know whether an en-suite will work in your room?

Send us the postcode, a few photographs and a rough idea of where you would like the en-suite. If it looks suitable, we can arrange a free home survey and work out the practical route before you spend money on products.

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