En-suite installations in Kent
En-suite installations
across Kent — small spaces
engineered properly
New and replacement en-suites across Kent and Medway. Compact layouts, concealed pipework, proper waste falls and tanked shower zones — handed over with full certification and a workmanship guarantee.
What it covers
En-suites added to existing bedrooms, lofts and master suites — properly engineered, not bodged
An en-suite is the most demanding room in the house for its size. You're fitting a WC, basin and shower into 2–4 square metres, usually upstairs, often a long way from the existing soil stack. Get the falls wrong, hide push-fit joints behind tiles, or skimp on tanking — and you'll be tearing it back out in two years.
Our en-suite work covers new installations in master bedrooms, converted lofts and box rooms, plus full replacements of tired existing en-suites. We design the layout around the constraints — soil stack location, joist direction, ceiling height below — rather than forcing a generic plan into a space it doesn't fit.
Where the en-suite is below the soil stack or a long horizontal run from it, we'll specify and install a properly rated macerator or pumped waste, sized for the appliances rather than the smallest unit on the merchant's shelf. Where gravity drainage is possible, we'll set the falls with a laser and pressure-test before any tiles go on.
What happens if you wait
An en-suite installed badly is a leak waiting to happen above your bedroom
Most en-suite failures sit above another room — usually the kitchen, lounge or master bedroom. A weeping joint behind a tile, a missed tanking detail under the tray, or a waste run set with no fall ends up dripping through a downstairs ceiling. The cost of putting it right is almost always more than the cost of doing it properly first time.
A concealed leak in an upstairs en-suite typically destroys the ceiling below before anyone notices. Plaster, paint and electrics all come down with it.
Undersized or wrongly specified macerators block, overheat and fail — usually at the worst possible moment. Correct specification matters more than brand.
An en-suite without proper extraction grows mould inside the tile grout and timber framing within months. Building Regs require mechanical extraction.
Common mistakes we fix every week
- Running a shower waste at zero fall to fit the floor build-up — water pools and the trap stinks.
- Tiling onto plasterboard in a wet zone with no tanking membrane.
- Buying a macerator on price alone — the cheap units only handle a WC, not a shower as well.
- Connecting the new soil into the existing stack without checking venting and aerial connection rules.
- Skipping the extractor fan because 'there's a window' — usually opening into a roof void, not outside air.
- Concealing push-fit joints behind tiled walls with no access panel.
Our process
A predictable, step-by-step system — no surprises, no upsells
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STEP 01Free site survey
On-site measure, layout sketch, discussion of drainage route, ventilation and electrical supply.
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STEP 02Fixed-price quote
Itemised written quote — first fix, second fix, materials, electrics, sanitary ware, exclusions and timeline.
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STEP 03Strip-out & first fix
Existing room (if any) stripped out; new pipework, waste runs, electrical first fix and ventilation installed and pressure-tested.
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STEP 04Plaster, tank & tile
Plastering, full tanking to wet zones and tiling — sequenced so each trade has a dry, ready surface to work on.
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STEP 05Second fix & commission
Sanitary ware, brassware, shower screen, extractor and electrics installed; the whole system commissioned and demonstrated.
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STEP 06Sign-off & handover
Walk-around, paperwork pack including any Part P certification, photos of concealed first fix, and a written workmanship guarantee.
What you get
Concrete outcomes — not vague promises
We design around your soil stack, joists and headroom — not a generic catalogue plan.
Where pumped waste is needed, we specify a unit rated for every appliance on the run — not the cheapest box on the shelf.
Every gravity waste run is set with a laser level and pressure-tested before tiling begins.
Mechanical extraction installed and ducted to outside air — Building Regs compliant and mould-free.
Soldered or compression joints behind tiles — push-fit only where it can be accessed via a service panel.
Workmanship guaranteed for up to 5 years from installation, with photos of completed first fix on file.
Technical detail
What makes an en-suite last 20 years instead of 2
En-suites fail in predictable ways — drainage, waterproofing, ventilation. Each one has a right answer; the trouble is that the right answer takes longer, costs slightly more on materials and isn't visible at handover. Here's what we do differently.
Drainage and venting — get the route right before you tile
Every WC needs venting. Every shower needs a minimum 1-in-40 fall. Every basin needs a trap with the right seal depth for the run length. We plan the drainage route before specifying anything else — sometimes that means moving the proposed WC location by 200mm to avoid a 6-metre horizontal run with three bends.
Macerators and pumped waste — specification matters
Macerators get a bad name because they're routinely undersized. A WC-only unit installed behind a shower fails within months. We specify units rated for every appliance on the run, install them on dedicated electrical circuits with isolators, and fit access panels so service is possible without ripping out tiles.
- Unit rated for WC + shower + basin combined
- Dedicated RCD-protected circuit with isolator switch
- Access panel positioned for filter and impeller service
- Vented to soil stack or external air per manufacturer specification
Tanking — small rooms, big consequences
En-suites have proportionally more wet-zone surface than family bathrooms. We tank the entire shower enclosure and the floor under the tray, lap into wall tanking, and detail every wall penetration separately. Tiles and grout are decoration; the tanking membrane is what keeps the water out of the joists.
Ventilation — not optional, never an afterthought
Building Regs Part F requires mechanical extraction in any new en-suite. We install humidity-sensing extract fans ducted in rigid duct to an external grille, never flexible duct dumped into a roof void. The fan runs on with timer overrun and ties into the lighting circuit through a fused spur.
Frequently asked
Straight answers to the questions Kent homeowners ask us most
How much does an en-suite installation cost in Kent?+
A typical new en-suite in Kent runs from £5,000 to £9,000 depending on size, drainage route, spec and tiling choice. Replacement en-suites can start lower because drainage and electrical routes already exist. We give a fixed price after a free site survey — no per-day creep.
How long will the work take?+
A typical en-suite installation takes 1–2 weeks from strip-out to handover. New en-suites with drainage routed to an existing stack can take 2–3 weeks. We give you a written day-by-day sequence before starting.
Can you fit an en-suite without access to a soil stack?+
Yes — we install correctly specified macerators and pumped-waste systems where gravity drainage isn't possible. Specification is critical: we size the unit for every appliance on the run, not just the WC.
Do I need Building Regs sign-off for a new en-suite?+
Yes in most cases — particularly for ventilation, drainage and electrical work. We handle Part P certification on notifiable electrics and advise on Building Control notification where required.
Can I supply my own sanitary ware?+
Yes — we're happy to install client-supplied taps, mixers and sanitary ware. We'll review the spec before purchase and flag anything that won't perform with your water pressure or layout.
Will the new en-suite affect the bedroom layout above or below?+
We plan the soil run and ventilation route at survey stage and tell you up front if any ceilings below need access. There are no surprises mid-project.
Do you offer a guarantee?+
Yes — workmanship is guaranteed for up to 5 years from the date of installation. Sanitary ware, brassware and showers carry their own manufacturer warranties.
What areas do you cover for en-suite installations?+
Kent and Medway as standard — Rochester, Chatham, Gillingham, Maidstone, Dartford, Gravesend and Sittingbourne. Wider South East considered on a per-mile travel basis.
Related services
Areas we cover
Add an en-suite that actually lasts.
Free site survey across Kent. Fixed price in writing. One named lead from strip-out to handover with full certification and a workmanship guarantee.
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