What does an en-suite cost in West Sussex?
Our guide range in West Sussex is £5,000–£10,000 including VAT. Prices in West Sussex run at about 12% above the UK guide, based on South East England labour rates.
Refit
- Tiling, lighting and extractor fan
Upgrade
- Walk-in shower or larger tray
New en-suite
- New stud walls, drainage and pump if needed
Guide prices for West Sussex including VAT. Your itemised written quote after the free survey is the price that counts.
Which towns do we cover in West Sussex?
- Crawley
- Worthing
- Bognor Regis
- Littlehampton
- Horsham
- Haywards Heath
- Chichester
- Burgess Hill
- East Grinstead
- Shoreham-by-Sea
- Emsworth
- Lancing
Supplies across most of West Sussex are hard. If your supply in Crawley is the same, limescale on shower glass and heads is a real issue: easy-clean glass, rub-clean nozzles and a squeegee make a big difference. Hardness varies street by street, so check the figure for your postcode with your water supplier. If your Crawley en-suite fan just blows into the loft, we can duct it properly to outside as part of the refit.
What the job includes
- IP-rated lighting, a shaver socket and the electrics done by a qualified electrician, tested and certified
- A shower tray or level-access former, an enclosure or walk-in panel, and a thermostatic valve
- A pumped waste or macerator where gravity drainage is not possible, and only where the house already has a WC on gravity drainage
- Tiling, silicone, testing and making good on the bedroom side of any new walls
- Stud walls with acoustic insulation and moisture-resistant board for a new en-suite
- An extractor fan ducted to outside, sized to the room and wired with an overrun timer or humidistat
Decisions to make first
Night lighting
A mirror light or low-level LED strip on its own switch lets you use the en-suite at night without the full glare of the ceiling lights.
Noise
Acoustic insulation in the stud walls and a quiet fan make a real difference when one of you showers early while the other is still asleep.
Exposed or concealed valve
An exposed bar valve is quicker to fit and easy to service. A concealed valve looks cleaner but sits inside the wall, so plan how it will be reached for repairs.
Door type
An outward-opening door frees floor space inside. A sliding pocket door saves space on both sides but needs a stud wall long enough to take the cassette.
Rules that apply in England
Forming an en-suite inside an existing bedroom does not normally need planning permission, but it is usually building-regulations work because it adds drainage, ventilation and electrics. All wiring must meet BS 7671, with 30 mA RCD protection on every circuit in the room. A macerator or pumped WC is acceptable only where the home also has a WC on gravity drainage. In a listed building, a new soil or vent pipe through a wall needs listed building consent.
In England, a new en-suite brings in Part H for the new connection to the soil stack, Approved Document F for ventilation, at 15 litres per second intermittent or 8 litres per second continuous extract, and Part P for the new circuits. The electrician should be registered with a competent person scheme, or the work notified to building control. On a refit, avoid replacing the fan with a less effective one.

