- Postcode districts
- BT47, BT48
- Nearby
- Limavady, Coleraine and Magherafelt
- Guide price
- £4,000–£7,900
- Typical time on site
- 4–8 working days
- Water
- Soft across most of County Londonderry
- Survey
- Free, at your home
What does an en-suite cost in Derry?
As a guide, budget £4,000 to £7,900 including VAT for an en-suite in Derry; your written quote will pin it down. Labour costs in Northern Ireland put local prices at about 12% below the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Existing en-suite, same layout
Upgrade
- Fitted furniture with storage
New en-suite
- Ventilation and electrics to regulations
Guide prices for Derry including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Derry
In Derry we cover BT47 and BT48; we also cover Limavady, 14.7 miles away, and Coleraine.
Derry is a big place with every kind of home, from terraces to flats to new builds, so we never price from a photo alone. If the en-suite in your Derry home was squeezed in by a previous owner, a refit is a chance to fix the door swing and the tray size. If your Derry en-suite fan just blows into the loft, we can duct it properly to outside as part of the refit.
Most of County Londonderry is supplied with soft water. If that holds for your street in Derry, limescale on shower glass and heads builds up slowly and a squeegee after use is usually enough. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- A door that suits a tight space: inward, outward, sliding or a pocket door
- A shower tray or level-access former, an enclosure or walk-in panel, and a thermostatic valve
- A short-projection or wall-hung WC and a compact basin chosen to keep the floor clear
- IP-rated lighting, a shaver socket and the electrics done by a qualified electrician, tested and certified
Decisions to make first
Refit or new en-suite
A refit keeps the existing drainage and walls. A new en-suite costs more because the walls, waste route, fan duct and electrics all start from nothing.
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.
Rules that apply in Northern Ireland
In Northern Ireland, building control covers the new drainage and ventilation for an en-suite, with ventilation set out in Technical Booklet K. There is no Part P, but the wiring should still be designed, tested and certified to BS 7671.

