- Postcode districts
- BT51, BT52, BT55
- Nearby
- Limavady, Magherafelt and Derry
- 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 Coleraine?
For Coleraine, our guide range for an en-suite is £4,000 to £7,900 including VAT. Prices in Northern Ireland run at about 12% below the national guide, mainly because of labour rates. The figure depends on the size of the room, whether anything moves, and the products you pick.
Refit
- Shower, basin and WC replaced
Upgrade
- Full-height porcelain tiling
New en-suite
- Formed inside an existing bedroom
Guide prices for Coleraine including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Coleraine
As well as Coleraine itself (BT51, BT52 and BT55), we survey in Limavady, Magherafelt and Derry.
Homes in and around Coleraine vary, so we look at the floor, the walls and the water system before we price anything. If your Coleraine en-suite fan just blows into the loft, we can duct it properly to outside as part of the refit. If your Coleraine home has one bathroom and a good-sized main bedroom, an en-suite is often the change that eases the morning queue.
Water across much of County Londonderry is soft. If that holds for your street in Coleraine, 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
- 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
- A pumped waste or macerator where gravity drainage is not possible, and only where the house already has a WC on gravity drainage
- A short-projection or wall-hung WC and a compact basin chosen to keep the floor clear
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.

