- Postcode districts
- BT5, BT6, BT7
- Nearby
- Belfast, Newtownabbey and Lisburn
- Guide price
- £220–£550
- Typical time on site
- half a day
- Water
- Soft across most of County Antrim
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Castlereagh?
In Castlereagh, a bathroom extractor fan typically costs £220–£550 including VAT, based on Northern Ireland prices. 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.
Extractor fan
- Fan with timer or humidistat
Inline fan
- Ducting to a roof or soffit vent
Continuous extract
- Good for windowless rooms
Guide prices for Castlereagh including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Castlereagh
We cover every part of Castlereagh, including BT5, BT6 and BT7, and nearby Belfast (2.3 miles) and Newtownabbey (6 miles).
In Castlereagh, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. In Castlereagh flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. Fans fitted in Castlereagh bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room.
Water across much of County Antrim is soft. Even so, condensation is the bigger problem in any bathroom, and a properly sized extractor is what deals with it. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
- A backdraught shutter and external grille, so cold air does not blow back in
Decisions to make first
Axial, centrifugal or inline
Axial fans suit short, straight runs; centrifugal fans cope better with longer ducts; inline fans sit in the loft and are the quietest in the room.
Timer or humidistat
A timer keeps the fan running after the light goes off. A humidistat starts it whenever moisture rises, which suits rooms where people forget.
Rules that apply in Northern Ireland
In Northern Ireland, ventilation is covered by Technical Booklet K, and building control is involved where a new bathroom is formed. There is no Part P, but the fan should be wired, tested and certified to BS 7671.
