- Postcode districts
- BT1, BT2, BT3, BT4, BT5, BT6 + 8 more
- Nearby
- Newtownabbey, Lisburn and Newtownards
- 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 Belfast?
For Belfast, our guide range for a bathroom extractor fan is £220 to £550 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.
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 Belfast including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Belfast
We cover every part of Belfast, including BT1, BT2, BT3 and 11 more postcode districts, and nearby Newtownabbey (4.4 miles) and Lisburn (6.7 miles).
In a city the size of Belfast, parking and access for a skip are worth sorting before the start date — we will ask at the survey. If your Belfast bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. We check the duct route at Belfast surveys, because a short, straight run to outside matters more than the fan's headline figure.
Supplies across most of County Antrim are 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
- Making good around the fan and checking that it extracts properly at the grille
- A backdraught shutter and external grille, so cold air does not blow back in
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
Decisions to make first
Noise
Compare the stated noise level in decibels. Inline fans and low-speed continuous fans are much quieter in the room than budget axial fans.
Replacement air
A fan needs air to replace what it removes, so leave a gap of around 10 mm under the door or fit a door grille. A sealed room starves the fan.
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.
