- Postcode districts
- L18, L19, L25
- Nearby
- Hunts Cross, Garston and Halewood
- Guide price
- £235–£550
- Typical time on site
- half a day
- Water
- Soft across most of Merseyside
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Allerton?
Our guide price for a bathroom extractor fan in Allerton is £235–£550 including VAT. Labour costs in North West England put local prices at about 6% below the UK guide figure. 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 Allerton including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Allerton
As well as Allerton itself (L18, L19 and L25), we survey in Hunts Cross, Garston and Halewood.
Allerton gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your Allerton home is listed or in a period terrace, a fan ducted through the loft to a roof vent can avoid a new hole in the front wall, though consent may still apply. For windowless bathrooms in Allerton homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch.
Most of Merseyside is supplied with soft water. 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
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
- A backdraught shutter and external grille, so cold air does not blow back in
- Making good around the fan and checking that it extracts properly at the grille
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
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.
Wall or ceiling
A wall fan on an outside wall is the simplest. A ceiling fan over the shower takes steam away at source but needs ducting through the loft.
Rules that apply in England
In England, Approved Document F sets bathroom extract at 15 l/s for an intermittent fan or 8 l/s for continuous extract. Wiring a new fan alters a circuit in a room with a bath or shower, so it is notifiable under Part P.
