- Postcode districts
- BD11, BD19, WF12, WF13, WF15, WF16 + 1 more
- Nearby
- Batley, Ossett and Heckmondwike
- Guide price
- £230–£550
- Typical time on site
- half a day
- Water
- Soft across most of West Yorkshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Dewsbury?
As a guide, budget £230 to £550 including VAT for a bathroom extractor fan in Dewsbury; your written quote will pin it down. Labour costs in Yorkshire and the Humber put local prices at about 7% below the UK guide figure. The figure depends on the size of the room, whether anything moves, and the products you pick.
Extractor fan
- Ducted to outside
Inline fan
- Grille in the ceiling
Continuous extract
- Low-energy fan running all the time
Guide prices for Dewsbury including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Dewsbury
As well as Dewsbury itself (BD11, BD19, WF12 and 4 more postcode districts), we survey in Batley, Ossett and Heckmondwike.
In Dewsbury, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. For windowless bathrooms in Dewsbury homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch. Fans fitted in Dewsbury bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room.
Supplies across most of West Yorkshire 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
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- A backdraught shutter and external grille, so cold air does not blow back in
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- A check of the room, any existing fan or vent, and the shortest route to the outside
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.
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 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.

