- Postcode districts
- SN11
- Nearby
- Chippenham, Devizes and Melksham
- Guide price
- £255–£600
- Typical time on site
- half a day
- Water
- Hard across most of Wiltshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Calne?
As a guide, budget £255 to £600 including VAT for a bathroom extractor fan in Calne; your written quote will pin it down. 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 Calne including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Calne
We cover every part of Calne, including SN11, and nearby Chippenham (5.3 miles) and Devizes (6.1 miles).
Being a smaller town does not change how we work in Calne: free survey, written quote, one team. If your Calne bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. In Calne flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey.
Most of Wiltshire has hard water. Steam carries that scale onto mirrors and glass, so a fan that clears the room quickly helps on both counts. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- A backdraught shutter and external grille, so cold air does not blow back in
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- A check of the room, any existing fan or vent, and the shortest route to the outside
- Making good around the fan and checking that it extracts properly at the grille
Decisions to make first
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.
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.

