- Postcode districts
- EX39
- Nearby
- Barnstaple, Tiverton and Exeter
- Guide price
- £255–£600
- Typical time on site
- half a day
- Water
- Soft across most of Devon
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Bideford?
In Bideford, a bathroom extractor fan typically costs £255–£600 including VAT, based on South West England prices. The figure depends on the size of the room, whether anything moves, and the products you pick.
Extractor fan
- Wired to regulations
Inline fan
- Quiet fan in the loft void
Continuous extract
- Boost on humidity
Guide prices for Bideford including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Bideford
In Bideford we cover EX39; we also cover Barnstaple, 7.9 miles away, and Tiverton.
In Bideford, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. We check the duct route at Bideford surveys, because a short, straight run to outside matters more than the fan's headline figure. Fans fitted in Bideford bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room.
Most of Devon 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
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- 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
Decisions to make first
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.
Intermittent or continuous
An intermittent fan runs during and after use. A continuous fan runs quietly all the time at a low rate and boosts when humidity rises.
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.

