- Postcode districts
- EX8
- Nearby
- Exeter, Newton Abbot and Torquay
- 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 Exmouth?
For Exmouth, our guide range for a bathroom extractor fan is £255 to £600 including VAT. 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 Exmouth including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Exmouth
As well as Exmouth itself (EX8), we survey in Exeter, Newton Abbot and Torquay.
Homes in and around Exmouth vary, so we look at the floor, the walls and the water system before we price anything. If your Exmouth 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. In Exmouth flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey.
Water across much of Devon is 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
- A check of the room, any existing fan or vent, and the shortest route to the outside
- A backdraught shutter and external grille, so cold air does not blow back in
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
Decisions to make first
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.
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.

