- Postcode districts
- BH22
- Nearby
- Wimborne Minster, Bournemouth and Christchurch
- Guide price
- £255–£600
- Typical time on site
- half a day
- Water
- Hard across most of Dorset
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Ferndown?
Our guide price for a bathroom extractor fan in Ferndown is £255–£600 including VAT. 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 Ferndown including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Ferndown
We cover every part of Ferndown, including BH22, and nearby Wimborne Minster (4 miles) and Bournemouth (6.1 miles).
Ferndown gets the same process as anywhere else: a free survey at your home and a written, itemised quote. Fans fitted in Ferndown bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room. If your Ferndown 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.
Most of Dorset 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
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
- A check of the room, any existing fan or vent, and the shortest route to the outside
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
Decisions to make first
Noise
Compare the stated noise level in decibels. Inline fans and low-speed continuous fans are much quieter in the room than budget axial fans.
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.

