- Postcode districts
- SP1, SP2
- Nearby
- Romsey, Andover and Totton
- 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 Salisbury?
For Salisbury, 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
- Wired to regulations
Inline fan
- Quiet fan in the loft void
Continuous extract
- Boost on humidity
Guide prices for Salisbury including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Salisbury
As well as Salisbury itself (SP1 and SP2), we survey in Romsey, Andover and Totton.
Salisbury is a big place with every kind of home, from terraces to flats to new builds, so we never price from a photo alone. In Salisbury flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. If your Salisbury 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.
Water across much of Wiltshire is hard. 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 fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
- Making good around the fan and checking that it extracts properly at the grille
- A backdraught shutter and external grille, so cold air does not blow back in
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.
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.
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.

