- Postcode districts
- BA12
- Nearby
- Westbury, Frome and Trowbridge
- 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 Warminster?
Guide price in Warminster: £255–£600 including VAT, depending on the room and what you choose. 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 Warminster including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Warminster
We work right across Warminster — BA12 — and in neighbouring Westbury and Frome.
Being a smaller town does not change how we work in Warminster: free survey, written quote, one team. If your Warminster bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. For windowless bathrooms in Warminster homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch.
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
- Making good around the fan and checking that it extracts properly at the grille
- 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
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
Decisions to make first
Timer or humidistat
A timer keeps the fan running after the light goes off. A humidistat starts it whenever moisture rises, which suits rooms where people forget.
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.
