- Postcode districts
- BA11
- Nearby
- Westbury, Warminster and Trowbridge
- Guide price
- £255–£600
- Typical time on site
- half a day
- Water
- Hard across most of Somerset
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Frome?
As a guide, budget £255 to £600 including VAT for a bathroom extractor fan in Frome; your written quote will pin it down. The figure depends on the size of the room, whether anything moves, and the products you pick.
Extractor fan
- Ducted to outside
Inline fan
- Grille in the ceiling
Continuous extract
- Low-energy fan running all the time
Guide prices for Frome including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Frome
In Frome we cover BA11; we also cover Westbury, 6.2 miles away, and Warminster.
Homes in and around Frome vary, so we look at the floor, the walls and the water system before we price anything. If your Frome bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. If your Frome 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.
Supplies across most of Somerset are 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
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- Making good around the fan and checking that it extracts properly at the grille
- A check of the room, any existing fan or vent, and the shortest route to the outside
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.
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.
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.

