- Postcode districts
- BS5, BS15, BS16
- Nearby
- Kingswood, Keynsham and Yate
- Guide price
- £255–£600
- Typical time on site
- half a day
- Water
- Hard across most of Gloucestershire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Mangotsfield?
As a guide, budget £255 to £600 including VAT for a bathroom extractor fan in Mangotsfield; 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 Mangotsfield including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Mangotsfield
We work right across Mangotsfield — BS5, BS15 and BS16 — and in neighbouring Kingswood and Keynsham.
Homes in and around Mangotsfield vary, so we look at the floor, the walls and the water system before we price anything. In Mangotsfield flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. For windowless bathrooms in Mangotsfield homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch.
Supplies across most of Gloucestershire 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
- Making good around the fan and checking that it extracts properly at the grille
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
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.
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.

