- Postcode districts
- CT14, CT16, CT17
- Nearby
- Folkestone, Deal and Canterbury
- Guide price
- £280–£650
- Typical time on site
- half a day
- Water
- Very hard across most of Kent
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Dover?
Guide price in Dover: £280–£650 including VAT, depending on the room and what you choose. We adjust the national guide for South East England, where prices are typically about 12% above the UK average. 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 Dover including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Dover
We work right across Dover — CT14, CT16 and CT17 — and in neighbouring Folkestone and Deal.
In Dover, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. If your Dover bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. For windowless bathrooms in Dover homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch.
Most of Kent has very 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
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
- A check of the room, any existing fan or vent, and the shortest route to the outside
- A backdraught shutter and external grille, so cold air does not blow back in
Decisions to make first
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.
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.
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.
