- Postcode districts
- CT19, CT20
- Nearby
- Dover, Ashford and Deal
- 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 Folkestone?
For Folkestone, our guide range for a bathroom extractor fan is £280 to £650 including VAT. 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 Folkestone including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Folkestone
We cover every part of Folkestone, including CT19 and CT20, and nearby Dover (7 miles) and Ashford (13.5 miles).
In Folkestone, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. In Folkestone flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. If your Folkestone 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.
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
- A backdraught shutter and external grille, so cold air does not blow back in
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- A check of the room, any existing fan or vent, and the shortest route to the outside
Decisions to make first
Wall or ceiling
A wall fan on an outside wall is the simplest. A ceiling fan over the shower takes steam away at source but needs ducting through the loft.
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.

