- Postcode districts
- NN15, NN16
- Nearby
- Wellingborough, Corby and Rushden
- Guide price
- £240–£600
- Typical time on site
- half a day
- Water
- Hard across most of Northamptonshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Kettering?
Our guide price for a bathroom extractor fan in Kettering is £240–£600 including VAT. We adjust the national guide for East Midlands, where prices are typically about 4% below the UK average. 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 Kettering including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Kettering
We work right across Kettering — NN15 and NN16 — and in neighbouring Wellingborough and Corby.
Homes in and around Kettering vary, so we look at the floor, the walls and the water system before we price anything. We check the duct route at Kettering surveys, because a short, straight run to outside matters more than the fan's headline figure. If your Kettering bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check.
Supplies across most of Northamptonshire 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
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- A backdraught shutter and external grille, so cold air does not blow back in
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
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.

