- Postcode districts
- LU6
- Nearby
- Luton, Leighton Buzzard and Harpenden
- Guide price
- £265–£650
- Typical time on site
- half a day
- Water
- Very hard across most of Bedfordshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Dunstable?
In Dunstable, a bathroom extractor fan typically costs £265–£650 including VAT, based on East of England prices. We adjust the national guide for East of England, where prices are typically about 6% above the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Extractor fan
- Wired to regulations
Inline fan
- Quiet fan in the loft void
Continuous extract
- Boost on humidity
Guide prices for Dunstable including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Dunstable
As well as Dunstable itself (LU6), we survey in Luton, Leighton Buzzard and Harpenden.
Homes in and around Dunstable vary, so we look at the floor, the walls and the water system before we price anything. In Dunstable flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. If your Dunstable bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check.
Most of Bedfordshire 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 check of the room, any existing fan or vent, and the shortest route to the outside
- 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
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
Decisions to make first
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.
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.
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.
