- Postcode districts
- TW3, TW4, TW5, TW7, TW8, TW13 + 2 more
- Nearby
- Isleworth, Heston and Feltham
- Guide price
- £300–£750
- Typical time on site
- half a day
- Water
- Very hard across most of Greater London
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Hounslow?
Our guide price for a bathroom extractor fan in Hounslow is £300–£750 including VAT. Labour costs in London put local prices at about 25% above the UK guide figure. 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 Hounslow including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Hounslow
We work right across Hounslow — TW3, TW4, TW5 and 5 more postcode districts — and in neighbouring Isleworth and Heston.
London homes in Hounslow often mean stairs, permits and neighbours below; we plan the logistics as carefully as the bathroom. Fans fitted in Hounslow bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room. If your Hounslow bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check.
Most of Greater London 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
- A check of the room, any existing fan or vent, and the shortest route to the outside
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
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.
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.
