- Postcode districts
- DA5, DA6, DA14, DA15, DA16
- Nearby
- Dartford, Swanley and Barking
- 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 Bexley?
Guide price in Bexley: £300–£750 including VAT, depending on the room and what you choose. Prices in London run at about 25% above the national guide, mainly because of labour rates. 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 Bexley including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Bexley
We cover every part of Bexley, including DA5, DA6, DA14 and 2 more postcode districts, and nearby Dartford (2.8 miles) and Swanley (3.2 miles).
In Bexley, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. In Bexley flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. Fans fitted in Bexley bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room.
Supplies across most of Greater London are very 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
- 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
- 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
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.
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.
