- Postcode districts
- SE2, SE9, SE18, SE28
- Nearby
- Blackheath, Welling and Catford
- 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 Eltham?
As a guide, budget £300 to £750 including VAT for a bathroom extractor fan in Eltham; your written quote will pin it down. 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
- Wired to regulations
Inline fan
- Quiet fan in the loft void
Continuous extract
- Boost on humidity
Guide prices for Eltham including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Eltham
We work right across Eltham — SE2, SE9, SE18 and 1 more postcode districts — and in neighbouring Blackheath and Welling.
In Eltham, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. Fans fitted in Eltham bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room. In Eltham flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey.
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
- Making good around the fan and checking that it extracts properly at the grille
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
- A check of the room, any existing fan or vent, and the shortest route to the outside
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.

