- Postcode districts
- E4, E10, E11, E17
- Nearby
- Leytonstone, Tottenham and Stamford Hill
- 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 Walthamstow?
As a guide, budget £300 to £750 including VAT for a bathroom extractor fan in Walthamstow; 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
- Ducted to outside
Inline fan
- Grille in the ceiling
Continuous extract
- Low-energy fan running all the time
Guide prices for Walthamstow including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Walthamstow
In Walthamstow we cover E4, E10, E11 and 1 more postcode districts; we also cover Leytonstone, 2 miles away, and Tottenham.
London homes in Walthamstow often mean stairs, permits and neighbours below; we plan the logistics as carefully as the bathroom. We check the duct route at Walthamstow surveys, because a short, straight run to outside matters more than the fan's headline figure. In Walthamstow flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey.
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
- A backdraught shutter and external grille, so cold air does not blow back in
- 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
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
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.
Timer or humidistat
A timer keeps the fan running after the light goes off. A humidistat starts it whenever moisture rises, which suits rooms where people forget.
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.
