- Postcode districts
- EC1, EC1A, EC1M, EC1R, EC1V, EC1Y + 6 more
- Nearby
- Archway, Tottenham and Walthamstow
- 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 Islington?
For Islington, our guide range for a bathroom extractor fan is £300 to £750 including VAT. 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 Islington including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Islington
As well as Islington itself (EC1, EC1A, EC1M and 9 more postcode districts), we survey in Archway, Tottenham and Walthamstow.
In Islington, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. In Islington flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. If your Islington home is listed or in a period terrace, a fan ducted through the loft to a roof vent can avoid a new hole in the front wall, though consent may still apply.
Water across much of Greater London is 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 check of the room, any existing fan or vent, and the shortest route to the outside
- Making good around the fan and checking that it extracts properly at the grille
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
Decisions to make first
Intermittent or continuous
An intermittent fan runs during and after use. A continuous fan runs quietly all the time at a low rate and boosts when humidity rises.
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.
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.
