- Postcode districts
- CR4, SM4, SW17
- Nearby
- Morden, Wimbledon and Streatham
- 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 Mitcham?
Our guide price for a bathroom extractor fan in Mitcham is £300–£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
- Wired to regulations
Inline fan
- Quiet fan in the loft void
Continuous extract
- Boost on humidity
Guide prices for Mitcham including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Mitcham
In Mitcham we cover CR4, SM4 and SW17; we also cover Morden, 1.3 miles away, and Wimbledon.
In Mitcham, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. Fans fitted in Mitcham bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room. We check the duct route at Mitcham surveys, because a short, straight run to outside matters more than the fan's headline figure.
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
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- 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
- Making good around the fan and checking that it extracts properly at the grille
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.
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.
