- Postcode districts
- B28, B90, B91
- Nearby
- Solihull, Acocks Green and Birmingham
- Guide price
- £245–£600
- Typical time on site
- half a day
- Water
- Varies across the West Midlands
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Shirley?
Our guide price for a bathroom extractor fan in Shirley is £245–£600 including VAT. 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 Shirley including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Shirley
As well as Shirley itself (B28, B90 and B91), we survey in Solihull, Acocks Green and Birmingham.
In Shirley, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. We check the duct route at Shirley surveys, because a short, straight run to outside matters more than the fan's headline figure. Fans fitted in Shirley bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room.
Supplies across the West Midlands range from soft to hard depending on the source. Scale is a minor issue next to condensation, which is what a properly sized extractor fan is for. 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
- A check of the room, any existing fan or vent, and the shortest route to the outside
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
- 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.
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.
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.
