- Postcode districts
- TW15, TW16, TW17, TW18
- Nearby
- Egham, Ashford and Chertsey
- Guide price
- £280–£650
- Typical time on site
- half a day
- Water
- Hard across most of Surrey
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Staines?
Guide price in Staines: £280–£650 including VAT, depending on the room and what you choose. Prices in South East England run at about 12% 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 Staines including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Staines
We cover every part of Staines, including TW15, TW16, TW17 and 1 more postcode districts, and nearby Egham (2 miles) and Ashford (2.1 miles).
Homes in and around Staines vary, so we look at the floor, the walls and the water system before we price anything. Fans fitted in Staines bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room. For windowless bathrooms in Staines homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch.
Most of Surrey has 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
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- A check of the room, any existing fan or vent, and the shortest route to the outside
- A backdraught shutter and external grille, so cold air does not blow back in
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
Decisions to make first
Wall or ceiling
A wall fan on an outside wall is the simplest. A ceiling fan over the shower takes steam away at source but needs ducting through the loft.
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.
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.

