- Postcode districts
- WA5
- Nearby
- Warrington, Newton-le-Willows and Widnes
- Guide price
- £235–£550
- Typical time on site
- half a day
- Water
- Moderately hard across most of Cheshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Great Sankey?
For Great Sankey, our guide range for a bathroom extractor fan is £235 to £550 including VAT. We adjust the national guide for North West England, where prices are typically about 6% below the UK average. 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 Great Sankey including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Great Sankey
We work right across Great Sankey — WA5 — and in neighbouring Warrington and Newton-le-Willows.
In Great Sankey, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. If your Great Sankey bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. If your Great Sankey 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.
Most of Cheshire has moderately hard water. 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
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- 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
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
Decisions to make first
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.
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.
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.

