- Postcode districts
- RH10, RH11
- Nearby
- Horley, Horsham and East Grinstead
- Guide price
- £280–£650
- Typical time on site
- half a day
- Water
- Hard across most of West Sussex
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Crawley?
In Crawley, a bathroom extractor fan typically costs £280–£650 including VAT, based on South East England prices. 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
- Ducted to outside
Inline fan
- Grille in the ceiling
Continuous extract
- Low-energy fan running all the time
Guide prices for Crawley including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Crawley
We work right across Crawley — RH10 and RH11 — and in neighbouring Horley and Horsham.
Crawley has a wide mix of house ages, so the survey is where we spot old lead pipework, weak joists or a tight soil stack. In Crawley flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. For windowless bathrooms in Crawley homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch.
Water across much of West Sussex is 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 fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- Making good around the fan and checking that it extracts properly at the grille
- A check of the room, any existing fan or vent, and the shortest route to the outside
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.
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.

