- Postcode districts
- L31
- Nearby
- Kirkby, Litherland and Ormskirk
- Guide price
- £235–£550
- Typical time on site
- half a day
- Water
- Soft across most of Merseyside
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Maghull?
Our guide price for a bathroom extractor fan in Maghull is £235–£550 including VAT. Prices in North West England run at about 6% below 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 Maghull including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Maghull
As well as Maghull itself (L31), we survey in Kirkby, Litherland and Ormskirk.
Homes in and around Maghull vary, so we look at the floor, the walls and the water system before we price anything. If your Maghull 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. In Maghull flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey.
Water across much of Merseyside is soft. Even so, condensation is the bigger problem in any bathroom, and a properly sized extractor is what deals with it. 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
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
- A check of the room, any existing fan or vent, and the shortest route to the outside
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
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.
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.

