- Postcode districts
- BL3, BL4, M38
- Nearby
- Walkden, Bolton and Radcliffe
- Guide price
- £235–£550
- Typical time on site
- half a day
- Water
- Soft across most of Greater Manchester
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Farnworth?
Guide price in Farnworth: £235–£550 including VAT, depending on the room and what you choose. 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 Farnworth including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Farnworth
In Farnworth we cover BL3, BL4 and M38; we also cover Walkden, 2.3 miles away, and Bolton.
In Farnworth, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. In Farnworth flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. If your Farnworth bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check.
Most of Greater Manchester is supplied with soft water. 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
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
- 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
- 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.
Axial, centrifugal or inline
Axial fans suit short, straight runs; centrifugal fans cope better with longer ducts; inline fans sit in the loft and are the quietest in the room.
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.
