- Postcode districts
- BB1, BB2, BB3
- Nearby
- Darwen, Accrington and Haslingden
- Guide price
- £235–£550
- Typical time on site
- half a day
- Water
- Soft across most of Lancashire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Blackburn?
Guide price in Blackburn: £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 Blackburn including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Blackburn
We work right across Blackburn — BB1, BB2 and BB3 — and in neighbouring Darwen and Accrington.
Across a large town like Blackburn, homes range from older terraces to newer estates; the survey tells us which pipework and floor we are dealing with. Fans fitted in Blackburn bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room. If your Blackburn bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check.
Most of Lancashire 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
- A backdraught shutter and external grille, so cold air does not blow back in
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- A check of the room, any existing fan or vent, and the shortest route to the outside
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
Decisions to make first
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.
Noise
Compare the stated noise level in decibels. Inline fans and low-speed continuous fans are much quieter in the room than budget axial fans.
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.

