- Postcode districts
- DH2
- Nearby
- Washington, Houghton-Le-Spring and Stanley
- Guide price
- £225–£550
- Typical time on site
- half a day
- Water
- Moderately hard across most of County Durham
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Chester-le-Street?
As a guide, budget £225 to £550 including VAT for a bathroom extractor fan in Chester-le-Street; your written quote will pin it down. We adjust the national guide for North East England, where prices are typically about 10% below the UK average. 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 Chester-le-Street including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Chester-le-Street
As well as Chester-le-Street itself (DH2), we survey in Washington, Houghton-Le-Spring and Stanley.
In Chester-le-Street, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. If your Chester-le-Street bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. In Chester-le-Street flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey.
Water across much of County Durham is moderately hard. 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
- 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
- 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.

