- Postcode districts
- DH1
- Nearby
- Spennymoor, Chester-le-Street and Houghton-Le-Spring
- 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 Durham?
For Durham, our guide range for a bathroom extractor fan is £225 to £550 including VAT. 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
- Wired to regulations
Inline fan
- Quiet fan in the loft void
Continuous extract
- Boost on humidity
Guide prices for Durham including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Durham
In Durham we cover DH1; we also cover Spennymoor, 5.5 miles away, and Chester-le-Street.
In a city the size of Durham, parking and access for a skip are worth sorting before the start date — we will ask at the survey. If your Durham 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. Fans fitted in Durham bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room.
Most of County Durham has moderately hard water. 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
- 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
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.
