- Postcode districts
- SG6
- Nearby
- Letchworth Garden City, Stevenage and Luton
- Guide price
- £265–£650
- Typical time on site
- half a day
- Water
- Very hard across most of Hertfordshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Hitchin?
As a guide, budget £265 to £650 including VAT for a bathroom extractor fan in Hitchin; your written quote will pin it down. Prices in East of England run at about 6% above 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
- Ducted to outside
Inline fan
- Grille in the ceiling
Continuous extract
- Low-energy fan running all the time
Guide prices for Hitchin including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Hitchin
We work right across Hitchin — SG6 — and in neighbouring Letchworth Garden City and Stevenage.
In Hitchin, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. If your Hitchin bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. Fans fitted in Hitchin bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room.
Water across much of Hertfordshire is very hard. Steam carries that scale onto mirrors and glass, so a fan that clears the room quickly helps on both counts. 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
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
Decisions to make first
Intermittent or continuous
An intermittent fan runs during and after use. A continuous fan runs quietly all the time at a low rate and boosts when humidity rises.
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.

