- Postcode districts
- SN14, SN15
- Nearby
- Calne, Melksham and Devizes
- Guide price
- £255–£600
- Typical time on site
- half a day
- Water
- Hard across most of Wiltshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Chippenham?
In Chippenham, a bathroom extractor fan typically costs £255–£600 including VAT, based on South West England prices. 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 Chippenham including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Chippenham
We cover every part of Chippenham, including SN14 and SN15, and nearby Calne (5.3 miles) and Melksham (6.1 miles).
Homes in and around Chippenham vary, so we look at the floor, the walls and the water system before we price anything. For windowless bathrooms in Chippenham homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch. Fans fitted in Chippenham bathrooms are wired by a qualified electrician, with RCD protection and an isolator outside the room.
Most of Wiltshire has hard water. 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
- 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
- Making good around the fan and checking that it extracts properly at the grille
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.
Wall or ceiling
A wall fan on an outside wall is the simplest. A ceiling fan over the shower takes steam away at source but needs ducting through the loft.
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.

