- Postcode districts
- HP5
- Nearby
- Amersham on the Hill, Amersham and Berkhamsted
- Guide price
- £280–£650
- Typical time on site
- half a day
- Water
- Hard across most of Buckinghamshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Chesham?
Guide price in Chesham: £280–£650 including VAT, depending on the room and what you choose. Labour costs in South East England put local prices at about 12% above the UK guide figure. 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 Chesham including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Chesham
We cover every part of Chesham, including HP5, and nearby Amersham on the Hill (1.8 miles) and Amersham (2.4 miles).
Chesham gets the same process as anywhere else: a free survey at your home and a written, itemised quote. If your Chesham bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. In Chesham flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey.
Supplies across most of Buckinghamshire are 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
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- Making good around the fan and checking that it extracts properly at the grille
- A check of the room, any existing fan or vent, and the shortest route to the outside
Decisions to make first
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.
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.
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.
