- Postcode districts
- KT21, KT22
- Nearby
- Epsom, Cobham and Dorking
- Guide price
- £280–£650
- Typical time on site
- half a day
- Water
- Hard across most of Surrey
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Leatherhead?
Our guide price for a bathroom extractor fan in Leatherhead is £280–£650 including VAT. We adjust the national guide for South East England, where prices are typically about 12% above 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 Leatherhead including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Leatherhead
In Leatherhead we cover KT21 and KT22; we also cover Epsom, 3.6 miles away, and Cobham.
In Leatherhead, as anywhere, the age of the house decides a lot: pipe sizes, floor construction and where the soil stack runs. For windowless bathrooms in Leatherhead homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch. If your Leatherhead 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.
Water across much of Surrey is 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
- Making good around the fan and checking that it extracts properly at the grille
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
- A backdraught shutter and external grille, so cold air does not blow back in
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
Decisions to make first
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.
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.
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.
