East Barnet, Greater London
Extractor fan installation in East Barnet
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering East Barnet and EN4, EN5 and N20.
- From £210 inc VAT per fan
- Free survey

If the bathroom mirror in your East Barnet home stays steamed up, the fan probably is not moving enough air.
We cover East Barnet and the surrounding EN4, EN5 and N20 postcodes as part of our work across Greater London. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Extractor fans in East Barnet at a glance
- Town
- East Barnet, Greater London
- Postcode districts
- EN4, EN5 and N20
- Nearby
- Cockfosters (1 mile), New Barnet (1 mile) and Hadley Wood (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
What the work involves
For England, Approved Document F gives minimum intermittent extract rates: 15 litres a second for a bathroom, 30 for a kitchen with a cooker hood (60 without one), 30 for a utility room and 6 for a WC. Wales, Scotland and Northern Ireland have their own rules, which we follow where the job is.
New fan through an outside wall
Core drilled, sleeved, wired from a fused spur and sealed outside.
Ducted to outside through the loft
Insulated duct to a roof, ridge or soffit outlet so warm moist air does not condense in the loft.
Guide prices in East Barnet
| Work | Guide price |
|---|---|
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £475–£825 inc VAT |
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £210–£355 inc VAT |
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £415–£650 inc VAT |
London rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- A kitchen with a recirculating hood and condensation on the windows
- Mirror still steamed up 20 minutes after a shower
- Mould on the bathroom ceiling or around the window
Rules that apply in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
Questions from East Barnet
Is the survey free in East Barnet?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
Can an extractor fan vent into the loft?
No. A fan should discharge to outside, because warm, moist air dumped in the loft condenses on the cold roof timbers and causes mould and rot there instead.
Should I get a fan with a humidity sensor?
A humidistat fan switches on when the air gets damp and runs until it clears, which suits family bathrooms and rentals where people forget the switch. A continuous-running fan is another good option.
How do I get a price for new extractor fans in East Barnet?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
What area around East Barnet do you work in?
All of Greater London. Near East Barnet that includes Cockfosters, New Barnet, Hadley Wood and Barnet.
Get a guide price online, then we confirm it for your East Barnet home at the visit.
Extractor fans near East Barnet
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.