Brentford, Greater London
Extractor fan installation in Brentford
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Brentford and TW7, TW8 and TW9.
- From £210 inc VAT per fan
- Free survey
We fit bathroom, kitchen and utility fans across Brentford, sized to the room rather than the cheapest box.
Whether the property is in the middle of Brentford or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
Extractor fans in Brentford at a glance
- Town
- Brentford, Greater London
- Postcode districts
- TW7, TW8 and TW9
- Nearby
- Kew (1 mile), Ealing Common (2 miles) and Isleworth (2 miles)
- 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.
Like-for-like replacement
A new fan on the existing duct and wiring, often with an overrun timer or humidity sensor.
New fan through an outside wall
Core drilled, sleeved, wired from a fused spur and sealed outside.
Guide prices in Brentford
| Work | Guide price |
|---|---|
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £525–£900 inc VAT |
| Inline fan for a shower room or en-suite (loft-mounted, one or two ceiling grilles) (per room) | £650–£1,075 inc VAT |
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £475–£825 inc VAT |
Guide prices using London rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Common reasons people call
- Mould on the bathroom ceiling or around the window
- The fan runs but a sheet of toilet paper does not stick to the grille
- The fan is noisy, rattling or has stopped
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). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Brentford
Is the survey free in Brentford?
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.
What size extractor fan does a bathroom need?
In England a bathroom fan should extract at least 15 litres a second, measured at the fan, under Approved Document F. Long or bendy duct runs reduce flow, so the fan often needs to be rated higher than the minimum.
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.
How do I get a price for new extractor fans in Brentford?
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 Brentford do you work in?
All of Greater London. Near Brentford that includes Kew, Ealing Common, Isleworth and Richmond.
We can usually fit a replacement fan in Brentford in a single short visit.
Extractor fans near Brentford
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Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.