Chiswick, Greater London
Extractor fan installation in Chiswick
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Chiswick and W3, W4 and W6.
- From £210 inc VAT per fan
- Free survey
We fit bathroom, kitchen and utility fans across Chiswick, sized to the room rather than the cheapest box.
Whether the property is in the middle of Chiswick 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 Chiswick at a glance
- Town
- Chiswick, Greater London
- Postcode districts
- W3, W4 and W6
- Nearby
- Acton (1 mile), Barnes (1 mile) and Kew (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach extractor fans in Chiswick
The rate a fan delivers through a real duct run is often far lower than the number on the box, which is why we size to the room and test the result. 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.
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.
Inline fans
A quiet fan in the loft serving one or two ceiling grilles in a shower room or en-suite.
Guide prices in Chiswick
| Work | Guide price |
|---|---|
| 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 |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £525–£900 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
- The fan runs but a sheet of toilet paper does not stick to the grille
- The fan is noisy, rattling or has stopped
- The duct ends in the loft rather than outside
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 Chiswick
What is the price of new extractor fans in Chiswick?
Guide prices for Chiswick use London rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £210 to £355 inc VAT per fan. We confirm a fixed price in writing before any work starts.
How much does it cost to fit an extractor fan?
Replacing a fan on an existing duct usually costs £175 to £295 including VAT. A new fan through an outside wall is typically £345 to £545, and a fan ducted to outside through the loft £445 to £745.
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.
Is the survey free in Chiswick?
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.
How do I get a price for new extractor fans in Chiswick?
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.
We can usually fit a replacement fan in Chiswick in a single short visit.
Extractor fans near Chiswick
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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.