Chislehurst, Greater London
Extractor fan installation in Chislehurst
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Chislehurst and BR7, DA14 and SE9.
- From £210 inc VAT per fan
- Free survey
Many extractor fans in Chislehurst homes need replacing because they never extracted properly.
For extractor fan installation in Chislehurst, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
Extractor fans in Chislehurst at a glance
- Town
- Chislehurst, Greater London
- Postcode districts
- BR7, DA14 and SE9
- Nearby
- Bickley (2 miles), Sidcup (2 miles) and Eltham (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
Extractor fans for Chislehurst homes
Many existing fans were never doing their job: undersized, ducted into the loft space, fitted with a flex duct crushed in the joists, or switched off by occupants because they were noisy. 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.
Kitchen extract and cooker hoods
A wall or window fan, or a cooker hood ducted outside rather than recirculating.
Like-for-like replacement
A new fan on the existing duct and wiring, often with an overrun timer or humidity sensor.
Guide prices in Chislehurst
| Work | Guide price |
|---|---|
| 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 |
| Inline fan for a shower room or en-suite (loft-mounted, one or two ceiling grilles) (per room) | £650–£1,075 inc VAT |
These ranges use our London rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Signs it is time to call us
- The duct ends in the loft rather than outside
- A kitchen with a recirculating hood and condensation on the windows
- Mirror still steamed up 20 minutes after a shower
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 Chislehurst
What area around Chislehurst do you work in?
All of Greater London. Near Chislehurst that includes Bickley, Sidcup, Eltham and Orpington.
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.
Do you cover Chislehurst and nearby?
Yes. We cover Chislehurst and nearby places including Bickley, Sidcup, Eltham and Orpington. Send your postcode and we will confirm.
What is the price of new extractor fans in Chislehurst?
Guide prices for Chislehurst 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.
Tell us how many rooms need fans in your Chislehurst home and we will quote them together.
Extractor fans near Chislehurst
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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.