Cheam, Greater London
Extractor fan installation in Cheam
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Cheam and SM1, SM2 and SM3.
- From £210 inc VAT per fan
- Free survey
Many extractor fans in Cheam homes need replacing because they never extracted properly.
We cover Cheam and the surrounding SM1, SM2 and SM3 postcodes as part of our work across Greater London. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
Extractor fans in Cheam at a glance
- Town
- Cheam, Greater London
- Postcode districts
- SM1, SM2 and SM3
- Nearby
- Sutton (1 mile), Ewell (2 miles) and Belmont (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach extractor fans in Cheam
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.
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 Cheam
| 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 |
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
- Mirror still steamed up 20 minutes after a shower
- Mould on the bathroom ceiling or around the window
- The fan runs but a sheet of toilet paper does not stick to the grille
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 Cheam
What is the price of new extractor fans in Cheam?
Guide prices for Cheam 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.
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.
Do you need building regulations for a new extractor fan?
Fitting or replacing an extractor fan has to meet the ventilation and electrical rules, and certain electrical work is notifiable. We do the work to the current standards. Electrical work that is notifiable is certified by a registered electrician, and you get a copy of the certificate and our airflow readings.
Is the survey free in Cheam?
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 Cheam?
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.
Send a photo of the existing fan and the outside wall and we will price your Cheam job quickly.
Extractor fans near Cheam
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