Balham, Greater London
Extractor fan installation in Balham
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Balham and SW4, SW11 and SW12.
- From £210 inc VAT per fan
- Free survey
A good fan in the right place cures a lot of condensation in Balham homes on its own.
Work in Balham follows the rules for England and finishes with a written record of what was fitted and how it was set up.
Extractor fans in Balham at a glance
- Town
- Balham, Greater London
- Postcode districts
- SW4, SW11 and SW12
- Nearby
- Brixton Hill (1 mile), Latchmere (2 miles) and Earlsfield (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.
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 Balham
| Work | Guide price |
|---|---|
| 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 |
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £210–£355 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
- 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
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. 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 Balham
Do you cover Balham and nearby?
Yes. We cover Balham and nearby places including Brixton Hill, Latchmere, Earlsfield and Streatham. Send your postcode and we will confirm.
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.
What is the price of new extractor fans in Balham?
Guide prices for Balham 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.
Is the survey free in Balham?
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.
Ask about humidity-controlled fans for your Balham bathroom, so it clears itself without anyone remembering.
Extractor fans near Balham
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