Derby, Derbyshire
Extractor fan installation in Derby
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Derby and DE1, DE22 and DE23.
- From £170 inc VAT per fan
- Free survey
Many extractor fans in Derby homes need replacing because they never extracted properly.
Work in Derby follows the rules for England and finishes with a written record of what was fitted and how it was set up.
Extractor fans in Derby at a glance
- Town
- Derby, Derbyshire
- Postcode districts
- DE1, DE22 and DE23
- Nearby
- Chaddesden (2 miles), Oakwood (2 miles) and Sinfin (3 miles)
- Price region
- East Midlands
- Survey
- Free survey (UK mainland)
How we approach extractor fans in Derby
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 Derby
| Work | Guide price |
|---|---|
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £170–£290 inc VAT |
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £340–£525 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £435–£725 inc VAT |
These ranges use our East Midlands 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
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 Derby
What area around Derby do you work in?
All of Derbyshire. Near Derby that includes Chaddesden, Oakwood, Sinfin and Belper.
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.
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 cover Derby and nearby?
Yes. We cover Derby and nearby places including Chaddesden, Oakwood, Sinfin and Belper. Send your postcode and we will confirm.
What is the price of new extractor fans in Derby?
Guide prices for Derby use East Midlands rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £170 to £290 inc VAT per fan. We confirm a fixed price in writing before any work starts.
Ask about humidity-controlled fans for your Derby bathroom, so it clears itself without anyone remembering.
Extractor fans near Derby
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