Guildford, Surrey
Extractor fan installation in Guildford
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Guildford and GU1, GU2 and GU4.
- From £195 inc VAT per fan
- Free survey

A common fault in Guildford homes is a bathroom fan ducted into the loft instead of outside.
Work in Guildford follows the rules for England and finishes with a written record of what was fitted and how it was set up.
Extractor fans in Guildford at a glance
- Town
- Guildford, Surrey
- Postcode districts
- GU1, GU2 and GU4
- Nearby
- Godalming (4 miles), Woking (6 miles) and Cranleigh (8 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach extractor fans in Guildford
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 Guildford
| Work | Guide price |
|---|---|
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £490–£825 inc VAT |
| Inline fan for a shower room or en-suite (loft-mounted, one or two ceiling grilles) (per room) | £600–£975 inc VAT |
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £435–£775 inc VAT |
South East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
When to get it looked at
- A kitchen with a recirculating hood and condensation on the windows
- Mirror still steamed up 20 minutes after a shower
- Mould on the bathroom ceiling or around the window
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Guildford
What area around Guildford do you work in?
All of Surrey. Near Guildford that includes Godalming, Woking, Cranleigh and Aldershot.
How long does fitting a fan take?
A straight replacement takes an hour or two. A new fan with a core-drilled hole or a duct through the loft usually takes half a day.
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.
Do you cover Guildford and nearby?
Yes. We cover Guildford and nearby places including Godalming, Woking, Cranleigh and Aldershot. Send your postcode and we will confirm.
What is the price of new extractor fans in Guildford?
Guide prices for Guildford use South East rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £195 to £325 inc VAT per fan. We confirm a fixed price in writing before any work starts.
Tell us how many rooms need fans in your Guildford home and we will quote them together.
Extractor fans near Guildford
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