Dorking, Surrey
Extractor fan installation in Dorking
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Dorking and KT23, RH3 and RH4.
- From £195 inc VAT per fan
- Free survey
A good fan in the right place cures a lot of condensation in Dorking homes on its own.
Dorking is about 113 miles from our base in Great Barr, Birmingham. We book Dorking visits by appointment and confirm the date in writing. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
Extractor fans in Dorking at a glance
- Town
- Dorking, Surrey
- Postcode districts
- KT23, RH3 and RH4
- Nearby
- Great Bookham (4 miles), Leatherhead (4 miles) and Ashtead (6 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
Extractor fans for Dorking 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.
Inline fans
A quiet fan in the loft serving one or two ceiling grilles in a shower room or en-suite.
Kitchen extract and cooker hoods
A wall or window fan, or a cooker hood ducted outside rather than recirculating.
Guide prices in Dorking
| Work | Guide price |
|---|---|
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £380–£600 inc VAT |
| 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 |
South East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
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
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 Dorking
How do I get a price for new extractor fans in Dorking?
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.
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.
What area around Dorking do you work in?
All of Surrey. Near Dorking that includes Great Bookham, Leatherhead, Ashtead and Reigate.
Do you cover Dorking and nearby?
Yes. We cover Dorking and nearby places including Great Bookham, Leatherhead, Ashtead and Reigate. Send your postcode and we will confirm.
Get a guide price online, then we confirm it for your Dorking home at the visit.
Extractor fans near Dorking
More services in Dorking
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.