Home ventilation, Surrey
Extractor fan installation in Surrey
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested, across Surrey.
- From £195 inc VAT per fan
- Free survey
A common fault in Surrey homes is a bathroom fan ducted into the loft instead of outside.
Across Surrey the job is priced the same way wherever you are: what is fitted, how long it takes and how far we travel. Towns we cover include Redhill, Staines, Banstead, Leatherhead and Ewell.
Extractor fans in Surrey at a glance
- Area
- Surrey
- Towns listed
- 35, largest Woking
- Postcode districts
- TW16, GU21, GU22, GU1, GU2 and KT7
- Price region
- South East
- Survey
- Free survey (UK mainland)
What the work involves
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. 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.
New fan through an outside wall
Core drilled, sleeved, wired from a fused spur and sealed outside.
Guide prices in Surrey
| Work | Guide price |
|---|---|
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £195–£325 inc VAT |
| 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 |
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £435–£775 inc VAT |
These ranges use our South East rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- 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 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.
How the job runs
- Quick survey
- Choose the fan
- Fit and duct
- Wire
- Test
Towns we cover in Surrey
- Woking
- Guildford
- Esher
- Redhill
- Staines
- Banstead
- Leatherhead
- Ewell
- Farnham
- Epsom
- Camberley
- Egham
- Sunbury-on-Thames
- Ashford (Surrey)
- Walton-on-Thames
- Godalming
- Reigate
- Horley
- Caterham
- Weybridge
- East Molesey
- West Molesey
- Dorking
- Haslemere
- Cobham
- Chertsey
- Hale (Surrey)
- Addlestone
- Ashtead
- Oxted
- Frimley
- Great Bookham
- Stanwell
- Cranleigh
- Shepperton
Questions about extractor fan installation in Surrey
Are prices different in Surrey?
Our guide prices are adjusted by region. In Surrey we use South East rates, so like-for-like extractor fan replacement (existing duct and wiring) is typically £195 to £325 inc VAT per fan.
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 Surrey?
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.
Which rules apply to ventilation in Surrey?
In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Get a guide price online, then we confirm it for your Surrey home at the visit.
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