Home ventilation, West Sussex
Extractor fan installation in West Sussex
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested, across West Sussex.
- From £195 inc VAT per fan
- Free survey
A good fan in the right place cures a lot of condensation in West Sussex homes on its own.
Every job in West Sussex gets a written quote before it starts and a commissioning record when it finishes. We cover Burgess Hill, Crawley, Worthing, Bognor Regis and Littlehampton and the villages around them.
Extractor fans in West Sussex at a glance
- Area
- West Sussex
- Towns listed
- 16, largest Crawley
- Postcode districts
- BN16, RH6, RH10, BN6, BN45 and BN18
- Price region
- South East
- Survey
- Free survey (UK mainland)
What extractor fan installation involves
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. Wales, Scotland and Northern Ireland have their own rules, which we follow where the job is.
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 West Sussex
| 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 |
Guide prices using South East rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
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 West Sussex
- Crawley
- Worthing
- Bognor Regis
- Littlehampton
- Horsham
- Haywards Heath
- Chichester
- Burgess Hill
- East Grinstead
- Shoreham-by-Sea
- Lancing
- Rustington
- Broadfield
- Hurstpierpoint
- Barnham
- Selsey
Questions about extractor fan installation in West Sussex
Which rules apply to ventilation in West Sussex?
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.
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.
Which towns in West Sussex do you cover?
All of West Sussex, including Burgess Hill, Crawley, Worthing, Bognor Regis and Littlehampton. If your town is not listed, send the postcode and we will confirm.
Are prices different in West Sussex?
Our guide prices are adjusted by region. In West Sussex 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.
Send a photo of the existing fan and the outside wall and we will price your West Sussex job quickly.
Other services in West Sussex
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.