Home ventilation, Norfolk
Extractor fan installation in Norfolk
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested, across Norfolk.
- From £185 inc VAT per fan
- Free survey
Many extractor fans in Norfolk homes need replacing because they never extracted properly.
Norfolk has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.
Extractor fans in Norfolk at a glance
- Area
- Norfolk
- Towns listed
- 11, largest Norwich
- Postcode districts
- IP21, IP22, NR16, NR17, NR30 and NR31
- Price region
- East of England
- Survey
- Free survey (UK mainland)
What extractor fan installation 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.
Ducted to outside through the loft
Insulated duct to a roof, ridge or soffit outlet so warm moist air does not condense in the loft.
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 Norfolk
| Work | Guide price |
|---|---|
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £185–£310 inc VAT |
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £360–£575 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £465–£775 inc VAT |
| Inline fan for a shower room or en-suite (loft-mounted, one or two ceiling grilles) (per room) | £575–£950 inc VAT |
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £415–£725 inc VAT |
Guide prices using East of England 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
- The duct ends in the loft rather than outside
- A kitchen with a recirculating hood and condensation on the windows
- Mirror still steamed up 20 minutes after a shower
Rules in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
How the job runs
- Quick survey
- Choose the fan
- Fit and duct
- Wire
- Test
Towns we cover in Norfolk
- Norwich
- Great Yarmouth
- King's Lynn
- Thetford
- Bowthorpe
- East Dereham
- North Walsham
- Downham Market
- Diss
- Attleborough
- Bradwell
Questions about extractor fan installation in Norfolk
Is the survey free in Norfolk?
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.
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.
Which rules apply to ventilation in Norfolk?
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.
Which towns in Norfolk do you cover?
All of Norfolk, including Bowthorpe, East Dereham, North Walsham, Downham Market and Norwich. If your town is not listed, send the postcode and we will confirm.
Book a Norfolk visit and we will test the fan you have before recommending a new one.
Other services in Norfolk
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.