Welwyn Garden City, Hertfordshire
Extractor fan installation in Welwyn Garden City
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Welwyn Garden City and AL6, AL7 and AL8.
- From £185 inc VAT per fan
- Free survey
For Welwyn Garden City landlords and homeowners alike, a tested fan is the cheapest ventilation upgrade there is.
We cover Welwyn Garden City and the surrounding AL6, AL7 and AL8 postcodes as part of our work across Hertfordshire. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
Extractor fans in Welwyn Garden City at a glance
- Town
- Welwyn Garden City, Hertfordshire
- Postcode districts
- AL6, AL7 and AL8
- Nearby
- Hatfield (3 miles), Codicote (4 miles) and Hertford (6 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach extractor fans in Welwyn Garden City
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.
Guide prices in Welwyn Garden City
| 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 |
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
- Mould on the bathroom ceiling or around the window
- The fan runs but a sheet of toilet paper does not stick to the grille
- The fan is noisy, rattling or has stopped
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 Welwyn Garden City
What area around Welwyn Garden City do you work in?
All of Hertfordshire. Near Welwyn Garden City that includes Hatfield, Codicote, Hertford and St Albans.
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.
Do you cover Welwyn Garden City and nearby?
Yes. We cover Welwyn Garden City and nearby places including Hatfield, Codicote, Hertford and St Albans. Send your postcode and we will confirm.
What is the price of new extractor fans in Welwyn Garden City?
Guide prices for Welwyn Garden City use East of England rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £185 to £310 inc VAT per fan. We confirm a fixed price in writing before any work starts.
Tell us how many rooms need fans in your Welwyn Garden City home and we will quote them together.
Extractor fans near Welwyn Garden City
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