Borehamwood, Hertfordshire
Extractor fan installation in Borehamwood
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Borehamwood and HA8, WD6 and WD7.
- From £185 inc VAT per fan
- Free survey
For Borehamwood landlords and homeowners alike, a tested fan is the cheapest ventilation upgrade there is.
Borehamwood is about 93 miles from our base in Great Barr, Birmingham. We book Borehamwood visits by appointment and confirm the date in writing. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
Extractor fans in Borehamwood at a glance
- Town
- Borehamwood, Hertfordshire
- Postcode districts
- HA8, WD6 and WD7
- Nearby
- Edgwarebury (2 miles), Barnet (3 miles) and Totteridge (4 miles)
- Price region
- East of England
- Survey
- Free survey (UK mainland)
How we approach extractor fans in Borehamwood
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.
Guide prices in Borehamwood
| Work | Guide price |
|---|---|
| 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 |
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 that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. 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.
Questions from Borehamwood
What is the price of new extractor fans in Borehamwood?
Guide prices for Borehamwood 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.
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.
Is the survey free in Borehamwood?
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 do I get a price for new extractor fans in Borehamwood?
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.
Book a Borehamwood visit and we will test the fan you have before recommending a new one.
Extractor fans near Borehamwood
More services in Borehamwood
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.