Extractor fan installation in Amersham on the Hill

A good fan in the right place cures a lot of condensation in Amersham on the Hill homes on its own.

Customers in Amersham on the Hill can get a guide price online in a couple of minutes. It uses South East rates, which is what we would charge for the same job anywhere in Buckinghamshire. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.

Extractor fans in Amersham on the Hill at a glance

Town: Amersham on the Hill, Buckinghamshire
Postcode districts: HP5, HP6 and HP7
Nearby: Amersham (1 mile), Chesham (2 miles) and Chorleywood (4 miles)
Price region: South East
Survey: Free survey (UK mainland)

Extractor fans for Amersham on the Hill homes

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.

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 Amersham on the Hill

Extractor fan installation guide prices in Amersham on the Hill
Work	Guide price
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

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.

Signs it is time to call us

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 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 Amersham on the Hill

What is the price of new extractor fans in Amersham on the Hill?

Guide prices for Amersham on the Hill use South East rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £195 to £325 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 Amersham on the Hill?

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 Amersham on the Hill?

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.

Send a photo of the existing fan and the outside wall and we will price your Amersham on the Hill job quickly.