Extractor fan installation in Northwood Hills

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

We cover Northwood Hills and the surrounding HA4, HA5 and HA6 postcodes as part of our work across Greater London. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.

Extractor fans in Northwood Hills at a glance

Town: Northwood Hills, Greater London
Postcode districts: HA4, HA5 and HA6
Nearby: Northwood (1 mile), Pinner (1 mile) and Ruislip (2 miles)
Price region: London
Survey: Free survey (UK mainland)

Extractor fans for Northwood Hills 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.

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 Northwood Hills

Extractor fan installation guide prices in Northwood Hills
Work	Guide price
New extractor fan through an outside wall (core drilled, wired, tested) (per fan)	£415–£650 inc VAT
New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan)	£525–£900 inc VAT
Inline fan for a shower room or en-suite (loft-mounted, one or two ceiling grilles) (per room)	£650–£1,075 inc VAT

These ranges use our London rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.

Signs it is time to call us

The fan is noisy, rattling or has stopped
The duct ends in the loft rather than outside
A kitchen with a recirculating hood and condensation on the windows

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 Northwood Hills

What is the price of new extractor fans in Northwood Hills?

Guide prices for Northwood Hills use London rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £210 to £355 inc VAT per fan. We confirm a fixed price in writing before any work starts.

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.

Is the survey free in Northwood Hills?

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 Northwood Hills?

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.

Tell us how many rooms need fans in your Northwood Hills home and we will quote them together.