Westminster, Greater London
Extractor fan installation in Westminster
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Westminster and SW1, SW1E and SW1H.
- From £210 inc VAT per fan
- Free survey
If the bathroom mirror in your Westminster home stays steamed up, the fan probably is not moving enough air.
For extractor fan installation in Westminster, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
Extractor fans in Westminster at a glance
- Town
- Westminster, Greater London
- Postcode districts
- SW1, SW1E and SW1H
- Nearby
- Vincent Square (under a mile), Pimlico (1 mile) and St James's (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach extractor fans in Westminster
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.
Like-for-like replacement
A new fan on the existing duct and wiring, often with an overrun timer or humidity sensor.
New fan through an outside wall
Core drilled, sleeved, wired from a fused spur and sealed outside.
Guide prices in Westminster
| Work | Guide price |
|---|---|
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £475–£825 inc VAT |
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £210–£355 inc VAT |
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £415–£650 inc VAT |
Guide prices using London rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
When to get it looked at
- Mirror still steamed up 20 minutes after a shower
- Mould on the bathroom ceiling or around the window
- The fan runs but a sheet of toilet paper does not stick to the grille
Rules that apply 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.
Questions from Westminster
Is the survey free in Westminster?
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 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.
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.
How do I get a price for new extractor fans in Westminster?
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.
What area around Westminster do you work in?
All of Greater London. Near Westminster that includes Vincent Square, Pimlico, St James's and West End.
Send a photo of the existing fan and the outside wall and we will price your Westminster job quickly.
Extractor fans near Westminster
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.