Ewell, Surrey
Extractor fan installation in Ewell
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Ewell and KT4, KT17 and KT19.
- From £195 inc VAT per fan
- Free survey

A common fault in Ewell homes is a bathroom fan ducted into the loft instead of outside.
We cover Ewell and the surrounding KT4, KT17 and KT19 postcodes as part of our work across Surrey. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Extractor fans in Ewell at a glance
- Town
- Ewell, Surrey
- Postcode districts
- KT4, KT17 and KT19
- Nearby
- Cheam (2 miles), Epsom (2 miles) and Worcester Park (2 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
What the work involves
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. Wales, Scotland and Northern Ireland have their own rules, which we follow where the job is.
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 Ewell
| Work | Guide price |
|---|---|
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £435–£775 inc VAT |
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £195–£325 inc VAT |
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £380–£600 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.
When to get it looked at
- 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. 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 Ewell
Is the survey free in Ewell?
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 Ewell?
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 Ewell do you work in?
All of Surrey. Near Ewell that includes Cheam, Epsom, Worcester Park and Sutton.
Book an Ewell visit and we will test the fan you have before recommending a new one.
Extractor fans near Ewell
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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.