Marlow, Buckinghamshire
Extractor fan installation in Marlow
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Marlow and SL6, SL7 and SL8.
- From £195 inc VAT per fan
- Free survey

A common fault in Marlow homes is a bathroom fan ducted into the loft instead of outside.
Work in Marlow follows the rules for England and finishes with a written record of what was fitted and how it was set up.
Extractor fans in Marlow at a glance
- Town
- Marlow, Buckinghamshire
- Postcode districts
- SL6, SL7 and SL8
- Nearby
- Maidenhead (4 miles), High Wycombe (4 miles) and Burnham (5 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.
New fan through an outside wall
Core drilled, sleeved, wired from a fused spur and sealed outside.
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.
Guide prices in Marlow
| Work | Guide price |
|---|---|
| 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 |
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £435–£775 inc VAT |
These ranges use our South East rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- The fan runs but a sheet of toilet paper does not stick to the grille
- The fan is noisy, rattling or has stopped
- The duct ends in the loft rather than outside
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 Marlow
Is the survey free in Marlow?
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 Marlow?
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 Marlow do you work in?
All of Buckinghamshire. Near Marlow that includes Maidenhead, High Wycombe, Burnham and Henley-on-Thames.
Book a Marlow visit and we will test the fan you have before recommending a new one.
Extractor fans near Marlow
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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.