Corsham, Wiltshire
Extractor fan installation in Corsham
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Corsham and SN12, SN13 and SN14.
- From £180 inc VAT per fan
- Free survey
A common fault in Corsham homes is a bathroom fan ducted into the loft instead of outside.
Corsham is about 78 miles from our base in Great Barr, Birmingham. We book Corsham visits by appointment and confirm the date in writing. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Extractor fans in Corsham at a glance
- Town
- Corsham, Wiltshire
- Postcode districts
- SN12, SN13 and SN14
- Nearby
- Neston (2 miles), Chippenham (3 miles) and Melksham (5 miles)
- Price region
- South West
- 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.
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 Corsham
| Work | Guide price |
|---|---|
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £180–£305 inc VAT |
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £360–£575 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £465–£775 inc VAT |
These ranges use our South West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- The duct ends in the loft rather than outside
- A kitchen with a recirculating hood and condensation on the windows
- Mirror still steamed up 20 minutes after a shower
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 Corsham
What is the price of new extractor fans in Corsham?
Guide prices for Corsham use South West rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £180 to £305 inc VAT per fan. We confirm a fixed price in writing before any work starts.
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.
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.
Is the survey free in Corsham?
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 Corsham?
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.
We can usually fit a replacement fan in Corsham in a single short visit.
Extractor fans near Corsham
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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.