Chalfont St Peter, Buckinghamshire
Extractor fan installation in Chalfont St Peter
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested. Covering Chalfont St Peter and HP8, SL9 and UB9.
- From £195 inc VAT per fan
- Free survey
A common fault in Chalfont St Peter homes is a bathroom fan ducted into the loft instead of outside.
For extractor fan installation in Chalfont St Peter, 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 Chalfont St Peter at a glance
- Town
- Chalfont St Peter, Buckinghamshire
- Postcode districts
- HP8, SL9 and UB9
- Nearby
- Gerrards Cross (2 miles), Chorleywood (4 miles) and Beaconsfield (4 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 Chalfont St Peter
| Work | Guide price |
|---|---|
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £380–£600 inc VAT |
| 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 |
South East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
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
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 Chalfont St Peter
What area around Chalfont St Peter do you work in?
All of Buckinghamshire. Near Chalfont St Peter that includes Gerrards Cross, Chorleywood, Beaconsfield and Rickmansworth.
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.
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.
Do you cover Chalfont St Peter and nearby?
Yes. We cover Chalfont St Peter and nearby places including Gerrards Cross, Chorleywood, Beaconsfield and Rickmansworth. Send your postcode and we will confirm.
What is the price of new extractor fans in Chalfont St Peter?
Guide prices for Chalfont St Peter use South East rates: like-for-like extractor fan replacement (existing duct and wiring) is typically £195 to £325 inc VAT per fan. We confirm a fixed price in writing before any work starts.
Tell us how many rooms need fans in your Chalfont St Peter home and we will quote them together.
Extractor fans near Chalfont St Peter
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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.