Home ventilation, Cambridgeshire
Extractor fan installation in Cambridgeshire
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested, across Cambridgeshire.
- From £185 inc VAT per fan
- Free survey
A common fault in Cambridgeshire homes is a bathroom fan ducted into the loft instead of outside.
If you are anywhere in Cambridgeshire, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Cambridge, Wisbech, St Neots, Huntingdon and March.
Extractor fans in Cambridgeshire at a glance
- Area
- Cambridgeshire
- Towns listed
- 10, largest Peterborough
- Postcode districts
- PE1, PE2, CB1, CB2, PE13 and PE14
- Price region
- East of England
- Survey
- Free survey (UK mainland)
What the work involves
Many existing fans were never doing their job: undersized, ducted into the loft space, fitted with a flex duct crushed in the joists, or switched off by occupants because they were noisy. 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.
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 Cambridgeshire
| Work | Guide price |
|---|---|
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £185–£310 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 |
| Inline fan for a shower room or en-suite (loft-mounted, one or two ceiling grilles) (per room) | £575–£950 inc VAT |
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £415–£725 inc VAT |
These ranges use our East of England rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- Mould on the bathroom ceiling or around the window
- The fan runs but a sheet of toilet paper does not stick to the grille
- The fan is noisy, rattling or has stopped
Rules 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.
How the job runs
- Quick survey
- Choose the fan
- Fit and duct
- Wire
- Test
Towns we cover in Cambridgeshire
Questions about extractor fan installation in Cambridgeshire
Are prices different in Cambridgeshire?
Our guide prices are adjusted by region. In Cambridgeshire we use East of England rates, so like-for-like extractor fan replacement (existing duct and wiring) is typically £185 to £310 inc VAT per fan.
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.
Is the survey free in Cambridgeshire?
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.
Which rules apply to ventilation in Cambridgeshire?
In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Ask about humidity-controlled fans for your Cambridgeshire bathroom, so it clears itself without anyone remembering.
Other services in Cambridgeshire
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.