Home ventilation, Merseyside
Extractor fan installation in Merseyside
Bathroom, kitchen and utility fans sized to the Part F rates, ducted outside and tested, across Merseyside.
- From £165 inc VAT per fan
- Free survey

A common fault in Merseyside homes is a bathroom fan ducted into the loft instead of outside.
Across Merseyside the job is priced the same way wherever you are: what is fitted, how long it takes and how far we travel. Towns we cover include Southport, Wallasey, Bootle, Bebington and Huyton.
Extractor fans in Merseyside at a glance
- Area
- Merseyside
- Towns listed
- 38, largest Liverpool
- Postcode districts
- CH42, WA9, WA10, L22, L30 and CH44
- Price region
- North West
- 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.
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.
Inline fans
A quiet fan in the loft serving one or two ceiling grilles in a shower room or en-suite.
Guide prices in Merseyside
| Work | Guide price |
|---|---|
| Like-for-like extractor fan replacement (existing duct and wiring) (per fan) | £165–£280 inc VAT |
| New extractor fan through an outside wall (core drilled, wired, tested) (per fan) | £330–£525 inc VAT |
| New ducted fan to outside through the loft or ceiling (insulated duct, roof or soffit outlet) (per fan) | £425–£700 inc VAT |
| Inline fan for a shower room or en-suite (loft-mounted, one or two ceiling grilles) (per room) | £525–£850 inc VAT |
| Kitchen extract fan, or cooker hood ducted to outside (per kitchen) | £375–£650 inc VAT |
These ranges use our North West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- 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. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
How the job runs
- Quick survey
- Choose the fan
- Fit and duct
- Wire
- Test
Towns we cover in Merseyside
- Liverpool
- Birkenhead
- St Helens
- Southport
- Wallasey
- Bootle
- Bebington
- Huyton
- Kirkby
- Prescot
- Thornton-Cleveleys
- Heswall
- Maghull
- Newton-le-Willows
- Formby
- Litherland
- Norris Green
- Kirkdale
- Moreton
- Haydock
- Kensington
- Fazakerley
- Hunts Cross
- Belle Vale
- Old Swan
- Allerton
- Bromborough
- Croxteth
- Prenton
- Knotty Ash
- Wavertree
- West Derby
- Childwall
- Whiston
- Dingle
- Woolton
- Mossley Hill
- Rainhill
Questions about extractor fan installation in Merseyside
Which rules apply to ventilation in Merseyside?
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.
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.
Do you need building regulations for a new extractor fan?
Fitting or replacing an extractor fan has to meet the ventilation and electrical rules, and certain electrical work is notifiable. We do the work to the current standards. Electrical work that is notifiable is certified by a registered electrician, and you get a copy of the certificate and our airflow readings.
Which towns in Merseyside do you cover?
All of Merseyside, including Southport, Wallasey, Bootle, Bebington and Huyton. If your town is not listed, send the postcode and we will confirm.
Are prices different in Merseyside?
Our guide prices are adjusted by region. In Merseyside we use North West rates, so like-for-like extractor fan replacement (existing duct and wiring) is typically £165 to £280 inc VAT per fan.
Tell us how many rooms need fans in your Merseyside home and we will quote them together.
Other services in Merseyside
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