- Postcode districts
- AL1, AL2
- Nearby
- Harpenden, Hatfield and Hemel Hempstead
- Guide price
- £265–£650
- Typical time on site
- half a day
- Water
- Very hard across most of Hertfordshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in St Albans?
In St Albans, a bathroom extractor fan typically costs £265–£650 including VAT, based on East of England prices. Prices in East of England run at about 6% above the national guide, mainly because of labour rates. The figure depends on the size of the room, whether anything moves, and the products you pick.
Extractor fan
- Wired to regulations
Inline fan
- Quiet fan in the loft void
Continuous extract
- Boost on humidity
Guide prices for St Albans including VAT. Your itemised written quote after the free survey is the price that counts.
Working in St Albans
In St Albans we cover AL1 and AL2; we also cover Harpenden, 4.7 miles away, and Hatfield.
St Albans is a big place with every kind of home, from terraces to flats to new builds, so we never price from a photo alone. If your St Albans bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. For windowless bathrooms in St Albans homes, continuous extract that boosts on humidity often works better than a fan tied to the light switch.
Water across much of Hertfordshire is very hard. Steam carries that scale onto mirrors and glass, so a fan that clears the room quickly helps on both counts. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- A backdraught shutter and external grille, so cold air does not blow back in
- Core-drilling through the wall, or ducting through the loft to a roof or soffit vent
- A check of the room, any existing fan or vent, and the shortest route to the outside
- A fan chosen to meet the bathroom extract rate: 15 l/s intermittent or 8 l/s continuous
Decisions to make first
Wall or ceiling
A wall fan on an outside wall is the simplest. A ceiling fan over the shower takes steam away at source but needs ducting through the loft.
Axial, centrifugal or inline
Axial fans suit short, straight runs; centrifugal fans cope better with longer ducts; inline fans sit in the loft and are the quietest in the room.
Rules that apply in England
In England, Approved Document F sets bathroom extract at 15 l/s for an intermittent fan or 8 l/s for continuous extract. Wiring a new fan alters a circuit in a room with a bath or shower, so it is notifiable under Part P.
