- Postcode districts
- WD1, WD17, WD18, WD24, WD25
- Nearby
- Bushey, North Watford and Rickmansworth
- 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 Watford?
In Watford, 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 Watford including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Watford
We work right across Watford — WD1, WD17, WD18 and 2 more postcode districts — and in neighbouring Bushey and North Watford.
Across a large town like Watford, homes range from older terraces to newer estates; the survey tells us which pipework and floor we are dealing with. If your Watford bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. If your Watford home is listed or in a period terrace, a fan ducted through the loft to a roof vent can avoid a new hole in the front wall, though consent may still apply.
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
- A check of the room, any existing fan or vent, and the shortest route to the outside
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
Decisions to make first
Noise
Compare the stated noise level in decibels. Inline fans and low-speed continuous fans are much quieter in the room than budget axial fans.
Replacement air
A fan needs air to replace what it removes, so leave a gap of around 10 mm under the door or fit a door grille. A sealed room starves the fan.
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.
