- Postcode districts
- CM1
- Nearby
- Billericay, Witham and Maldon
- Guide price
- £265–£650
- Typical time on site
- half a day
- Water
- Very hard across most of Essex
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Chelmsford?
Our guide price for a bathroom extractor fan in Chelmsford is £265–£650 including VAT. We adjust the national guide for East of England, where prices are typically about 6% above the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Extractor fan
- Fan with timer or humidistat
Inline fan
- Ducting to a roof or soffit vent
Continuous extract
- Good for windowless rooms
Guide prices for Chelmsford including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Chelmsford
We cover every part of Chelmsford, including CM1, and nearby Billericay (7.7 miles) and Witham (8.5 miles).
In a city the size of Chelmsford, parking and access for a skip are worth sorting before the start date — we will ask at the survey. In Chelmsford flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. If your Chelmsford bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check.
Most of Essex has very hard water. 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
- Making good around the fan and checking that it extracts properly at the grille
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
- A check of the room, any existing fan or vent, and the shortest route to the outside
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.
