- Postcode districts
- TR1
- Nearby
- Falmouth, Redruth and Newquay
- Guide price
- £255–£600
- Typical time on site
- half a day
- Water
- Soft across most of Cornwall
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Truro?
Our guide price for a bathroom extractor fan in Truro is £255–£600 including VAT. 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 Truro including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Truro
In Truro we cover TR1; we also cover Falmouth, 7.7 miles away, and Redruth.
Truro gets the same process as anywhere else: a free survey at your home and a written, itemised quote. In Truro flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey. If your Truro 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.
Supplies across most of Cornwall are soft. Even so, condensation is the bigger problem in any bathroom, and a properly sized extractor is what deals with it. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- Making good around the fan and checking that it extracts properly at the grille
- Run-on timer, humidistat or light-linked switching set up to suit how the room is used
- Rigid or semi-rigid ducting kept short and straight, and insulated where it crosses a cold loft
- Wiring by a qualified electrician, with an isolator outside the room and RCD protection
Decisions to make first
Intermittent or continuous
An intermittent fan runs during and after use. A continuous fan runs quietly all the time at a low rate and boosts when humidity rises.
Timer or humidistat
A timer keeps the fan running after the light goes off. A humidistat starts it whenever moisture rises, which suits rooms where people forget.
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.
