- Postcode districts
- PO1, PO2, PO3, PO4, PO5, PO6
- Nearby
- Gosport, South Hayling and Fareham
- Guide price
- £280–£650
- Typical time on site
- half a day
- Water
- Hard across most of Hampshire
- Survey
- Free, at your home
What does a bathroom extractor fan cost in Portsmouth?
In Portsmouth, a bathroom extractor fan typically costs £280–£650 including VAT, based on South East England prices. Prices in South East England run at about 12% 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
- Fan with timer or humidistat
Inline fan
- Ducting to a roof or soffit vent
Continuous extract
- Good for windowless rooms
Guide prices for Portsmouth including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Portsmouth
As well as Portsmouth itself (PO1, PO2, PO3 and 3 more postcode districts), we survey in Gosport, South Hayling and Fareham.
Portsmouth 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 Portsmouth bathroom has black mould on the ceiling or silicone, the fan and its duct are the first things we check. In Portsmouth flats, a new vent through an outside wall may need freeholder consent, so we raise it at the survey.
Water across much of Hampshire is 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
- 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
- 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
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.
