Canford Heath, Dorset
Positive input ventilation (PIV) in Canford Heath
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Canford Heath and BH12, BH17 and BH18.
- From £825 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Canford Heath, after checking the house first.
For positive input ventilation (PIV) in Canford Heath, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
PIV in Canford Heath at a glance
- Town
- Canford Heath, Dorset
- Postcode districts
- BH12, BH17 and BH18
- Nearby
- Broadstone (1 mile), Wimborne Minster (2 miles) and Poole (3 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
PIV for Canford Heath homes
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Guide prices in Canford Heath
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,450 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,025–£1,775 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £150–£305 inc VAT |
These ranges use our South West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Common reasons people call
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
Rules that apply in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Canford Heath
What area around Canford Heath do you work in?
All of Dorset. Near Canford Heath that includes Broadstone, Wimborne Minster, Poole and Bournemouth.
How much does PIV cost to install?
A loft-mounted PIV unit usually costs £795 to £1,395 including VAT supplied and fitted, and £995 to £1,695 for a wall-mounted unit in a flat. A heater module adds around £145 to £295.
Does PIV really stop condensation?
PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.
Do you cover Canford Heath and nearby?
Yes. We cover Canford Heath and nearby places including Broadstone, Wimborne Minster, Poole and Bournemouth. Send your postcode and we will confirm.
What is the price of a PIV unit in Canford Heath?
Guide prices for Canford Heath use South West rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £825 to £1,450 inc VAT per home. We confirm a fixed price in writing before any work starts.
Get a PIV guide price for your Canford Heath home online, then confirm it on a free survey.
PIV near Canford Heath
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