Wimborne Minster, Dorset
Positive input ventilation (PIV) in Wimborne Minster
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Wimborne Minster and BH17, BH18 and BH21.
- From £825 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Wimborne Minster, after checking the house first.
Customers in Wimborne Minster can get a guide price online in a couple of minutes. It uses South West rates, which is what we would charge for the same job anywhere in Dorset. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Wimborne Minster at a glance
- Town
- Wimborne Minster, Dorset
- Postcode districts
- BH17, BH18 and BH21
- Nearby
- Broadstone (2 miles), Canford Heath (2 miles) and Ferndown (4 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach PIV in Wimborne Minster
Loft air is usually a little warmer and drier than outside air, and the unit filters it before it comes down into the house. Many units have a temperature sensor that reduces the flow or switches to a heater module on cold days, so the incoming air does not feel like a draught.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Wimborne Minster
| 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
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
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). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
Questions from Wimborne Minster
Do you cover Wimborne Minster and nearby?
Yes. We cover Wimborne Minster and nearby places including Broadstone, Canford Heath, Ferndown and Poole. Send your postcode and we will confirm.
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.
How much does PIV cost to run?
A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.
What is the price of a PIV unit in Wimborne Minster?
Guide prices for Wimborne Minster 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.
Is the survey free in Wimborne Minster?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
Get a PIV guide price for your Wimborne Minster home online, then confirm it on a free survey.
PIV near Wimborne Minster
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