Christchurch, Dorset
Positive input ventilation (PIV) in Christchurch
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Christchurch and BH6, BH7 and BH23.
- From £825 inc VAT per home
- Free survey
PIV can suit Christchurch houses and flats because it treats the whole home from one quiet unit.
Customers in Christchurch 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 Christchurch at a glance
- Town
- Christchurch, Dorset
- Postcode districts
- BH6, BH7 and BH23
- Nearby
- Bournemouth (4 miles), New Milton (5 miles) and Ferndown (7 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach PIV in Christchurch
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. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Christchurch
| 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
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Christchurch
How do I get a price for a PIV unit in Christchurch?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
Can PIV be fitted in a flat?
Yes. Flats without loft space use a wall-mounted PIV unit that draws air from outside through an outside wall.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
What area around Christchurch do you work in?
All of Dorset. Near Christchurch that includes Bournemouth, New Milton, Ferndown and Ringwood.
Do you cover Christchurch and nearby?
Yes. We cover Christchurch and nearby places including Bournemouth, New Milton, Ferndown and Ringwood. Send your postcode and we will confirm.
Book a free Christchurch survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Christchurch
More services in Christchurch
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.