South Hayling, Hampshire
Positive input ventilation (PIV) in South Hayling
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering South Hayling and PO3, PO4 and PO11.
- From £875 inc VAT per home
- Free survey

PIV is often a good fix for South Hayling homes with condensation on every window.
Whether the property is in the middle of South Hayling or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
PIV in South Hayling at a glance
- Town
- South Hayling, Hampshire
- Postcode districts
- PO3, PO4 and PO11
- Nearby
- Hayling Island (under a mile), Emsworth (4 miles) and Havant (5 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
PIV for South Hayling homes
PIV works well in houses and flats with general condensation on windows and cold walls. It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Guide prices in South Hayling
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,100–£1,875 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £160–£325 inc VAT |
These ranges use our South East rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
Signs it is time to call us
- 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
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 South Hayling
Is the survey free in South Hayling?
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.
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.
How do I get a price for a PIV unit in South Hayling?
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.
What area around South Hayling do you work in?
All of Hampshire. Near South Hayling that includes Hayling Island, Emsworth, Havant and Southsea.
Get a PIV guide price for your South Hayling home online, then confirm it on a free survey.
PIV near South Hayling
More services in South Hayling
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.