Shepperton, Surrey
Positive input ventilation (PIV) in Shepperton
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Shepperton and KT13, TW16 and TW17.
- From £875 inc VAT per home
- Free survey
PIV is often a good fix for Shepperton homes with condensation on every window.
Customers in Shepperton can get a guide price online in a couple of minutes. It uses South East rates, which is what we would charge for the same job anywhere in Surrey. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Shepperton at a glance
- Town
- Shepperton, Surrey
- Postcode districts
- KT13, TW16 and TW17
- Nearby
- Sunbury-on-Thames (2 miles), Walton-on-Thames (2 miles) and Weybridge (2 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach PIV in Shepperton
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.
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 Shepperton
| 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 |
South East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
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 Shepperton
How do I get a price for a PIV unit in Shepperton?
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.
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 area around Shepperton do you work in?
All of Surrey. Near Shepperton that includes Sunbury-on-Thames, Walton-on-Thames, Weybridge and Ashford.
Do you cover Shepperton and nearby?
Yes. We cover Shepperton and nearby places including Sunbury-on-Thames, Walton-on-Thames, Weybridge and Ashford. Send your postcode and we will confirm.
Get a PIV guide price for your Shepperton home online, then confirm it on a free survey.
PIV near Shepperton
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