Sunbury-on-Thames, Surrey
Positive input ventilation (PIV) in Sunbury-on-Thames
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Sunbury-on-Thames and KT12, TW16 and TW17.
- From £875 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Sunbury-on-Thames, after checking the house first.
Customers in Sunbury-on-Thames 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. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Sunbury-on-Thames at a glance
- Town
- Sunbury-on-Thames, Surrey
- Postcode districts
- KT12, TW16 and TW17
- Nearby
- Walton-on-Thames (1 mile), Shepperton (2 miles) and West Molesey (2 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
PIV for Sunbury-on-Thames homes
It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source. On survey we check the loft, the landing position and the existing fans, and we tell you if PIV is not the right answer.
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 Sunbury-on-Thames
| 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.
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
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 Sunbury-on-Thames
What area around Sunbury-on-Thames do you work in?
All of Surrey. Near Sunbury-on-Thames that includes Walton-on-Thames, Shepperton, West Molesey and Hampton.
Will PIV make my house cold?
Most units temper or reduce the flow when the incoming air is cold, and a heated unit warms it. Placed correctly on the landing, the air spreads gently rather than blowing on anyone.
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.
Do you cover Sunbury-on-Thames and nearby?
Yes. We cover Sunbury-on-Thames and nearby places including Walton-on-Thames, Shepperton, West Molesey and Hampton. Send your postcode and we will confirm.
What is the price of a PIV unit in Sunbury-on-Thames?
Guide prices for Sunbury-on-Thames use South East rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £875 to £1,525 inc VAT per home. We confirm a fixed price in writing before any work starts.
Get a PIV guide price for your Sunbury-on-Thames home online, then confirm it on a free survey.
PIV near Sunbury-on-Thames
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