Sutton, Greater London
Positive input ventilation (PIV) in Sutton
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Sutton and KT4, SM1, SM2 and SM3.
- From £950 inc VAT per home
- Free survey
If your Sutton flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Whether the property is in the middle of Sutton 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 Sutton at a glance
- Town
- Sutton, Greater London
- Postcode districts
- KT4, SM1, SM2, SM3 and SM5
- Nearby
- Belmont (under a mile), Cheam (1 mile) and Carshalton (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Sutton
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls.
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 Sutton
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £950–£1,675 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,200–£2,025 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £175–£355 inc VAT |
London 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
- 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. 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 Sutton
What area around Sutton do you work in?
All of Greater London. Near Sutton that includes Belmont, Cheam, Carshalton and Banstead.
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 Sutton and nearby?
Yes. We cover Sutton and nearby places including Belmont, Cheam, Carshalton and Banstead. Send your postcode and we will confirm.
What is the price of a PIV unit in Sutton?
Guide prices for Sutton use London rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £950 to £1,675 inc VAT per home. We confirm a fixed price in writing before any work starts.
Send a photo of your loft hatch area and landing ceiling for a quicker Sutton quote.
PIV near Sutton
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