Snaresbrook, Greater London
Positive input ventilation (PIV) in Snaresbrook
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Snaresbrook and E11, E17 and E18.
- From £950 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Snaresbrook, after checking the house first.
Whether the property is in the middle of Snaresbrook 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 Snaresbrook at a glance
- Town
- Snaresbrook, Greater London
- Postcode districts
- E11, E17 and E18
- Nearby
- Wanstead (1 mile), Leytonstone (1 mile) and Woodford Green (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Snaresbrook homes
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 Snaresbrook
| 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 |
Guide prices using London rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Common reasons people call
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
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 Snaresbrook
Do you cover Snaresbrook and nearby?
Yes. We cover Snaresbrook and nearby places including Wanstead, Leytonstone, Woodford Green and Walthamstow. Send your postcode and we will confirm.
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.
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.
What is the price of a PIV unit in Snaresbrook?
Guide prices for Snaresbrook 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.
Is the survey free in Snaresbrook?
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.
Send a photo of your loft hatch area and landing ceiling for a quicker Snaresbrook quote.
PIV near Snaresbrook
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