Wanstead, Greater London
Positive input ventilation (PIV) in Wanstead
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Wanstead and E11, E18 and IG4.
- From £950 inc VAT per home
- Free survey
Condensation in Wanstead homes usually has one of two answers: better extract fans, or PIV as well.
We cover Wanstead and the surrounding E11, E18 and IG4 postcodes as part of our work across Greater London. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Wanstead at a glance
- Town
- Wanstead, Greater London
- Postcode districts
- E11, E18 and IG4
- Nearby
- Snaresbrook (1 mile), Leytonstone (1 mile) and Leyton (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Wanstead 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.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Guide prices in Wanstead
| 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.
When to get it looked at
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
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 Wanstead
Is the survey free in Wanstead?
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 Wanstead?
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 Wanstead do you work in?
All of Greater London. Near Wanstead that includes Snaresbrook, Leytonstone, Leyton and Barkingside.
Most Wanstead PIV jobs are done in half a day, so ask about the next available date.
PIV near Wanstead
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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.