Goodmayes, Greater London
Positive input ventilation (PIV) in Goodmayes
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Goodmayes and IG3, RM6 and RM8.
- From £950 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Goodmayes, after checking the house first.
We cover Goodmayes and the surrounding IG3, RM6 and RM8 postcodes as part of our work across Greater London. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Goodmayes at a glance
- Town
- Goodmayes, Greater London
- Postcode districts
- IG3, RM6 and RM8
- Nearby
- Becontree (1 mile), Ilford (2 miles) and Barkingside (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Goodmayes
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 Goodmayes
| 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
- 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 Goodmayes
Do you cover Goodmayes and nearby?
Yes. We cover Goodmayes and nearby places including Becontree, Ilford, Barkingside and Barking. Send your postcode and we will confirm.
How much does PIV cost to install?
A loft-mounted PIV unit usually costs £795 to £1,395 including VAT supplied and fitted, and £995 to £1,695 for a wall-mounted unit in a flat. A heater module adds around £145 to £295.
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.
What is the price of a PIV unit in Goodmayes?
Guide prices for Goodmayes 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 Goodmayes?
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.
Book a free Goodmayes survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Goodmayes
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