Beckenham, Greater London
Positive input ventilation (PIV) in Beckenham
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Beckenham and BR3, SE20 and SE26.
- From £950 inc VAT per home
- Free survey
PIV can suit Beckenham houses and flats because it treats the whole home from one quiet unit.
We cover Beckenham and the surrounding BR3, SE20 and SE26 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 Beckenham at a glance
- Town
- Beckenham, Greater London
- Postcode districts
- BR3, SE20 and SE26
- Nearby
- Perry Vale (2 miles), South Norwood (2 miles) and Shirley (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Beckenham
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.
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 Beckenham
| 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
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
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 Beckenham
Is the survey free in Beckenham?
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 Beckenham?
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 Beckenham do you work in?
All of Greater London. Near Beckenham that includes Perry Vale, South Norwood, Shirley and Crystal Palace.
Get a PIV guide price for your Beckenham home online, then confirm it on a free survey.
PIV near Beckenham
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