Shadwell, Greater London
Positive input ventilation (PIV) in Shadwell
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Shadwell and E1, E1W and EC3N.
- From £950 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Shadwell, after checking the house first.
We cover Shadwell and the surrounding E1, E1W and EC3N 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 Shadwell at a glance
- Town
- Shadwell, Greater London
- Postcode districts
- E1, E1W and EC3N
- Nearby
- Whitechapel (under a mile), Stepney (1 mile) and Rotherhithe (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
What the work involves
PIV works well in houses and flats with general condensation on windows and cold walls. It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source.
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 Shadwell
| 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). 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 Shadwell
How do I get a price for a PIV unit in Shadwell?
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.
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.
What area around Shadwell do you work in?
All of Greater London. Near Shadwell that includes Whitechapel, Stepney, Rotherhithe and Spitalfields.
Do you cover Shadwell and nearby?
Yes. We cover Shadwell and nearby places including Whitechapel, Stepney, Rotherhithe and Spitalfields. Send your postcode and we will confirm.
Get a PIV guide price for your Shadwell home online, then confirm it on a free survey.
PIV near Shadwell
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