Blackwall, Greater London
Positive input ventilation (PIV) in Blackwall
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Blackwall and E3, E14 and E16.
- From £950 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Blackwall, after checking the house first.
Work in Blackwall follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Blackwall at a glance
- Town
- Blackwall, Greater London
- Postcode districts
- E3, E14 and E16
- Nearby
- Canary Wharf (1 mile), Canning Town (1 mile) and Bow (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
What the work involves
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. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Blackwall
| 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 Blackwall
Is the survey free in Blackwall?
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.
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.
How do I get a price for a PIV unit in Blackwall?
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 Blackwall do you work in?
All of Greater London. Near Blackwall that includes Canary Wharf, Canning Town, Bow and Limehouse.
Most Blackwall PIV jobs are done in half a day, so ask about the next available date.
PIV near Blackwall
More services in Blackwall
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.