Barking, Greater London
Positive input ventilation (PIV) in Barking
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Barking and IG11, RM6, RM8 and RM9.
- From £950 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Barking, after checking the house first.
Work in Barking follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Barking at a glance
- Town
- Barking, Greater London
- Postcode districts
- IG11, RM6, RM8, RM9 and RM10
- Nearby
- Ilford (2 miles), Manor Park (2 miles) and Goodmayes (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Barking homes
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.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Barking
| 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 Barking
How do I get a price for a PIV unit in Barking?
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 Barking do you work in?
All of Greater London. Near Barking that includes Ilford, Manor Park, Goodmayes and Becontree.
Do you cover Barking and nearby?
Yes. We cover Barking and nearby places including Ilford, Manor Park, Goodmayes and Becontree. Send your postcode and we will confirm.
We will check the existing fans in your Barking home at the same visit, because PIV works best with them working.
PIV near Barking
More services in Barking
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.