Acton, Greater London
Positive input ventilation (PIV) in Acton
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Acton and W3, W4 and W5.
- From £950 inc VAT per home
- Free survey
For a typical Acton semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
We cover Acton and the surrounding W3, W4 and W5 postcodes as part of our work across Greater London. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Acton at a glance
- Town
- Acton, Greater London
- Postcode districts
- W3, W4 and W5
- Nearby
- Ealing Common (1 mile), Chiswick (1 mile) and Kew (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Acton 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 Acton
| 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 |
These ranges use our London rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Acton
Is the survey free in Acton?
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.
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.
How do I get a price for a PIV unit in Acton?
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 Acton do you work in?
All of Greater London. Near Acton that includes Ealing Common, Chiswick, Kew and West Ealing.
Book a free Acton survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Acton
More services in Acton
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.