West Ealing, Greater London
Positive input ventilation (PIV) in West Ealing
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering West Ealing and W5, W7 and W13.
- From £950 inc VAT per home
- Free survey

For a typical West Ealing semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
West Ealing is about 99 miles from our base in Great Barr, Birmingham. We book West Ealing visits by appointment and confirm the date in writing. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in West Ealing at a glance
- Town
- West Ealing, Greater London
- Postcode districts
- W5, W7 and W13
- Nearby
- Ealing Common (1 mile), Greenford (2 miles) and Brentford (2 miles)
- 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 West Ealing
| 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 West Ealing
Do you cover West Ealing and nearby?
Yes. We cover West Ealing and nearby places including Ealing Common, Greenford, Brentford and Acton. Send your postcode and we will confirm.
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 long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
What is the price of a PIV unit in West Ealing?
Guide prices for West Ealing use London rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £950 to £1,675 inc VAT per home. We confirm a fixed price in writing before any work starts.
Is the survey free in West Ealing?
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.
Send a photo of your loft hatch area and landing ceiling for a quicker West Ealing quote.
PIV near West Ealing
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