Highams Park, Greater London
Positive input ventilation (PIV) in Highams Park
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Highams Park and E4, E17 and IG8.
- From £950 inc VAT per home
- Free survey

If your Highams Park flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
Customers in Highams Park can get a guide price online in a couple of minutes. It uses London rates, which is what we would charge for the same job anywhere in Greater London. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Highams Park at a glance
- Town
- Highams Park, Greater London
- Postcode districts
- E4, E17 and IG8
- Nearby
- Woodford Green (1 mile), Walthamstow (1 mile) and Monkhams (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Highams Park 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.
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 Highams Park
| 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 |
London rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- 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
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 Highams Park
What area around Highams Park do you work in?
All of Greater London. Near Highams Park that includes Woodford Green, Walthamstow, Monkhams and Chingford.
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.
Do you cover Highams Park and nearby?
Yes. We cover Highams Park and nearby places including Woodford Green, Walthamstow, Monkhams and Chingford. Send your postcode and we will confirm.
What is the price of a PIV unit in Highams Park?
Guide prices for Highams Park 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.
Most Highams Park PIV jobs are done in half a day, so ask about the next available date.
PIV near Highams Park
More services in Highams Park
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.