Wood Green, Greater London
Positive input ventilation (PIV) in Wood Green
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Wood Green and N8, N10 and N22.
- From £950 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Wood Green, after checking the house first.
Wood Green is about 101 miles from our base in Great Barr, Birmingham. We book Wood Green visits by appointment and confirm the date in writing. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Wood Green at a glance
- Town
- Wood Green, Greater London
- Postcode districts
- N8, N10 and N22
- Nearby
- Hornsey (1 mile), Palmers Green (1 mile) and Muswell Hill (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Wood Green homes
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls.
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 Wood Green
| 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.
Common reasons people call
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
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). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Wood Green
What area around Wood Green do you work in?
All of Greater London. Near Wood Green that includes Hornsey, Palmers Green, Muswell Hill and Southgate.
How much does PIV cost to install?
A loft-mounted PIV unit usually costs £795 to £1,395 including VAT supplied and fitted, and £995 to £1,695 for a wall-mounted unit in a flat. A heater module adds around £145 to £295.
Does PIV really stop condensation?
PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.
Do you cover Wood Green and nearby?
Yes. We cover Wood Green and nearby places including Hornsey, Palmers Green, Muswell Hill and Southgate. Send your postcode and we will confirm.
What is the price of a PIV unit in Wood Green?
Guide prices for Wood Green 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.
Tell us whether your Wood Green home has a loft and we can price a PIV unit before visiting.
PIV near Wood Green
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