Tottenham Hale, Greater London
Positive input ventilation (PIV) in Tottenham Hale
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Tottenham Hale and N15, N17 and N18.
- From £950 inc VAT per home
- Free survey

PIV can suit Tottenham Hale houses and flats because it treats the whole home from one quiet unit.
Tottenham Hale is about 103 miles from our base in Great Barr, Birmingham. We book Tottenham Hale 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 Tottenham Hale at a glance
- Town
- Tottenham Hale, Greater London
- Postcode districts
- N15, N17 and N18
- Nearby
- Northumberland Park (1 mile), Tottenham (1 mile) and Seven Sisters (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for Tottenham Hale homes
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. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Tottenham Hale
| 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.
Common reasons people call
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
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 Tottenham Hale
What is the price of a PIV unit in Tottenham Hale?
Guide prices for Tottenham Hale 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.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
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.
Is the survey free in Tottenham Hale?
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.
How do I get a price for a PIV unit in Tottenham Hale?
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.
Get a PIV guide price for your Tottenham Hale home online, then confirm it on a free survey.
PIV near Tottenham Hale
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