Archway, Greater London
Positive input ventilation (PIV) in Archway
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Archway and N6, N19 and NW5.
- From £950 inc VAT per home
- Free survey
PIV is often a good fix for Archway homes with condensation on every window.
Customers in Archway 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 Archway at a glance
- Town
- Archway, Greater London
- Postcode districts
- N6, N19 and NW5
- Nearby
- Crouch End (1 mile), Highgate (1 mile) and Holloway (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Archway
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.
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 Archway
| 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 |
Guide prices using London rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
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
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 Archway
What area around Archway do you work in?
All of Greater London. Near Archway that includes Crouch End, Highgate, Holloway and Stroud Green.
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.
Do you cover Archway and nearby?
Yes. We cover Archway and nearby places including Crouch End, Highgate, Holloway and Stroud Green. Send your postcode and we will confirm.
What is the price of a PIV unit in Archway?
Guide prices for Archway 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 Archway home has a loft and we can price a PIV unit before visiting.
PIV near Archway
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.