Belsize Park, Greater London
Positive input ventilation (PIV) in Belsize Park
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Belsize Park and NW3, NW6 and NW8.
- From £950 inc VAT per home
- Free survey
For a typical Belsize Park semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Whether the property is in the middle of Belsize Park or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.
PIV in Belsize Park at a glance
- Town
- Belsize Park, Greater London
- Postcode districts
- NW3, NW6 and NW8
- Nearby
- Kilburn (1 mile), Abbey Road (1 mile) and Chalk Farm (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Belsize Park
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 Belsize 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.
When to get it looked at
- 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 Belsize Park
What area around Belsize Park do you work in?
All of Greater London. Near Belsize Park that includes Kilburn, Abbey Road, Chalk Farm and Regent's Park.
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 Belsize Park and nearby?
Yes. We cover Belsize Park and nearby places including Kilburn, Abbey Road, Chalk Farm and Regent's Park. Send your postcode and we will confirm.
What is the price of a PIV unit in Belsize Park?
Guide prices for Belsize 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.
Get a PIV guide price for your Belsize Park home online, then confirm it on a free survey.
PIV near Belsize Park
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