Queen's Park, Greater London
Positive input ventilation (PIV) in Queen's Park
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Queen's Park and NW6, W9 and W10.
- From £950 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Queen's Park, after checking the house first.
For positive input ventilation (PIV) in Queen's Park, send us the postcode, a few photos and a rough idea of the rooms involved. We will tell you what we would fit and roughly what it costs before arranging a visit.
PIV in Queen's Park at a glance
- Town
- Queen's Park, Greater London
- Postcode districts
- NW6, W9 and W10
- Nearby
- Harrow Road (under a mile), Kensal Green (1 mile) and Maida Hill (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Queen's Park
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.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
Guide prices in Queen's 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 |
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
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
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). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.
Questions from Queen's Park
Is the survey free in Queen's Park?
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 much does PIV cost to run?
A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.
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.
How do I get a price for a PIV unit in Queen's Park?
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.
What area around Queen's Park do you work in?
All of Greater London. Near Queen's Park that includes Harrow Road, Kensal Green, Maida Hill and Westbourne.
We will check the existing fans in your Queen's Park home at the same visit, because PIV works best with them working.
PIV near Queen's Park
More services in Queen's 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.