South Ruislip, Greater London
Positive input ventilation (PIV) in South Ruislip
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering South Ruislip and HA4, UB5 and UB10.
- From £950 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across South Ruislip, after checking the house first.
Work in South Ruislip follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in South Ruislip at a glance
- Town
- South Ruislip, Greater London
- Postcode districts
- HA4, UB5 and UB10
- Nearby
- Ruislip Manor (1 mile), Ruislip (1 mile) and Ickenham (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for South Ruislip homes
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 South Ruislip
| 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
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
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 South Ruislip
How do I get a price for a PIV unit in South Ruislip?
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.
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.
What area around South Ruislip do you work in?
All of Greater London. Near South Ruislip that includes Ruislip Manor, Ruislip, Ickenham and Northolt.
Do you cover South Ruislip and nearby?
Yes. We cover South Ruislip and nearby places including Ruislip Manor, Ruislip, Ickenham and Northolt. Send your postcode and we will confirm.
Book a free South Ruislip survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near South Ruislip
More services in South Ruislip
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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.