West End of London, Greater London
Positive input ventilation (PIV) in West End of London
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering West End of London and W1C, W1H and W1U.
- From £950 inc VAT per home
- Free survey
Condensation in West End of London homes usually has one of two answers: better extract fans, or PIV as well.
Whether the property is in the middle of West End of London 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 West End of London at a glance
- Town
- West End of London, Greater London
- Postcode districts
- W1C, W1H and W1U
- Nearby
- West End (under a mile), Hyde Park (1 mile) and St James's (1 mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
PIV for West End of London homes
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.
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 West End of London
| 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.
When to get it looked at
- 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 West End of London
How do I get a price for a PIV unit in West End of London?
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 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.
What area around West End of London do you work in?
All of Greater London. Near West End of London that includes West End, Hyde Park, St James's and Knightsbridge and Belgravia.
Do you cover West End of London and nearby?
Yes. We cover West End of London and nearby places including West End, Hyde Park, St James's and Knightsbridge and Belgravia. Send your postcode and we will confirm.
Send a photo of your loft hatch area and landing ceiling for a quicker West End of London quote.
PIV near West End of London
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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.