Church Street, Greater London
Positive input ventilation (PIV) in Church Street
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Church Street and NW8, W1H and W2.
- From £950 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Church Street, after checking the house first.
Work in Church Street follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Church Street at a glance
- Town
- Church Street, Greater London
- Postcode districts
- NW8, W1H and W2
- Nearby
- Marylebone (under a mile), Little Venice (under a mile) and Regent's Park (under a mile)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach PIV in Church Street
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 Church Street
| 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.
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 Church Street
How do I get a price for a PIV unit in Church Street?
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 Church Street do you work in?
All of Greater London. Near Church Street that includes Marylebone, Little Venice, Regent's Park and Hyde Park.
Do you cover Church Street and nearby?
Yes. We cover Church Street and nearby places including Marylebone, Little Venice, Regent's Park and Hyde Park. Send your postcode and we will confirm.
Send a photo of your loft hatch area and landing ceiling for a quicker Church Street quote.
PIV near Church Street
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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.