Kirkby, Merseyside
Positive input ventilation (PIV) in Kirkby
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Kirkby and L10, L32 and L33.
- From £750 inc VAT per home
- Free survey
We fit loft and wall-mounted PIV units across Kirkby, after checking the house first.
Whether the property is in the middle of Kirkby 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 Kirkby at a glance
- Town
- Kirkby, Merseyside
- Postcode districts
- L10, L32 and L33
- Nearby
- Fazakerley (2 miles), Croxteth (2 miles) and Norris Green (3 miles)
- Price region
- North West
- Survey
- Free survey (UK mainland)
What the work involves
Many units have a temperature sensor that reduces the flow or switches to a heater module on cold days, so the incoming air does not feel like a draught. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Guide prices in Kirkby
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £750–£1,325 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £950–£1,600 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£280 inc VAT |
North West rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Common reasons people call
- 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
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 Kirkby
How do I get a price for a PIV unit in Kirkby?
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 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.
Does PIV really stop condensation?
PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.
What area around Kirkby do you work in?
All of Merseyside. Near Kirkby that includes Fazakerley, Croxteth, Norris Green and Maghull.
Do you cover Kirkby and nearby?
Yes. We cover Kirkby and nearby places including Fazakerley, Croxteth, Norris Green and Maghull. Send your postcode and we will confirm.
Send a photo of your loft hatch area and landing ceiling for a quicker Kirkby quote.
PIV near Kirkby
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