Waterlooville, Hampshire
Positive input ventilation (PIV) in Waterlooville
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Waterlooville and PO7, PO8 and PO9.
- From £875 inc VAT per home
- Free survey
PIV is often a good fix for Waterlooville homes with condensation on every window.
For positive input ventilation (PIV) in Waterlooville, 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 Waterlooville at a glance
- Town
- Waterlooville, Hampshire
- Postcode districts
- PO7, PO8 and PO9
- Nearby
- Havant (3 miles), Cosham (3 miles) and Emsworth (5 miles)
- Price region
- South East
- 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.
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 Waterlooville
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £875–£1,525 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,100–£1,875 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £160–£325 inc VAT |
South East rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- 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 Waterlooville
How do I get a price for a PIV unit in Waterlooville?
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 Waterlooville do you work in?
All of Hampshire. Near Waterlooville that includes Havant, Cosham, Emsworth and Portsmouth.
Do you cover Waterlooville and nearby?
Yes. We cover Waterlooville and nearby places including Havant, Cosham, Emsworth and Portsmouth. Send your postcode and we will confirm.
Book a free Waterlooville survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Waterlooville
More services in Waterlooville
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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.