Bishopstoke, Hampshire
Positive input ventilation (PIV) in Bishopstoke
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Bishopstoke and SO18, SO50 and SO53.
- From £875 inc VAT per home
- Free survey
PIV can suit Bishopstoke houses and flats because it treats the whole home from one quiet unit.
Work in Bishopstoke follows the rules for England and finishes with a written record of what was fitted and how it was set up.
PIV in Bishopstoke at a glance
- Town
- Bishopstoke, Hampshire
- Postcode districts
- SO18, SO50 and SO53
- Nearby
- Eastleigh (1 mile), Fair Oak (1 mile) and Portswood (4 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach PIV in Bishopstoke
Loft air is usually a little warmer and drier than outside air, and the unit filters it before it comes down into the house. 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.
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 Bishopstoke
| 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.
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
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.
Questions from Bishopstoke
What is the price of a PIV unit in Bishopstoke?
Guide prices for Bishopstoke use South East rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £875 to £1,525 inc VAT per home. We confirm a fixed price in writing before any work starts.
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.
Is the survey free in Bishopstoke?
For new installations on the UK mainland, yes. The survey is free and the quote that follows is fixed and in writing. Servicing, testing and repair visits are charged, and we confirm the cost before booking.
How do I get a price for a PIV unit in Bishopstoke?
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.
Most Bishopstoke PIV jobs are done in half a day, so ask about the next available date.
PIV near Bishopstoke
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