Farnborough, Hampshire
Positive input ventilation (PIV) in Farnborough
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Farnborough and GU14, GU16 and GU17.
- From £875 inc VAT per home
- Free survey
PIV can suit Farnborough houses and flats because it treats the whole home from one quiet unit.
We cover Farnborough and the surrounding GU14, GU16 and GU17 postcodes as part of our work across Hampshire. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Farnborough at a glance
- Town
- Farnborough, Hampshire
- Postcode districts
- GU14, GU16 and GU17
- Nearby
- Frimley (2 miles), Camberley (3 miles) and Aldershot (3 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.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Guide prices in Farnborough
| 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 |
These ranges use our South East rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
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 Farnborough
What is the price of a PIV unit in Farnborough?
Guide prices for Farnborough 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.
Can PIV be fitted in a flat?
Yes. Flats without loft space use a wall-mounted PIV unit that draws air from outside through an outside wall.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
Is the survey free in Farnborough?
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 Farnborough?
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.
Tell us whether your Farnborough home has a loft and we can price a PIV unit before visiting.
PIV near Farnborough
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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.