Amesbury, Wiltshire
Positive input ventilation (PIV) in Amesbury
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Amesbury and SP4.
- From £825 inc VAT per home
- Free survey
PIV can suit Amesbury houses and flats because it treats the whole home from one quiet unit.
Amesbury is about 95 miles from our base in Great Barr, Birmingham. We book Amesbury visits by appointment and confirm the date in writing. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.
PIV in Amesbury at a glance
- Town
- Amesbury, Wiltshire
- Postcode districts
- SP4
- Nearby
- Tidworth (6 miles), Salisbury (7 miles) and Andover (13 miles)
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we approach PIV in Amesbury
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.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Amesbury
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £825–£1,450 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £1,025–£1,775 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £150–£305 inc VAT |
These ranges use our South West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
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
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. 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 Amesbury
What is the price of a PIV unit in Amesbury?
Guide prices for Amesbury use South West rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £825 to £1,450 inc VAT per home. We confirm a fixed price in writing before any work starts.
How much does PIV cost to run?
A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.
Will PIV make my house cold?
Most units temper or reduce the flow when the incoming air is cold, and a heated unit warms it. Placed correctly on the landing, the air spreads gently rather than blowing on anyone.
Is the survey free in Amesbury?
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 Amesbury?
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.
Send a photo of your loft hatch area and landing ceiling for a quicker Amesbury quote.
PIV near Amesbury
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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.