Irvine, Ayrshire
Positive input ventilation (PIV) in Irvine
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Irvine and KA11, KA12 and KA13.
- From £775 inc VAT per home
- Free survey

For a typical Irvine semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
For positive input ventilation (PIV) in Irvine, 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 Irvine at a glance
- Town
- Irvine, Ayrshire
- Postcode districts
- KA11, KA12 and KA13
- Nearby
- Kilwinning (3 miles), Saltcoats (5 miles) and Troon (5 miles)
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
How we approach PIV in Irvine
PIV works well in houses and flats with general condensation on windows and cold walls. It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source.
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 Irvine
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £775–£1,350 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £950–£1,625 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £140–£285 inc VAT |
These ranges use our Scotland rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
Rules that apply in Scotland
Scottish projects follow the Technical Handbooks (section 3, Environment) under the Building (Scotland) Regulations, usually with a building warrant. We work to the Scottish ventilation standards and record the airflow achieved.
Questions from Irvine
What area around Irvine do you work in?
All of Ayrshire. Near Irvine that includes Kilwinning, Saltcoats, Troon and Kilmarnock.
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.
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.
Do you cover Irvine and nearby?
Yes. We cover Irvine and nearby places including Kilwinning, Saltcoats, Troon and Kilmarnock. Send your postcode and we will confirm.
What is the price of a PIV unit in Irvine?
Guide prices for Irvine use Scotland rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £775 to £1,350 inc VAT per home. We confirm a fixed price in writing before any work starts.
Tell us whether your Irvine home has a loft and we can price a PIV unit before visiting.
PIV near Irvine
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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.