Home ventilation, Fife
Positive input ventilation (PIV) in Fife
Loft or wall units that gently push filtered air into the home to tackle condensation, across Fife.
- From £775 inc VAT per home
- Free survey

For a typical Fife semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
We carry out positive input ventilation (PIV) across Fife, including Kirkcaldy, Glenrothes, St Andrews, Rosyth and Cowdenbeath. Prices use Scotland rates. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Fife at a glance
- Area
- Fife, Scotland
- Towns listed
- 7, largest Dunfermline
- Postcode districts
- KY6, KY16, EH30, KY11, KY4 and KY5
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
What the work involves
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. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
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 Fife
| 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
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
Rules 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.
How the job runs
- Survey
- Fixed quote
- Install
- Set up
- Hand over
Towns we cover in Fife
Questions about positive input ventilation (PIV) in Fife
Are prices different in Fife?
Our guide prices are adjusted by region. In Fife we use Scotland rates, so positive input ventilation (PIV) loft unit, supplied and fitted is typically £775 to £1,350 inc VAT per home.
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 Fife?
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.
Which rules apply to ventilation in Fife?
In Scotland, ventilation is covered by section 3 of the Building Standards Technical Handbooks. Private rented homes must meet the Repairing Standard, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
Send a photo of your loft hatch area and landing ceiling for a quicker Fife quote.
Other services in Fife
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