Home ventilation, Highland and Moray
Positive input ventilation (PIV) in Highland and Moray
Loft or wall units that gently push filtered air into the home to tackle condensation, across Highland and Moray.
- From £775 inc VAT per home
- Free survey
If your Highland and Moray flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.
We carry out positive input ventilation (PIV) across Highland and Moray, including Nairn, Inverness, Elgin and Fort William. Prices use Scotland rates. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
Jobs in the remote Highlands and on the islands are by arrangement, with travel quoted in writing before you commit.
PIV in Highland and Moray at a glance
- Area
- Highland and Moray, Scotland
- Towns listed
- 4, largest Inverness
- Postcode districts
- IV31, PH33, IV12, IV1, IV2 and IV30
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
What positive input ventilation (PIV) 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 works well in houses and flats with general condensation on windows and cold walls.
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.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Guide prices in Highland and Moray
| 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 |
Guide prices using Scotland rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
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 in Scotland
Scottish projects follow the Technical Handbooks (section 3, Environment) under the Building (Scotland) Regulations, usually with a building warrant. Extract and whole-home rates are designed to the Scottish standards and measured at handover.
How the job runs
- Survey
- Fixed quote
- Install
- Set up
- Hand over
Towns we cover in Highland and Moray
Questions about positive input ventilation (PIV) in Highland and Moray
Is the survey free in Highland and Moray?
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 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.
Which rules apply to ventilation in Highland and Moray?
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.
Which towns in Highland and Moray do you cover?
All of Highland and Moray, including Nairn, Inverness, Elgin and Fort William. If your town is not listed, send the postcode and we will confirm.
Most Highland and Moray PIV jobs are done in half a day, so ask about the next available date.
Other services in Highland and Moray
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.