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

Condensation in Edinburgh homes usually has one of two answers: better extract fans, or PIV as well.
Edinburgh has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.
PIV in Edinburgh at a glance
- Area
- Edinburgh, Scotland
- Towns listed
- 1, largest Edinburgh
- Postcode districts
- EH1 and EH2
- Price region
- Scotland
- 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 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.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Guide prices in Edinburgh
| 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.
Signs it is time to call us
- 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 in Scotland
In Scotland, ventilation is covered by the Building (Scotland) Regulations and section 3 of the Technical Handbooks, and most building work needs a building warrant first. 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 Edinburgh
Questions about positive input ventilation (PIV) in Edinburgh
Are prices different in Edinburgh?
Our guide prices are adjusted by region. In Edinburgh 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 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.
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.
Is the survey free in Edinburgh?
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 Edinburgh?
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 Edinburgh quote.
Other services in Edinburgh
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