Stirling, Forth Valley
Positive input ventilation (PIV) in Stirling
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Stirling and FK7, FK9 and FK11.
- From £775 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Stirling, after checking the house first.
Work in Stirling follows the rules for Scotland and finishes with a written record of what was fitted and how it was set up.
PIV in Stirling at a glance
- Town
- Stirling, Forth Valley
- Postcode districts
- FK7, FK9 and FK11
- Nearby
- Alloa (6 miles), Falkirk (10 miles) and Grangemouth (11 miles)
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
How we approach PIV in Stirling
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.
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 Stirling
| 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
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
Rules that apply 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. Extract and whole-home rates are designed to the Scottish standards and measured at handover.
Questions from Stirling
Is the survey free in Stirling?
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.
Can PIV be fitted in a flat?
Yes. Flats without loft space use a wall-mounted PIV unit that draws air from outside through an outside wall.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
How do I get a price for a PIV unit in Stirling?
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.
What area around Stirling do you work in?
All of the Forth Valley. Near Stirling that includes Alloa, Falkirk, Grangemouth and Cumbernauld.
Book a free Stirling survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Stirling
More services in Stirling
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.