Giffnock, Renfrewshire and Inverclyde
Positive input ventilation (PIV) in Giffnock
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Giffnock and G43, G44 and G46.
- From £775 inc VAT per home
- Free survey

We fit loft and wall-mounted PIV units across Giffnock, after checking the house first.
For positive input ventilation (PIV) in Giffnock, 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 Giffnock at a glance
- Town
- Giffnock, Renfrewshire and Inverclyde
- Postcode districts
- G43, G44 and G46
- Nearby
- Newton Mearns (3 miles), Rutherglen (4 miles) and Barrhead (4 miles)
- Price region
- Scotland
- Survey
- Free survey (UK mainland)
How we approach PIV in Giffnock
It does not replace extract fans: kitchens and bathrooms still need their own extract to remove steam at source. On survey we check the loft, the landing position and the existing fans, and we tell you if PIV is not the right answer.
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 Giffnock
| 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 |
Scotland rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Common reasons people call
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
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 Giffnock
Do you cover Giffnock and nearby?
Yes. We cover Giffnock and nearby places including Newton Mearns, Rutherglen, Barrhead and Glasgow. Send your postcode and we will confirm.
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.
What is the price of a PIV unit in Giffnock?
Guide prices for Giffnock 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.
Is the survey free in Giffnock?
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.
We will check the existing fans in your Giffnock home at the same visit, because PIV works best with them working.
PIV near Giffnock
More services in Giffnock
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.