Positive input ventilation (PIV) in Lanarkshire

We fit loft and wall-mounted PIV units across Lanarkshire, after checking the house first.

Our team is based in Great Barr, Birmingham, and we work throughout Lanarkshire, from Motherwell, Rutherglen, East Kilbride, Hamilton and Meikle Earnock. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.

PIV in Lanarkshire at a glance

Area: Lanarkshire, Scotland
Towns listed: 18, largest East Kilbride
Postcode districts: G40, G42, G32, G72, ML1 and ML2
Price region: Scotland
Survey: Free survey (UK mainland)

How we do it

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.

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 Lanarkshire

Positive input ventilation (PIV) guide prices in Lanarkshire
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.

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

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.

How the job runs

Survey
Fixed quote
Install
Set up
Hand over

Towns we cover in Lanarkshire

Questions about positive input ventilation (PIV) in Lanarkshire

Which rules apply to ventilation in Lanarkshire?

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.

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 towns in Lanarkshire do you cover?

All of Lanarkshire, including Motherwell, Rutherglen, East Kilbride, Hamilton and Meikle Earnock. If your town is not listed, send the postcode and we will confirm.

Are prices different in Lanarkshire?

Our guide prices are adjusted by region. In Lanarkshire we use Scotland rates, so positive input ventilation (PIV) loft unit, supplied and fitted is typically £775 to £1,350 inc VAT per home.

Get a PIV guide price for your Lanarkshire home online, then confirm it on a free survey.