Positive input ventilation (PIV) in Lincolnshire

If your Lincolnshire flat has no loft, a wall-mounted PIV unit does the same job through an outside wall.

If you are anywhere in Lincolnshire, send the postcode and a few photos and we will tell you what we would recommend. Towns we cover include Boston, Grantham, Cleethorpes, Spalding and Skegness.

PIV in Lincolnshire at a glance

Area: Lincolnshire
Towns listed: 17, largest Lincoln
Postcode districts: PE9, DN21, LN11, NG34, PE10 and PE4
Price region: East Midlands
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.

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.

Heated PIV

A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.

Guide prices in Lincolnshire

Positive input ventilation (PIV) guide prices in Lincolnshire
Work	Guide price
Positive input ventilation (PIV) loft unit, supplied and fitted (per home)	£775–£1,375 inc VAT
Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat)	£975–£1,650 inc VAT
Heater module or heated PIV unit (extra over a standard unit) (extra)	£140–£290 inc VAT

Guide prices using East Midlands 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 England

English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.

How the job runs

Survey
Fixed quote
Install
Set up
Hand over

Towns we cover in Lincolnshire

Questions about positive input ventilation (PIV) in Lincolnshire

Which towns in Lincolnshire do you cover?

All of Lincolnshire, including Boston, Grantham, Cleethorpes, Spalding and Skegness. If your town is not listed, send the postcode and we will confirm.

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.

Are prices different in Lincolnshire?

Our guide prices are adjusted by region. In Lincolnshire we use East Midlands rates, so positive input ventilation (PIV) loft unit, supplied and fitted is typically £775 to £1,375 inc VAT per home.

Is the survey free in Lincolnshire?

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.

Send a photo of your loft hatch area and landing ceiling for a quicker Lincolnshire quote.