Positive input ventilation (PIV) in Nottinghamshire

PIV is often a good fix for Nottinghamshire homes with condensation on every window.

We carry out positive input ventilation (PIV) across Nottinghamshire, including Arnold, West Bridgford, Sutton-in-Ashfield, Hucknall and Nottingham. Prices use East Midlands rates. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.

PIV in Nottinghamshire at a glance

Area: Nottinghamshire
Towns listed: 15, largest Nottingham
Postcode districts: DE75, NG18, NG19, NG1, NG7 and DE7
Price region: East Midlands
Survey: Free survey (UK mainland)

What positive input ventilation (PIV) involves

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.

Heated PIV

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

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 Nottinghamshire

Positive input ventilation (PIV) guide prices in Nottinghamshire
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.

When to get it looked at

Musty smell in wardrobes or behind furniture
The house feels stuffy and damp rather than cold
Washing dried indoors makes everything worse

Rules in England

In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). For homes, it sets minimum extract rates such as 15 litres a second for a bathroom and 30 or 60 for a kitchen, and expects mechanical systems to be airflow-tested.

How the job runs

Survey
Fixed quote
Install
Set up
Hand over

Towns we cover in Nottinghamshire

Questions about positive input ventilation (PIV) in Nottinghamshire

Is the survey free in Nottinghamshire?

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.

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 rules apply to ventilation in Nottinghamshire?

In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.

Which towns in Nottinghamshire do you cover?

All of Nottinghamshire, including Arnold, West Bridgford, Sutton-in-Ashfield, Hucknall and Nottingham. If your town is not listed, send the postcode and we will confirm.

Most Nottinghamshire PIV jobs are done in half a day, so ask about the next available date.