Positive input ventilation (PIV) in Suffolk

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

Across Suffolk the job is priced the same way wherever you are: what is fitted, how long it takes and how far we travel. Towns we cover include Lowestoft, Bury St Edmunds, Haverhill, Felixstowe and Sudbury.

PIV in Suffolk at a glance

Area: Suffolk
Towns listed: 12, largest Ipswich
Postcode districts: IP28, NR34, NR35, IP5, IP10 and IP3
Price region: East of England
Survey: Free survey (UK mainland)

What positive input ventilation (PIV) involves

PIV works well in houses and flats with general condensation on windows and cold walls. 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.

Loft-mounted PIV

The most common option for houses with a loft. Usually fitted in half a day.

Guide prices in Suffolk

Positive input ventilation (PIV) guide prices in Suffolk
Work	Guide price
Positive input ventilation (PIV) loft unit, supplied and fitted (per home)	£825–£1,475 inc VAT
Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat)	£1,050–£1,775 inc VAT
Heater module or heated PIV unit (extra over a standard unit) (extra)	£150–£310 inc VAT

Guide prices using East of England rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.

Signs it is time to call us

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 England

English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. 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 Suffolk

Questions about positive input ventilation (PIV) in Suffolk

Which rules apply to ventilation in Suffolk?

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.

Will PIV make my house cold?

Most units temper or reduce the flow when the incoming air is cold, and a heated unit warms it. Placed correctly on the landing, the air spreads gently rather than blowing on anyone.

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.

Which towns in Suffolk do you cover?

All of Suffolk, including Lowestoft, Bury St Edmunds, Haverhill, Felixstowe and Sudbury. If your town is not listed, send the postcode and we will confirm.

Are prices different in Suffolk?

Our guide prices are adjusted by region. In Suffolk we use East of England rates, so positive input ventilation (PIV) loft unit, supplied and fitted is typically £825 to £1,475 inc VAT per home.

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