0800 088 6341
Ventilation Contractors

Bury, Greater Manchester

Positive input ventilation (PIV) in Bury

Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Bury and BL8, BL9 and M26.

  • From £750 inc VAT per home
  • Free survey
Positive input ventilation unit sitting on loft insulation

PIV can suit Bury houses and flats because it treats the whole home from one quiet unit.

Work in Bury follows the rules for England and finishes with a written record of what was fitted and how it was set up.

PIV in Bury at a glance

Town
Bury, Greater Manchester
Postcode districts
BL8, BL9 and M26
Nearby
Radcliffe (3 miles), Heywood (3 miles) and Ramsbottom (3 miles)
Price region
North West
Survey
Free survey (UK mainland)

How we approach PIV in Bury

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.

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 Bury

Positive input ventilation (PIV) guide prices in Bury
WorkGuide price
Positive input ventilation (PIV) loft unit, supplied and fitted (per home)£750–£1,325 inc VAT
Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat)£950–£1,600 inc VAT
Heater module or heated PIV unit (extra over a standard unit) (extra)£140–£280 inc VAT

These ranges use our North West rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.

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 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.

Questions from Bury

What is the price of a PIV unit in Bury?

Guide prices for Bury use North West rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £750 to £1,325 inc VAT per home. We confirm a fixed price in writing before any work starts.

Does PIV really stop condensation?

PIV reduces condensation in most homes because it dilutes moist air and keeps it moving, but it works best alongside working extract fans in the kitchen and bathroom. Leaks, rising damp or a cold bridge need fixing separately.

How much does PIV cost to run?

A standard PIV unit uses very little electricity, comparable to a low-energy light bulb on normal speed. A heated unit costs more in cold spells because the heater switches on when loft air is cold.

Is the survey free in Bury?

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 do I get a price for a PIV unit in Bury?

Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.

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

PIV near Bury

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