Positive input ventilation (PIV) in Selby

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

We cover Selby and the surrounding YO8 postcodes as part of our work across North Yorkshire. We survey first, free of charge for new installations on the mainland, then send a fixed written quote.

PIV in Selby at a glance

Town: Selby, North Yorkshire
Postcode districts: YO8
Nearby: Knottingley (9 miles), Goole (10 miles) and Pontefract (12 miles)
Price region: Yorkshire
Survey: Free survey (UK mainland)

What the work involves

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.

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.

Guide prices in Selby

Positive input ventilation (PIV) guide prices in Selby
Work	Guide price
Positive input ventilation (PIV) loft unit, supplied and fitted (per home)	£750–£1,300 inc VAT
Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat)	£925–£1,600 inc VAT
Heater module or heated PIV unit (extra over a standard unit) (extra)	£135–£275 inc VAT

Yorkshire rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.

Common reasons people call

Washing dried indoors makes everything worse
You have no loft but still need whole-flat ventilation (wall unit)
Streaming windows on most mornings in winter

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 Selby

Do you cover Selby and nearby?

Yes. We cover Selby and nearby places including Knottingley, Goole, Pontefract and York. Send your postcode and we will confirm.

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.

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.

What is the price of a PIV unit in Selby?

Guide prices for Selby use Yorkshire rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £750 to £1,300 inc VAT per home. We confirm a fixed price in writing before any work starts.

Is the survey free in Selby?

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.

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