Positive input ventilation (PIV) in Bentley

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

Whether the property is in the middle of Bentley or one of the villages around it, the process is the same: a look at the building, a written price, then fitting and testing on the agreed day.

PIV in Bentley at a glance

Town: Bentley, South Yorkshire
Postcode districts: DN1, DN2 and DN5
Nearby: Doncaster (1 mile), Adwick le Street (3 miles) and Kirk Sandall (4 miles)
Price region: Yorkshire
Survey: Free survey (UK mainland)

PIV for Bentley homes

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 Bentley

Positive input ventilation (PIV) guide prices in Bentley
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

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

Common reasons people call

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 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 Bentley

Is the survey free in Bentley?

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.

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.

How long does PIV installation take?

A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.

How do I get a price for a PIV unit in Bentley?

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.

What area around Bentley do you work in?

All of South Yorkshire. Near Bentley that includes Doncaster, Adwick le Street, Kirk Sandall and Armthorpe.

Tell us whether your Bentley home has a loft and we can price a PIV unit before visiting.