Positive input ventilation (PIV) in West Yorkshire

Condensation in West Yorkshire homes usually has one of two answers: better extract fans, or PIV as well.

West Yorkshire has every kind of building, from old terraces to new estates and business parks, and every job is designed around the building in front of us, not a standard kit.

PIV in West Yorkshire at a glance

Area: West Yorkshire
Towns listed: 38, largest Leeds
Postcode districts: BD15, BD16, LS25, LS26, BD16 and BD17
Price region: Yorkshire
Survey: Free survey (UK mainland)

What the work 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 West Yorkshire

Positive input ventilation (PIV) guide prices in West Yorkshire
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

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 in England

In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). It sets extract rates for kitchens, bathrooms and utilities and asks for mechanical ventilation to be commissioned and recorded.

How the job runs

Survey
Fixed quote
Install
Set up
Hand over

Towns we cover in West Yorkshire

Questions about positive input ventilation (PIV) in West Yorkshire

Is the survey free in West Yorkshire?

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.

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.

Which rules apply to ventilation in West Yorkshire?

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 West Yorkshire do you cover?

All of West Yorkshire, including Morley, Keighley, Leeds, Bradford and Huddersfield. If your town is not listed, send the postcode and we will confirm.

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