Hereford, Herefordshire
Positive input ventilation (PIV) in Hereford
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Hereford and HR1, HR2 and HR4.
- From £795 inc VAT per home
- Free survey

Condensation in Hereford homes usually has one of two answers: better extract fans, or PIV as well.
Customers in Hereford can get a guide price online in a couple of minutes. It uses West Midlands rates, which is what we would charge for the same job anywhere in Herefordshire. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Hereford at a glance
- Town
- Hereford, Herefordshire
- Postcode districts
- HR1, HR2 and HR4
- Nearby
- Ross-on-Wye (12 miles), Leominster (12 miles) and Great Malvern (17 miles)
- Price region
- West Midlands
- Survey
- Free survey (UK mainland)
PIV for Hereford homes
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.
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.
Guide prices in Hereford
| Work | Guide price |
|---|---|
| Positive input ventilation (PIV) loft unit, supplied and fitted (per home) | £795–£1,395 inc VAT |
| Wall-mounted PIV unit for a flat (core drilled through an outside wall) (per flat) | £995–£1,695 inc VAT |
| Heater module or heated PIV unit (extra over a standard unit) (extra) | £145–£295 inc VAT |
Guide prices using West Midlands rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
When to get it looked at
- 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
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.
Questions from Hereford
What area around Hereford do you work in?
All of Herefordshire. Near Hereford that includes Ross-on-Wye, Leominster, Great Malvern and Cinderford.
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.
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.
Do you cover Hereford and nearby?
Yes. We cover Hereford and nearby places including Ross-on-Wye, Leominster, Great Malvern and Cinderford. Send your postcode and we will confirm.
What is the price of a PIV unit in Hereford?
Guide prices for Hereford use West Midlands rates: positive input ventilation (PIV) loft unit, supplied and fitted is typically £795 to £1,395 inc VAT per home. We confirm a fixed price in writing before any work starts.
Tell us whether your Hereford home has a loft and we can price a PIV unit before visiting.
PIV near Hereford
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