Risca, Gwent
Positive input ventilation (PIV) in Risca
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Risca and NP10, NP11 and NP20.
- From £750 inc VAT per home
- Free survey

For a typical Risca semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Customers in Risca can get a guide price online in a couple of minutes. It uses Wales rates, which is what we would charge for the same job anywhere in Gwent. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Risca at a glance
- Town
- Risca, Gwent
- Postcode districts
- NP10, NP11 and NP20
- Nearby
- Abercarn (3 miles), Newport (5 miles) and Cwmbran (5 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
How we approach PIV in Risca
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. Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole.
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 Risca
| Work | Guide 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 Wales rates. Prices include VAT at 20%. You get a fixed written price before any work is booked.
When to get it looked at
- 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 Wales
In Wales, ventilation follows the Welsh Approved Document F rather than the English version, with building control checking notifiable work. Extract rates and commissioning are checked against the Welsh guidance on every job.
Questions from Risca
What is the price of a PIV unit in Risca?
Guide prices for Risca use Wales 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.
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.
Is the survey free in Risca?
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 Risca?
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 Risca home online, then confirm it on a free survey.
PIV near Risca
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