Brynmawr, Gwent
Positive input ventilation (PIV) in Brynmawr
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Brynmawr and NP8, NP22 and NP23.
- From £750 inc VAT per home
- Free survey
PIV is often a good fix for Brynmawr homes with condensation on every window.
We cover Brynmawr and the surrounding NP8, NP22 and NP23 postcodes as part of our work across Gwent. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Brynmawr at a glance
- Town
- Brynmawr, Gwent
- Postcode districts
- NP8, NP22 and NP23
- Nearby
- Ebbw Vale (2 miles), Tredegar (3 miles) and Abertillery (5 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
What the work involves
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 Brynmawr
| 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 |
Wales rates shown. Prices include VAT at 20%. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
- You have no loft but still need whole-flat ventilation (wall unit)
Rules that apply in Wales
Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. Extract rates and commissioning are checked against the Welsh guidance on every job.
Questions from Brynmawr
Do you cover Brynmawr and nearby?
Yes. We cover Brynmawr and nearby places including Ebbw Vale, Tredegar, Abertillery and Abergavenny. 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 Brynmawr?
Guide prices for Brynmawr 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.
Is the survey free in Brynmawr?
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.
Send a photo of your loft hatch area and landing ceiling for a quicker Brynmawr quote.
PIV near Brynmawr
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