Llantrisant, Mid Glamorgan
Positive input ventilation (PIV) in Llantrisant
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Llantrisant and CF15, CF38 and CF72.
- From £750 inc VAT per home
- Free survey
PIV can suit Llantrisant houses and flats because it treats the whole home from one quiet unit.
Work in Llantrisant follows the rules for Wales and finishes with a written record of what was fitted and how it was set up.
PIV in Llantrisant at a glance
- Town
- Llantrisant, Mid Glamorgan
- Postcode districts
- CF15, CF38 and CF72
- Nearby
- Pontypridd (4 miles), Tonypandy (7 miles) and Whitchurch (7 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
What the work involves
Flats without a loft use a wall-mounted unit that draws air from outside through a cored hole. PIV works well in houses and flats with general condensation on windows and cold walls.
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 Llantrisant
| 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.
Common reasons people call
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
- Washing dried indoors makes everything worse
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. We design to the Welsh rates and commission mechanical systems so the results can be recorded.
Questions from Llantrisant
Is the survey free in Llantrisant?
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 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.
How do I get a price for a PIV unit in Llantrisant?
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 Llantrisant do you work in?
All of Mid Glamorgan. Near Llantrisant that includes Pontypridd, Tonypandy, Whitchurch and Rhiwbina.
Most Llantrisant PIV jobs are done in half a day, so ask about the next available date.
PIV near Llantrisant
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