Merthyr Tydfil, Mid Glamorgan
Positive input ventilation (PIV) in Merthyr Tydfil
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Merthyr Tydfil and CF44, CF47 and CF48.
- From £750 inc VAT per home
- Free survey
For a typical Merthyr Tydfil semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
Merthyr Tydfil is about 83 miles from our base in Great Barr, Birmingham. We book Merthyr Tydfil visits by appointment and confirm the date in writing. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Merthyr Tydfil at a glance
- Town
- Merthyr Tydfil, Mid Glamorgan
- Postcode districts
- CF44, CF47 and CF48
- Nearby
- Aberdare (4 miles), Mountain Ash (4 miles) and Tredegar (6 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
PIV for Merthyr Tydfil homes
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.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Guide prices in Merthyr Tydfil
| 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.
When to get it looked at
- Black mould on window reveals and in corners of bedrooms
- Musty smell in wardrobes or behind furniture
- The house feels stuffy and damp rather than cold
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 Merthyr Tydfil
How do I get a price for a PIV unit in Merthyr Tydfil?
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.
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.
What area around Merthyr Tydfil do you work in?
All of Mid Glamorgan. Near Merthyr Tydfil that includes Aberdare, Mountain Ash, Tredegar and Treharris.
Do you cover Merthyr Tydfil and nearby?
Yes. We cover Merthyr Tydfil and nearby places including Aberdare, Mountain Ash, Tredegar and Treharris. Send your postcode and we will confirm.
Send a photo of your loft hatch area and landing ceiling for a quicker Merthyr Tydfil quote.
PIV near Merthyr Tydfil
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