Mountain Ash, Mid Glamorgan
Positive input ventilation (PIV) in Mountain Ash
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Mountain Ash and CF43, CF45 and CF46.
- From £750 inc VAT per home
- Free survey
PIV is often a good fix for Mountain Ash homes with condensation on every window.
Mountain Ash is about 86 miles from our base in Great Barr, Birmingham. We book Mountain Ash visits by appointment and confirm the date in writing. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Mountain Ash at a glance
- Town
- Mountain Ash, Mid Glamorgan
- Postcode districts
- CF43, CF45 and CF46
- Nearby
- Treharris (3 miles), Rhondda (3 miles) and Aberdare (4 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
How we approach PIV in Mountain Ash
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.
Heated PIV
A heater module tempers the incoming air in cold weather. Useful in homes where people feel draughts.
Wall-mounted PIV for flats
Draws air from outside through an outside wall. Suits flats and homes with no loft space.
Guide prices in Mountain Ash
| 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 |
Guide prices using Wales rates. Prices include VAT at 20%. A guide price is not a quote: we confirm a fixed price in writing first.
Signs it is time to call us
- 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 Wales
Wales has its own Part F ventilation guidance, published by the Welsh Government, and work is checked by building control. We design to the Welsh rates and commission mechanical systems so the results can be recorded.
Questions from Mountain Ash
How do I get a price for a PIV unit in Mountain Ash?
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 Mountain Ash do you work in?
All of Mid Glamorgan. Near Mountain Ash that includes Treharris, Rhondda, Aberdare and Merthyr Tydfil.
Do you cover Mountain Ash and nearby?
Yes. We cover Mountain Ash and nearby places including Treharris, Rhondda, Aberdare and Merthyr Tydfil. Send your postcode and we will confirm.
Send a photo of your loft hatch area and landing ceiling for a quicker Mountain Ash quote.
PIV near Mountain Ash
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Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.