Mold, Clwyd
Positive input ventilation (PIV) in Mold
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Mold and CH5, CH6 and CH7.
- From £750 inc VAT per home
- Free survey

PIV is often a good fix for Mold homes with condensation on every window.
We cover Mold and the surrounding CH5, CH6 and CH7 postcodes as part of our work across Clwyd. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
PIV in Mold at a glance
- Town
- Mold, Clwyd
- Postcode districts
- CH5, CH6 and CH7
- Nearby
- Buckley (2 miles), Deeside (5 miles) and Hawarden (5 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.
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 Mold
| 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.
Signs it is time to call us
- 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
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 Mold
What area around Mold do you work in?
All of Clwyd. Near Mold that includes Buckley, Deeside, Hawarden and Flint.
How long does PIV installation take?
A loft unit is normally fitted in two to four hours, including the diffuser and electrical connection.
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.
Do you cover Mold and nearby?
Yes. We cover Mold and nearby places including Buckley, Deeside, Hawarden and Flint. Send your postcode and we will confirm.
What is the price of a PIV unit in Mold?
Guide prices for Mold 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.
Send a photo of your loft hatch area and landing ceiling for a quicker Mold quote.
PIV near Mold
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