Coity, Mid Glamorgan
Positive input ventilation (PIV) in Coity
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Coity and CF31, CF32 and CF35.
- From £750 inc VAT per home
- Free survey
For a typical Coity semi or terrace, a loft PIV unit is often the quickest way to dry the house out.
We cover Coity and the surrounding CF31, CF32 and CF35 postcodes as part of our work across Mid Glamorgan. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Coity at a glance
- Town
- Coity, Mid Glamorgan
- Postcode districts
- CF31, CF32 and CF35
- Nearby
- Bridgend (2 miles), Aberkenfig (2 miles) and Pyle (6 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
What the work involves
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.
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 Coity
| 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.
When to get it looked at
- You have no loft but still need whole-flat ventilation (wall unit)
- Streaming windows on most mornings in winter
- Black mould on window reveals and in corners of bedrooms
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 Coity
What is the price of a PIV unit in Coity?
Guide prices for Coity 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.
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.
Is the survey free in Coity?
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 do I get a price for a PIV unit in Coity?
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.
Get a PIV guide price for your Coity home online, then confirm it on a free survey.
PIV near Coity
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