Ammanford, Dyfed
Positive input ventilation (PIV) in Ammanford
Loft or wall units that gently push filtered air into the home to tackle condensation. Covering Ammanford and SA18.
- From £750 inc VAT per home
- Free survey
Condensation in Ammanford homes usually has one of two answers: better extract fans, or PIV as well.
We cover Ammanford and the surrounding SA18 postcodes as part of our work across Dyfed. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
PIV in Ammanford at a glance
- Town
- Ammanford, Dyfed
- Postcode districts
- SA18
- Nearby
- Clydach (8 miles), Gorseinon (9 miles) and Ystalyfera (9 miles)
- Price region
- Wales
- Survey
- Free survey (UK mainland)
What the work involves
Loft air is usually a little warmer and drier than outside air, and the unit filters it before it comes down into the house. 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.
PIV with fan upgrades
PIV plus humidity-controlled extract fans in the kitchen and bathroom for the most stubborn condensation.
Loft-mounted PIV
The most common option for houses with a loft. Usually fitted in half a day.
Guide prices in Ammanford
| 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
- 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. We design to the Welsh rates and commission mechanical systems so the results can be recorded.
Questions from Ammanford
What is the price of a PIV unit in Ammanford?
Guide prices for Ammanford 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 Ammanford?
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 Ammanford?
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.
Book a free Ammanford survey and we will say honestly whether PIV, extract fans or both are needed.
PIV near Ammanford
More services in Ammanford
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Answer a few questions for a price range, or send photos and we will come back to you with a written quote.