20/02/2026
Does your house suffer condensation, streaming windows or black mould creeping in around corners and window seals? That’s usually a ventilation + humidity problem and it won’t truly go away with just a quick wipe-down.
A proven fix we install: Loft Mounted PIV (Positive Input Ventilation) Unit
A Loft Mounted PIV Unit is a whole-house ventilation system designed for homes with a loft space, gently introducing fresh, filtered air into the home (via a central diffuser on the landing/hallway) and pushing out the moist, stale air that causes condensation and mould.
Why it works (and why mould keeps coming back)
In an average family home, everyday life produces a surprising amount of moisture - breathing, showers, baths, cooking, kettles… it adds up fast. When that moisture has nowhere to go, it turns into surface condensation → musty odours → mould growth.
What the PIV system can help with
▶ Reduces/eliminates surface condensation
▶ Helps eliminate mould and the musty smell
▶ Stops streaming windows
▶ Improves indoor air quality
▶ Quiet operation, long-life filters, and 5-year warranty
Low running costs, smart comfort
The unit uses ultra-low watt DC motor technology (typically just a few watts depending on speed) and an integral comfort pre-heater to help redistribute warmer air from ceiling level.
If you want a proper long-term solution to condensation & mould (not just covering it up), get in touch and we’ll advise the best approach for your property.
📞 01271 327786
✉️ [email protected]