
PIV Unit Installation.
Fresh Air. Healthier Homes.
Clear Air PIV are your local experts in Positive Input Ventilation (PIV). We operate across Derbyshire, South Yorkshire, Nottinghamshire, and the Peak District. We bring cleaner, fresher air to homes and businesses with our energy efficient PIV Systems.
Getting a PIV System Is
As Easy as 1, 2, 3
At Clear Air PIV, we make the whole process simple, stress-free, and cost-effective.


What is PIV & How Does it Work?
Positive Input Ventilation (PIV) system is a cost-effective, low-maintenance way to reduce condensation. Stop black mould. But most importantly improve air quality. With better house ventilation in your home, a PIV unit gently pushes out stale, damp air. Then replace it with fresh, filtered air. All day, every day.
No more wet windows. No more musty smells. Just cleaner air for you and your family.

Signs Your Home Needs Better Ventilation
Many homeowners don't realise their property has ventilation issues until problems become serious. Common warning signs include: water droplets forming on windows and mirrors, musty or stale odours that won't go away, black spots appearing on walls or ceilings, and clothes or soft furnishings feeling damp.
You might also notice increased allergy symptoms, disturbed sleep, or that your home feels stuffy even with windows open. These are all indicators that your home's natural ventilation isn't sufficient.
A PIV system addresses these issues at source, creating a healthier living environment for you and your family whilst protecting your property investment.

Lauren Barker
Oct 3, 2025
I recently had a new PIV unit installed by ClearAIR and the experience was excellent from start to finish. Steven and his team were professional, efficient, and a pleasure to deal with throughout the entire process. Since the installation, our mould problems have completely resolved and the improvement in air quality has been remarkable. ClearAIR delivered outstanding service and results, and I would not hesitate to recommend them.
Craig Church
Oct 3, 2025
We’ve recently used Clear AIR PIV , as a property we bought had severe mould and condensation issues. Steven was clear right from the start, and all the way through the process whilst the PIV system was installed. Excellent service and was on hand with any questions and queries we had. The results were unreal and I highly recommend.
Sarah Cocking
Oct 2, 2025
Would highly appreciated Steven at clear air piv. From start to finish he was so helpful and kept us upto date with the installation. We've noticed a massive difference since. Thank you for a great service
Sarah Brent
Oct 2, 2025
Excellent Service and Results! I recently had a new PIV system installed in my home, and I couldn't be happier with the outcome. Communication with Steven was excellent from start to finish — he responded immediately to any queries and kept me informed throughout the entire process. The installation itself was smooth and professional. Since having the system installed, I’ve had no issues with mould or condensation — a huge improvement! I would highly recommend Steven and his company, CLEARAIR PIV Ltd. Reliable, efficient, and effective service.
Lois Green
Oct 2, 2025
Couldn’t recommend Steven enough. From start to finish the communication was amazing and everything was explained so clearly. He was professional, efficient, and made the whole process completely stress-free. The quality of work is outstanding, and it’s clear he really takes pride in what he does. I wouldn’t hesitate to recommend Steven at Clear Air PIV to anyone looking for a reliable and trustworthy service.