If black mould keeps appearing in your home, it’s not just a cosmetic issue. It’s a sign that something deeper is wrong with your home’s airflow. At The PIV Company, we specialise in long-term, low-maintenance solutions designed to tackle damp, condensation and mould from the inside out.
Black mould isn’t just unsightly; it’s a clear warning that your home isn’t ventilating as it should. With Positive Input Ventilation, we eliminate damp, condensation and mould for good, as we address the root cause, so the problem doesn’t keep coming back.
Seeing black mould on your walls or ceiling can be alarming, but it’s important to understand what it actually means. Mould is a symptom of trapped moisture, not the root cause itself. When warm, damp air inside your home meets a cold surface, it turns into condensation. Over time, that moisture seeps into paint, plaster, window frames and soft furnishings, and if nothing changes, black mould spores begin to grow.
The good news is that once you address the ventilation issue, you address the mould.
Cleaning black mould with sprays or bleach will only get you so far. Without fixing the underlying cause, it will keep coming back. The real solution isn’t about removing what you can see. It’s about controlling the moisture and humidity levels that allow mould to grow in the first place.
Poor air quality carries real health risks, too. Prolonged exposure to damp and mould can trigger allergic reactions, skin irritation and long-term damage to the immune system, particularly in children and those with existing conditions.
That’s where The PIV Company comes in. Our PIV systems work by changing the airflow throughout your home, reducing excess moisture and stopping black mould before it ever gets the chance to grow.
Cleaning sprays and a fresh coat of paint might make your walls look better for a while, but they don’t change the conditions that caused the mould in the first place. A PIV system from The PIV Company does far more!
Here’s how it works:
A PIV unit runs silently in the background, every hour of every day. No fuss, no noisy fans, no propping windows open in the middle of winter. Just cleaner, drier air throughout your home without you having to think about it.
The results are hard to miss. Dry windows, paint that stays on the walls, and no more black mould creeping back.
"Great service all round. They fitted the PIV, and my condensation has all but disappeared. Very happy"
"Professional installation with no mess. Noticeable difference in air quality within just a few days"
"Highly recommended. A Friendly engineer, honest pricing, and the PIV system works perfectly"
"Since the installation, the damp windows haven't returned, making it a great investment for our home"
Our expert engineers install PIV units in homes, businesses and rental properties at affordable rates across the Lancashire:
Looking for information about our PIV products and services? We’ve compiled answers to our most frequently asked questions below. If you need further assistance, don’t hesitate to contact us
A PIV (Positive Input Ventilation) system is a simple but effective way to keep your home smelling fresh and feeling healthy. It works by continuously introducing clean, filtered air, gently pushing out the stale, damp air that causes condensation and mould, without you ever having to think about it.
Most homes are suitable for a PIV system, including houses, flats, and bungalows. Our assessors carry out a full review of your property before installation to make sure it’s the right solution. If it’s not, we simply won’t install.
Most installations take just a few hours. Our engineers work efficiently and cleanly, with minimal disruption to your home or business.
Every installation comes with an Electrical Installation Certificate (EIC), a manufacturer’s warranty on your PIV unit, and the peace of mind that all work is fully insured. Our installers are NAPIT registered, so you know you’re in safe hands.
Yes, and not just on the surface. PIV systems target the root causes of black mould, damp walls, and window condensation by improving airflow and removing the excess moisture that causes them in the first place.
Every unit comes with tamper-proof controls fitted as standard. Set it, leave it, and let it work, perfect for landlord-managed properties.