Condensation

Most Common Cause of Damp in UK Homes

Condensation affects millions of properties across the UK. It’s the number one cause of black mould, musty smells, wet windows, and damp patches.

Why Condensation Happens

Warm air holds moisture. When that warm, moist air hits a cold surface (like a chilly outside wall or a bedroom window), it dumps that moisture as water droplets. This is why you see:
Daily life creates far more moisture than most people realise cooking, showers, drying clothes indoors, even just breathing. Modern homes don’t help: Double glazing, insulation and sealed-up chimneys all trap that moisture inside
APPROACH

How Fix Condensation Properly

01
A proper survey
We measure humidity, check airflow, look for cold spots, and assess the property’s ventilation above and below the floor.
02
Positive Input Ventilation (PIV)
A long-term, low-energy solution that introduces fresh, filtered air into the home and pushes out the moisture-laden air.
03
Upgraded extractor fans
Most homes have fans that are too weak, broken, or don’t run long enough.
04
Subfloor ventilation checks
Poor airflow under wooden floors often leads to cold floors and high humidity in the rooms above.
05
Practical, simple advice
Things you can do day-to-day that make a real difference.

Why Condensation is a Problem

Left alone, it leads to:
It’s not just uncomfortable — it’s unhealthy. The good news? It’s usually one of the easiest problems to fix — once you understand why it’s happening
DIY FIXES

Why DIY Fixes Usually Don’t Work

If the moisture isn’t being removed from the home, the problem will always return
With the right ventilation strategy, condensation can’t survive. Our goal is simple: A warm, dry, healthy home with fresh air — every day of the year
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Book Your Free Condensation Survey

Let us help you understand exactly what’s causing condensation in your home and what will fix it.

At Condentrol, we specialise in identifying the real causes of damp, mould, and condensation in UK homes.

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