To ensure properties remain mould-free, ventilation is critical. This becomes harder when winter sets in and people like to keep all their windows closed to ensure no heat escapes – hard as this is to accept – this is what causes the issue. 

Mould thrives in damp environments so you’ll likely find a build up in the kitchen and bathroom, but also the bedroom. The latter may surprise you, but this is a common place where people dry washing (which increases humidity) and also where on average you’ll add half a pint of water to the air while asleep (and if drying clothes nine pints). 

At its most basic, condensation is the moisture formed when warm, humid air hits a cold surface. That’s why you’re likely to find it on your window panes, behind bulky furniture (which should always be kept a couple of inches away from the wall) and in cupboards. 

Like most things, prevention is better than cure. A window left slightly ajar to allow ventilation when you’re sleeping, or keeping trickle vents open, will soon see condensation-clear windows. The same is also true of bathrooms and kitchens – opening a window while having a shower or cooking will reduce the build-up. If you want to test this, humidity meters only cost a couple of pounds. It’s also best practice to check extractor fans are working properly and are set to overrun by at least ten minutes. Using anti-mould paint can also help prevent any issues before they occur. 

But, if you do become a victim of mould, (and it happens to the best of us) then early intervention is best to ensure the spores do not spread. HG Mould Spray, in my opinion, is the best product on the market, although a bleach and hot water solution will also work. Then it is about ventilation, ventilation, ventilation.