If you suspect that you have a mould problem inside your home, you need to remove it promptly, for the sake of your health. But mould doesn't always grow where you can see it. Mould often grows and spreads inside walls. Fortunately, if you know what to look for, you can identify the presence of mould even if that mould is out of sight.

If you suspect that mould might be growing inside your walls, look for the following signs.

Musty odours

Wherever there is mould, you'll be able to detect a musty odour in the vicinity. If the odour appears to emanate from a wall in your home, mould could be growing on the other side of the wall. Be wary of electrical outlets in the area, however, as wherever there is mould, there is likely a moisture problem too.

Water stains

Mould thrives wherever there is an abundance of moisture. If you see discolouration on your walls, this indicates a moisture problem such as a leaky pipe or leaky roof allowing water to flow inside your walls. Because of that, take discolouration seriously as mould might not be very far away.  

Peeling and bubbling wallpaper

If your wallpaper or paint is beginning to bubble or peel in an area of your home, then moisture is likely to be the cause. This could mean that there is also mould growing behind the paint or wallpaper. But be careful not to disturb the wallpaper because doing so could then expose you to mould spores.

Visible dampness on the wall

Since mould needs moisture to thrive, if an area of your wall is visibly damp or wet, then mould could be growing on the other side of the wall. And the dampness likely means that water is leaking into your walls from outside or from a faulty pipe inside your home. You'll need a plumber and a mould removal expert in this case.  

Unexplained allergy symptoms

If you and the other members of your household have begun to experience unexplained allergy symptoms like itchy eyes and skin, runny nose and difficulty breathing, then mould could be to blame. Check the walls of your home for the aforementioned signs if you find yourself suffering from unexplained allergy symptoms.

Mould, especially black mould, can cause asthma attacks and severe allergic reactions. If you suspect that mould is growing in your walls, hire a mould removal service to locate and remove your mould problem. You'll also need to work out why you have a moisture problem inside your walls to prevent future outbreaks of mould.