Common Moulds Found in Homes

Moulds are classified as fungi and can be found anywhere.  There are thousands of species of fungi, but it’s important to know the types of mould that grow inside and outside our homes. We all know that mould can pose a threat to our family, especially, children, the elderly and those who are already unwell, if not taken care of immediately.

Here are some of the most common types of mould found inside the average household; indoors and out.


Usually found growing on damp carpet, wallpaper and other moist surfaces. The danger of this mould is it produces mycotoxins that cause health problems like asthma, respiratory irritation, fatigue and depression. Also, many people are allergic to this kind of mould.


This mould is usually found outdoors but it also grows in damp places indoors like sinks, bathrooms and on and around leaky pipes. This mould can easily spread from one area to another and exposure to this kind of mould can cause allergic reactions and  trigger asthma attacks.

Stachybotrys Chartarum

This mould is referred to as “Black Mould” and can be distinguished by its slimy black appearance and musty odor. Also referred as “toxic mould,” it can produce mycotoxins like the trichoderma that can cause health issues after contact.


Ulocladium  requires a lot of water, thus it grows on damaged water pipes, wet walls and in homes that have been heavily damaged by floods.


An indoor mould that causes allergic reactions, respiratory infections and a condition called hypersensitivity pneumonitis caused by antigens found in this mould which cause inflammation of the lungs.


Often found indoors where moisture and water is present like leaky pipes, it can also be found on food items such as dried food, fruits, cheese and more. Contact can lead to a high fever, asthma and hypersensitivity. It is recommended that you call in mould experts to deal with this kind of mould. The common characteristic of this mould is blue or green in color.

Mould Doctor SA can help with any kind of mould problem.  If you are concerned about mould in your home or workplace please give us a call.