Black mould Part 1 - What is black mould?

8th Oct 2016

Hello everyone. Firstly, thank you all for reading my first blog on the origin of How’s Your House - it was great to read your feedback and hopefully the site will be of use to you when looking for rental properties across the UK.

I’m starting to receive a few requests in from people for blog topics and I will try to write as many of them as I can when time permits. If anyone has any property related questions/topics you would like me to answer in a blog, please drop me an email ( or make contact with the site through any of our Social Media platforms and I’ll do my best to answer your queries.

The next few blogs I’m going to write will concentrate on one of the largest problems found in both owned and rental properties across the UK - black mould. In this blog, we’ll look at mould itself; what is it and how to spot it. We’ll then go on to look into the different causes of black mould and how to treat & prevent each - You’ll be pleased to know there are a few small changes that you can make to help avoid a build up in your home.

Black mould (or Stachybotrys Chartarum) is primarily caused by a form of dampness in your home. This can be caused by penetrating damp, bursts & leaks and more commonly, condensation. We’ll look into each of these in more detail later but for now, lets concentrate on the mould itself.

Black mould appears in clusters of small black dots on your walls and ceilings and can spread to clothes and furniture in your home via the atmosphere. As the black mould is an organic organism it requires moisture in order to grow. The mould will propagate itself and will spread by releasing spores into the air in your home. These can be extremely hazardous to your health; especially if you already suffer from respiratory illnesses like asthma. If you live in close proximity to black mould and are exposed to the spores for a prolonged period of time, you may suffer from other breathing problems, damage to internal organs and even death.

As well as it’s well known look, black mould also has a distinctive musty smell. You may have mould in your home even if you cannot see it. In this case, it may be hidden behind furniture or even under floor coverings & behind wall paper.

If you discover black mould in your home, treating it should be a priority. Unfortunately though there is no one full proof way to treat black mould and therefore I would stress that initial prevention is the best cure. However this can’t always be the case and so in the coming blogs when we look into each of the different causes of black mould, we will also explore how to treat each and stop them from returning.

I hope that the first part of this blog has given you a bit of an insight into black mould in properties. I hope there are some causes in the blogs to come that relate to you as we can find solutions for these together and hopefully eradicate your problem. If however you have any other problems/questions relating to black mould in your home that you would like to discuss with me, please feel free to drop me a message on any of the channels mentioned above and I’ll try my best to answer them all.

That’s it from me for now. In the next part I’m going to concentrate on penetrating damp as it is a common cause of black mould that people are often aware of. If you have mould appearing in random places in your home, penetrating damp may well be the cause. I’ll get the second part of this blog to you as soon as I can and together we can start getting rid of the black mould in your home for good!