At a Glance
This article discusses the UK’s growing mould problems in light of its wet and humid climate, ageing housing stock, ventilation issues and their associated health risks. While mould is ubiquitously present in the environment, different mould types bring varying health and safety risks. Understanding the difference between dangerous types of mould and common mould can increase awareness and help individuals remediate mould growth with the urgency it deserves.
The UK’s Rising Mould Issues
Excessive indoor moisture and condensation issues are characteristic of the UK’s wet weather. This has presented many tenants in social housing and homeowners across the country with an ongoing challenge of mould and dampness. In recent years, mould issues have become increasingly widespread due to ageing stock, structural defects, and rising energy costs.
Even simple day-to-day activities like cooking, bathing or doing laundry can compound mould issues if not supported by adequate heating, proper ventilation and insulation. Moreover, many are tempted to ignore small discoloured patches of mould, assuming they’re harmless when in reality, they can spread quickly and become a serious health and safety risk. This is further compounded by mould removal myths that downplay the severity of the issue.
This is where understanding different mould types can make a difference in remediation, as prolonged exposure to mould is linked to allergies, respiratory illnesses, and other health risks.
So what are the different types of mould, you may ask? In this article, we discuss this, including its risks and how you can effectively address mould with professional cleaning solutions.
Why Mould Appears in Homes
Did you know mould is present in our everyday environment? Mould growth is stronger in homes where there’s a blend of moisture, humidity, and poor indoor air quality. One of the leading causes of mould growth in UK homes is condensation, which occurs when warm, moist air hits a cold surface.
External structural defects can also create an atmosphere conducive to mould growth. A leaking roof here, a cracked rendering there, may not seem like a major issue, but these usually allow water to seep through, leading to damp walls. Stachybotrys chartarum is a type of toxic mould identified by its distinct black colour that thrives in penetrating damp, appearing on wallpapers and fibreboards.
Different Types of Mould
Identifying different types of mould in houses in a definitive sense is only possible in lab settings. However, there are visual cues you can look for that can help you distinguish between dangerous types of mould and the more common types of mould in homes. While scientific mould names might be tricky to remember, you may find it easier to identify the different types of mould in your home by colour, odour and other notable characteristics.
Toxigenic Mould or Black Mould
Stachybotrys chartarum, as mentioned earlier, is a toxic type of mould that releases harmful compounds. This can cause severe allergic reactions, nasal congestion, wheezing, and rashes. It can be particularly problematic for vulnerable people like babies, young children and the elderly with weakened immune systems.
This type of mould can be easily recognised by its circular pattern, musty odour and black, greenish or deep brown slimy patches. Awaab’s Law highlights the health risks posed by black mould in social housing, reinforcing its status as a serious health hazard.
Order our Black Mould Remover here.
Allergenic Mould Types
Allergenic moulds are called so because prolonged exposure can trigger allergic reactions in people with sensitivities. This mould type thrives in damp indoor and outdoor environments. Of these, Cladosporium mould, a ceiling mould, can be recognised by its dark web-like stain pattern. While they’re not the most dangerous type of mould, they can still cause fungal sinusitis, an itchy throat, cough and even asthma.
Penicillium mould and Alternaria mould are common examples of allergenic moulds, which are also pathogenic in nature. They produce airborne spores and can spread quickly in damp areas. You can identify Penicillium mould by its distinct bluish-green or white fuzzy texture, whereas Alternaria mould will typically have a velvety texture and appear as dark green, brown or black.
If you find these different types of mould in your house, it could indicate moisture issues stemming from persistent damp, leaks, condensation buildup or poor ventilation. Addressing the underlying causes behind this type of mould growth is crucial to prevent recurring mould issues and health risks.
Pathogenic Moulds
Pathogenic moulds are considered to be a fairly dangerous type of mould. They’re often associated with opportunistic infections, meaning they are capable of causing mild to severe infections in people with a weak immune system. As a result, it can pose a significant health risk to those with pre-existing conditions like asthma or who are on medications due to underlying health conditions.
Aspergillus, Fusarium, Mucor and Rhizopus are examples of different types of pathogenic moulds found in the UK. Aspergillus mould spores are generally found in damp areas, around decaying organic matter and even in air conditioning systems. Exposure to this type of mould can lead to Aspergillosis in immunocompromised individuals.
When to Call in the Experts for Mould Removal
A proactive cleaning strategy that involves proper ventilation and using industrial-grade cleaning products can help you address different types of mould in homes. For example, AMB Hygiene’s 2 Step Mould Remover is a high-quality cleaning solution that is ready-to-use, safe and effective.
However, for more serious and widespread mould, you’ll need the help of mould removal specialists. This is highly recommended if your mould growth area is more than 1 square metre, is spread out throughout your home, or you’re facing persistent and recurring mould issues.
Professional cleaning services offer structural audits to detect hidden mould issues and can help implement effective remediation measures to prevent mould and damp. It’s particularly important to do this if you’re a private landlord, council or housing association, as it can pose significant health risks to your tenants.
For Effective Mould Removal Solutions, Contact AMB Hygiene
Now you know the different types of mould and how professional Mould Removal solutions can help, you’ll need our high-quality cleaning products to ensure a mould-free environment.
At AMB Hygiene, we understand the need for quick, fast-acting products that can be used to meet urgent mould removal needs, be it in a council flat or a commercial property.
Our products tackle mould and organic matter at the source while providing thorough disinfection of surfaces, helping you protect your home and your loved ones.
Our team is dedicated to providing the best cleaning products and services, tailored to meet your specific needs.
Check out our shop, or fill in our contact form if you have any questions.


