What are the warning signs of mould in ducts?

Mould growth in air ducts is a common problem that many homeowners face. It can have serious health implications, especially for people with allergies or respiratory issues. Mould spores can spread throughout your home via the HVAC system, making it important to know the warning signs of mould growth in your ducts. In this blog, we will explore the various indicators that can help you detect mould in your air ducts and discuss what you can do to prevent it from becoming a serious problem.

Trust Your Senses

Trusting your nose is a good way to detect mould in your air ducts. Mould growth can cause health problems and it is important to identify and remove it as soon as possible. When you turn on your HVAC system, if you notice a musty smell or any other unpleasant odour, it could be a sign of mould growth.
You may also notice visible growth on or around your vents or ductwork.
This visible growth may be a sign of mould growth in your ducts. Mould thrives in moist environments, and ductwork can often become damp due to condensation. Also, if you have a general feeling of discomfort or unease when you are inside your home this could be a sign of higher than normal humidity levels which can in turn impact mould growth in your ducts. Increased humidity can also be noticed with the presence of condensation on your windows or walls, or a damp feeling in the air. Maintaining proper humidity levels in a home is important for both comfort and health. The ideal range for indoor humidity is between 30 and 50%, as levels below or above this range can cause a variety of issues.

Health Issues

Mould in ducts can cause a variety of allergic reactions, including sneezing, coughing, itchy eyes, and a runny nose. If you notice these symptoms when you are in your home, it is possible that there is mould growing in your ducts. These symptoms can be especially severe for people who already have existing respiratory issues or allergies. If you or someone in your household is experiencing asthma attacks or difficulty breathing, it is important to seek medical attention immediately. In some cases, mould in ducts can be life-threatening, especially for people with weakened immune systems or pre-existing respiratory conditions. Other symptoms related to your health may be headaches, fatigue, and difficulty concentrating. If you or a loved one experience any of these issues, it is time to have your ducts inspected and cleaned.

Increased Energy Bills

One clear indication of the presence of mould in your home's ducts is the rise in your energy expenses. This is due to the fact that the mould can obstruct the air circulation in your ducts, which causes your HVAC system to operate more vigorously in order to sustain the desired temperature. If you observe a substantial increase in your energy bills, it is a plausible sign that there is mould in your ducts.
 
In conclusion, it is crucial to be aware of the warning signs of mould in ducts, as it can have serious health implications. These warning signs include a musty smell, visible mould growth, and exacerbated allergies or respiratory issues. While it may be tempting to attempt to clean ducts yourself, it is important to have them cleaned professionally to ensure that all mould is properly removed. The frequency of professional duct cleaning will depend on various factors, such as the level of mould contamination and the frequency of use. However, it is generally recommended to have ducts inspected and cleaned at least once every 3-5 years. By taking these preventative measures, you can ensure that your home's air quality remains safe and healthy for you and your loved ones.