Blog Post

Animal Infestation Hazards in Your Air Ducts

August 30, 2023

Most people love wildlife from afar, whether it's a stunning bird that visits your window sill or a curious raccoon that scurries across the street. However, while you might be happy to admire these creatures from a distance, few people want them setting up camp in their homes, especially in the air ducts.


Wildlife infestations in air ducts are more common than you might think, and they're actually a significant hazard for your home and health. This post explores the impact of animal infestations in air ducts and uncovers three significant hazards that could lurk behind those innocuous vents.


Spread of Allergens and Pathogens


When animals take up residence in your air ducts, they often bring with them a host of allergens and pathogens that can have a detrimental impact on your health. These can include mites, ticks, and fleas, all notorious for carrying disease.


Moreover, animal hair, dander, and even droppings can accumulate in your air ducts, each of which can trigger allergic reactions in people with sensitivities to these substances. Should these allergens circulate throughout your home via the ventilation system, they bring in significant health risks, exacerbating conditions such as asthma, allergies, and other respiratory issues.


Furthermore, the pathogens that some of these animals carry can be incredibly harmful. For instance, rodents are known to carry a variety of diseases such as Hantavirus, Salmonella, and Tularemia. If these rodents infest your air ducts, their urine and feces can dry out and become airborne, spreading these diseases throughout your home.


The same is true for bird droppings, which can carry Histoplasma Capsulatum, a fungus that leads to a serious respiratory disease known as Histoplasmosis. The mere presence of these animals in your air ducts means a constant stream of these pathogens being circulated in your home, potentially leading to serious health consequences.


While it's impossible to fully eradicate these risks, regular and thorough air duct cleaning can help reduce allergens and pathogens in your home. This is particularly important if you have pets or small children who are much more vulnerable to these hazards.


Mold and Mildew Growth


Many animals find their way into your air ducts in search of food or shelter, leaving behind moisture as they do so. When they urinate or defecate in the ducts, they add moisture to the air, which can become trapped in your ventilation system.


This high humidity level creates an ideal breeding ground for microbes like mold and mildew. And while some types of mold aren't necessarily hazardous, some varieties can produce toxins that can be incredibly harmful if you inhale them.


Moreover, these infestations can lead to the rotting and decay of ductwork insulation and other materials in your air ducts––a perfect environment for the growth of mold and mildew.


These fibrous materials allow mold to take root and spread throughout your air ducts. The result is a higher likelihood of toxins circulating around your home, with the accompanying risk of developing toxin-induced health conditions.


Structural Damage


When animals take up residence in your air ducts, they can cause significant structural damage to the system as a whole. For instance, rodents often chew through insulation material to make their nest. This compromises the insulation of your air ducts and creates a pathway for outside air to seep into your home.


Birds, on the other hand, will often make their nests out of any materials they can find, which may include sticks, twigs, and even debris from insulation material.


Such nesting material can cause significant blockages in your air ducts, leading to decreased airflow and reduced temperature control. In some cases, this can put additional strain on your HVAC system, leading to higher energy costs and potential mechanical failure.


An animal infestation in your air ducts is not something to ignore. So if you hear animal noises or smell a musty odor near your vents, call us at C J Services Inc. We can come out and inspect your air ducts, clean them thoroughly, and seal any access points to help protect your home from further infestations.

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