How to Safely Clean Bat Guano from Attics

The Importance of Professional Bat Guano Cleanup

Bat guano is not only unsightly but can also pose serious health risks to humans. The accumulation of bat droppings in attics can lead to the growth of harmful fungi, bacteria, and parasites, which can cause respiratory issues and other health problems. As a wildlife control professional, it is crucial to understand the proper methods and precautions for safely cleaning bat guano from attics to protect yourself and your clients.

Assessing the Situation

Before starting the cleanup process, it is essential to assess the extent of the bat guano problem in the attic. Determine the size of the affected area, the level of contamination, and whether there are any signs of active bats. This evaluation will help you determine the appropriate equipment, safety measures, and cleaning techniques required for the job.

Personal Protective Equipment (PPE)

Wearing proper personal protective equipment is crucial when dealing with bat guano. This includes a respirator mask with a HEPA filter to prevent inhalation of airborne particles, disposable coveralls, gloves, and protective eyewear. Ensure that all PPE fits properly and is in good condition before starting the cleanup process.

Containment and Ventilation

To prevent the spread of contaminants, it is important to seal off the affected area from the rest of the property. Use plastic sheeting or tarps to create a containment area and cover any vents or openings to prevent the guano particles from entering other parts of the building. Additionally, set up proper ventilation, such as exhaust fans, to ensure the removal of airborne particles during the cleanup.

Guano Removal

To safely remove bat guano from attics, it is recommended to use a vacuum cleaner equipped with a HEPA filter. This specialized filter will capture small particles and prevent them from being released into the air. Avoid using brooms or brushes, as they can cause the guano particles to become airborne, increasing the risk of inhalation.

Carefully vacuum the guano, paying attention to corners, crevices, and other hard-to-reach areas where bat droppings may have accumulated. Use gentle and controlled movements to avoid disturbing the guano further. It is important to note that guano removal should only be conducted by trained professionals to minimize the risk of exposure.

Cleaning and Disinfection

After removing the bulk of the guano, thoroughly clean and disinfect the affected area. Use a detergent solution to scrub the surfaces, ensuring that all traces of guano are removed. Pay close attention to any stains or residue left behind. Once cleaned, apply a disinfectant specifically designed to eliminate fungi, bacteria, and parasites commonly found in bat guano.

Proper Waste Disposal

Bat guano should be treated as hazardous waste due to its potential health risks. It is crucial to follow local regulations and guidelines for proper waste disposal. Double-bag the collected guano in heavy-duty plastic bags and seal them tightly. Label the bags as hazardous waste and contact the appropriate authorities or waste management companies to arrange for safe disposal.

Preventing Future Infestations

To prevent bats from reinfesting the attic, it is important to identify and seal all potential entry points. Conduct a thorough inspection of the property, including the roof, vents, and any gaps or cracks in the building’s structure. Install bat exclusion devices, such as one-way doors, to allow bats to leave but prevent their re-entry. Educate your clients on the importance of regular inspections and maintenance to ensure long-term prevention.


Cleaning bat guano from attics is a task that requires professional expertise and precautions. By following the proper procedures for assessment, personal protective equipment, containment, removal, cleaning, and waste disposal, wildlife control professionals can effectively and safely eliminate bat guano infestations while protecting the health of themselves and their clients. Remember, it is always best to consult with a professional wildlife control service to handle bat guano cleanup to minimize risks and ensure a thorough job.