
Biohazard Cleanup & Waste Removal
The animal may be gone. The mess it left behind may not be.
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Wild animals can leave behind urine, feces, nesting material and other contamination in attics, crawl spaces and other areas of a home. In some cases, the mess is relatively isolated. In others, waste and urine can contaminate insulation and building materials, create persistent odors, and require more extensive cleanup.
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Biohazard cleanup and waste removal can involve more than simply removing visible droppings. The affected area should be evaluated to determine where contamination is present, what materials can be cleaned and sanitized, and whether damaged or contaminated materials should be removed.
Critter Cleanup helps homeowners throughout Long Island, NYC and beyond address the mess wildlife leaves behind—from waste removal and sanitization to contaminated insulation, odor treatment and restoration of affected areas.
What Kind of Animal Waste Is in My Home?
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Different animals leave behind different types and amounts of waste, and where that waste is found can often provide clues about the animal responsible.
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Raccoons may repeatedly use the same area for feces, creating what are commonly called raccoon latrines. In an attic, accumulated waste and urine can contaminate insulation and surrounding materials.
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Mice and rats can leave large numbers of small droppings throughout the areas they travel and nest. Waste may be scattered across attic insulation, along walls, inside cabinets or in other concealed spaces.
Household sprays can clean a surface.
They can’t remove urine-soaked insulation or contamination that has worked its way into porous building materials.
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Effective animal waste cleanup starts with removing the source, then cleaning, sanitizing and restoring what was affected.
Is Animal Waste Dangerous?
Animal waste should be treated carefully, particularly when it has accumulated indoors or contaminated porous materials.
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Droppings, urine and nesting material from some wildlife can contain bacteria, parasites, fungi or other organisms that may present health risks. Disturbing dried waste can also release contaminated dust and particles into the air.
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The level of concern depends on the animal, the amount of waste, where it is located and how long it has been there. Not every animal dropping represents an emergency, but significant accumulations or contaminated insulation should not be treated like ordinary household dirt.
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For larger or more widespread contamination, Critter Cleanup can help remove affected material while limiting unnecessary exposure and determining whether additional cleaning, sanitization or restoration is appropriate.
Read more about animal removal, odor removal, and property restoration.
What About The Smell?
Sometimes the first sign of an animal problem isn't a noise or a dropping. It's the smell.
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Animal urine can soak into insulation, wood and other porous materials. Feces, nesting material and deceased animals can also produce odors that remain even after the visible source has been removed.
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Simply masking the smell with fragrance or deodorizer doesn't address material that remains contaminated. Effective odor treatment starts with identifying and removing the source whenever possible, followed by cleaning, sanitization and treatment of affected materials.
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When odors have penetrated porous materials or spread beyond the immediate area, additional remediation may be necessary.

Critter Cleanup safely and effectively rids homes of animal waste and odor throughout Nassau and Suffolk Counties, NYC, Westchester, New Jersey, and the entire Tri-State Area.
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Bats can create accumulations of droppings, known as guano, beneath areas where they roost. Larger or long-term colonies can leave significant amounts of waste behind.
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Squirrels may leave droppings, urine and nesting material in attics and other enclosed spaces. Their activity can also disturb or contaminate insulation.
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Birds nesting in vents, attics, chimneys or other protected areas may leave behind droppings, feathers and nesting material that require removal after the birds are gone.
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Identifying the animal is useful, but the amount and location of the contamination are often more important when determining what cleanup is necessary. A few isolated droppings are very different from months of waste and urine spread through attic insulation.