A dead animal under a house can lead to significant problems, primarily being the awful smell. In most causes the dead animal can be removed and area deodorized.

Odor:

  1. Foul Smell: As the animal decomposes, it releases a strong, unpleasant odor that can permeate the entire house, making living conditions uncomfortable or unbearable. This smell can last for weeks or even months, depending on the size of the animal and the ventilation in the area.

Health Risks:

  1. Disease and Bacteria: Decomposing bodies can harbor or release pathogens like Salmonella, E. coli, or parasites. If these get into the air or water system, they can pose health risks to humans and pets.
  2. Parasites: The dead animal might have fleas, ticks, or other parasites that will start seeking new hosts, potentially infesting the home.

Structural Damage:

  1. Attracting Pests: The smell of decay attracts other pests such as flies, maggots, rodents, or even larger animals like raccoons or possums looking for an easy meal. These can cause further damage by gnawing on wood, insulation, or electrical wiring while trying to reach or escape from the carcass.
  2. Corrosion and Mold: The decomposition fluids can corrode materials like wood, concrete, or metal, potentially weakening structural elements. Additionally, the moisture from decomposing flesh can lead to mold growth, which further exacerbates health and structural issues.

Property Value and Use:

  1. Reduced Property Value: The presence of a dead animal and the associated issues can significantly lower the property’s value, especially if not dealt with promptly and effectively.
  2. Inhabitability: The odor and health risks might make parts of the house, or in severe cases, the entire home, temporarily uninhabitable, requiring residents to vacate until the problem is resolved.

Environmental Impact:

  1. Soil Contamination: If the decomposition occurs directly on or in the soil, it might contaminate the ground with bacteria or chemicals from the body, which can be a concern if you’re considering gardening in that area later.

Mitigation:

  • Locate and Remove: The first step is to find the animal, which might require professional assistance if access is difficult or if the smell is overwhelming without knowing the exact location.
  • Clean and Sanitize: Once removed, the area needs thorough cleaning and sanitization to remove any remaining biological materials and odors.
  • Pest Control: Addressing any pest issues that might have arisen from the decomposition.
  • Air Purification: Using air purifiers or ozone generators (with caution) to eliminate lingering odors.
  • Preventive Measures: Once the situation is handled, consider how animals are entering your home and seal those entry points to prevent future occurrences.

Dealing with a dead animal under a house can be complex and unpleasant; often, it’s advisable to seek help from professionals who have the experience and equipment to manage the situation safely and effectively. Remember, handling dead animals can expose you to various health risks, so protective measures should be taken.