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What is that decaying smell behind drywall?
Signs Of The Pests Causing The Unpleasant Smell
How To Get Rid Of This Smell
Professional Solution That Actually Works
CEO at AnchorPest Services
Updated November 23
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With over 20 years of experience, Anchor Pest offers personalized, chemical-safe treatments for homes and businesses across Manchester and surrounding counties
The decaying smell you might notice behind drywall is most often linked to pest problems. Pests like rodents, insects, or even larger animals can find their way into your walls and, if they die there, their decomposing bodies emit a distinct odor that can be quite unpleasant. This smell can seep through small gaps and cracks in the drywall.
When we talk about decay, it involves the breakdown of organic matter. In this case, the dead insect or rodent is made up of organic materials that start to decompose, releasing gases that contribute to that foul scent. The surrounding moist conditions often help speed up this process, as humidity can increase the rate of decay.
Additionally, another possible cause for the smell could be mold growth. If there are leaks or excess moisture in your walls, mold can develop, leading to a musty odor that can be similar to the smell of decay. Mold thrives in damp, dark places, and drywall can provide an excellent hiding spot for it, particularly if there are dead pests nearby.
If you are in the Nashua area, understanding these factors is particularly important for maintaining a healthy living environment and ensuring that your home remains pest-free. [AnchorPest Services](https://www.anchorpestservices.com/areas-we-serve/nashua-pest-control/) can provide insights into common pest issues that can lead to such odors.
In summary, the decaying smell behind drywall primarily arises from pest problems, particularly from dead animals, and can be aggravated by moisture that encourages mold growth. This combination leads to the strong, unpleasant odors that can permeate your home.
Professional pest control eliminates troubles immediately. Our safe, effective treatments protect your loved ones from dangerous diseases.
The smell from decaying pests is usually strong, sour, and persistent. It often lingers around specific sections of the wall where the dead rodent or insect is located, becoming more noticeable over time as decomposition progresses.
Pests that die inside walls can cause subtle physical changes. You may notice warm spots, soft drywall, or slight bubbling, which can occur due to moisture produced during decomposition or disturbed insulation near the carcass.
An increase in pest sightings, droppings, or scratching sounds near the smelly area can signal that pests are living—and possibly dying—behind the drywall. These signs often accompany the odor of decay when pests have nested within the walls.
To eliminate the unpleasant decaying smell behind your drywall caused by pests, follow these important steps:
Identify the Source of the Smell
Before you can solve the problem, it's crucial to locate what is causing the odor. Check for:
Remove Dead Pests
If you find dead pests behind your drywall:
Clean and Sanitize the Area
Once the dead pests are removed:
Seal Entry Points
Prevent future infestations by:
Control Moisture Levels
Since moisture can attract pests and encourage odor, aim to:
Consider Professional Help
If the problem persists, it may be best to contact a pest control professional. They can:
By following these steps, you can successfully get rid of pests and the unpleasant smells they leave behind, leading to a healthier living environment.
Professional pest control eliminates troubles immediately. Our safe, effective treatments protect your loved ones from dangerous diseases.
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Trained experts identify entry points and nesting areas
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Pet and family-friendly methods used
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Targets entire colony, not just visible insects or rodents
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Long-term exclusion strategies
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Proper cleanup and sanitization
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Service warranty and follow-up visits
Complete property assessment within 24 hours
Safe, effective treatment of entire colony
Long-term exclusion and monitoring
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