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What is that smell around my air return vents?
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
Call now for same-day, eco-friendly pest control
With over 20 years of experience, Anchor Pest offers personalized, chemical-safe treatments for homes and businesses across Manchester and surrounding counties
There can be various reasons for unpleasant smells around your air return vents, and it’s essential to identify them. One of the more common issues, especially in places like Nashua, New Hampshire, is related to pest problems. Dead pests, such as mice or insects, can get trapped in the ductwork or around the vent itself, leading to a foul odor that circulates through your home.
Beyond pests, other reasons might include:
Identifying the exact source of the smell is crucial for addressing the issue effectively. It's always a good idea to investigate further, especially if you suspect pests may be involved.
Professional pest control eliminates troubles immediately. Our safe, effective treatments protect your loved ones from dangerous diseases.
A continuous, pungent smell—often described as rotten or decaying—can indicate that a pest has died within the ductwork or near the air return vent. As air flows through the system, it spreads the odor throughout your home.
Hearing unusual noises coming from inside the walls or around the vents can be a strong sign that pests are present. These sounds often accompany odors caused by nesting materials or waste buildup.
Finding pest droppings, shredded insulation, or nesting debris around or inside the vent area can signal an active infestation. As these materials accumulate, they can create strong, unpleasant smells circulating through the HVAC system.
Getting rid of pests can be a straightforward process if you follow some effective steps. Here’s a clear guide to help you eliminate pests from your home and prevent them from returning.
Identify the Pests
The first step in pest control is to identify what kind of pests you are dealing with. Common household pests include:
Seal Entry Points
Once you know what pests you have, the next step is to prevent them from entering your home. Look for:
Seal these entry points using caulk or weather stripping to keep pests out.
Maintain Cleanliness
Keeping your home clean is crucial to reducing pests. Here are some tips:
Use Traps and Baits
For existing pest problems, traps and baits can be very effective. Here’s how:
Make sure to follow the instructions on the packaging for best results.
Consider Natural Remedies
If you prefer non-toxic solutions, several natural remedies can help deter pests:
Contact a Professional
If the infestation is severe or if you’re not comfortable handling it yourself, don’t hesitate to call a pest control professional. They have the knowledge and tools to effectively eliminate pests and can also provide preventative measures to keep them from coming back.
Follow Up
After taking measures to get rid of pests, it’s important to monitor the situation. Regularly check for signs of pests and maintain your home's cleanliness. Keeping an eye on potential issues can help prevent another infestation.
Professional pest control eliminates troubles immediately. Our safe, effective treatments protect your loved ones from dangerous diseases.
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Our certified technicians eliminate pests infestations completely and permanently.
Here's what you get:
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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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