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Rodent or Pest Infestation in Ducts
in Greensboro, NC
Mice, rats, and insects do not need a big opening to get into your duct system. A gap the size of a quarter is enough for a mouse. In Greensboro, homes built before 1980 in older neighborhoods often have original ductwork with joints that have loosened or corroded over decades, leaving plenty of entry points. Rodent droppings and nesting material inside your ducts get blown through your home every time the system runs.
Quick Answer
Rodents and insects get into duct systems through gaps, damaged duct sections, or disconnected joints in attics and crawl spaces. Older homes in neighborhoods like Irving Park and Fisher Park have duct systems with decades of wear where these gaps are common. A cleaning removes droppings, nesting material, and the pathogens they carry. Call (743) 222-5018 as soon as you suspect pests in your ducts. This is not something to wait on.
Telltale Signs
Warning Signs to Watch For
- Scratching or rustling sounds coming from inside walls or ceilings near vents
- Foul or ammonia-like smell coming from one or more vents
- Droppings visible at or inside vent grilles
- Insect activity near vent openings
- Damaged or chewed vent covers
- Unexplained allergy or asthma flare-ups in household members
Root Causes
What Causes Rodent or Pest Infestation in Ducts?
Gaps and Holes in Older Ductwork
Duct systems in Greensboro homes built in the 1950s and 1960s used sheet metal held together with screws and tape that dries out over time. When that tape fails, joints open up and rodents in the attic or crawl space find those gaps quickly, especially during cold snaps when they are looking for warm places.
The Fix
Duct Cleaning and Joint Sealing
Technicians remove all nesting material and droppings, sanitize the duct interior, then locate and seal every open joint with mastic sealant. This removes the existing contamination and closes off the entry points.
Disconnected or Crushed Flex Duct
Flex duct is the flexible corrugated tubing used in many Greensboro homes built after 1985. Sections that run through attics can be disconnected by pest activity, settling, or someone walking through the attic. An open flex duct end is a wide-open door for any pest in that attic space.
The Fix
Flex Duct Reconnection and Cleaning
A technician reconnects or replaces the damaged flex duct section and secures it with proper clamps and mastic. The entire system is then cleaned and sanitized to remove any contamination left behind.
Self-Diagnosis
Which Cause Applies to You?
Check the signs you're observing to narrow down the likely root cause before your inspection.
| What You're Seeing | Gaps and Holes in Older Ductwork | Disconnected or Crushed Flex Duct |
|---|---|---|
| Scratching noises inside walls near vents | ||
| Droppings visible at vent grilles | ||
| Foul smell from one specific vent | ||
| Chewed or damaged vent covers | ||
| Insect activity near vents |
Free Inspection
Get a Diagnosis in Greensboro
An on-site inspection is the only way to confirm which cause applies to your property. Free, no obligation.
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