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Do rodents chew wires?

squirrels chewing wires in an attic and when to hire pest control

Do Rodents Chew Wires? The Eastern Gray Squirrel’s Role in Attic Damage

If you’ve ever experienced electrical issues or found suspicious chew marks on wires in your attic, you might have a rodent problem. One of the most common culprits behind chewed wires in Connecticut, Massachusetts or Rhode Island homes is the Eastern Gray Squirrel (Sciurus carolinensis). These agile rodents are not only capable of causing significant property damage, but they also pose serious safety risks, including fire hazards.


Why Do Eastern Gray Squirrels Chew Wires?

Rodents such as squirrels, mice and rats have ever-growing incisors, which means they must constantly gnaw on materials to keep their teeth from becoming too long. Unfortunately, one of their favorite materials to chew is electrical wiring. In an attic, squirrels will often target wires as they build nests, which can lead to short circuits, power outages, or even house fires. For a period of time electrical wiring was being made with soy materials which invites rodents in for a snack.


Breeding Seasons and Nesting Habits
Understanding the life cycle of Eastern Gray Squirrels can help homeowners anticipate when these rodents are most likely to invade attics and other structures.
  • Breeding Season: January–February & May–June
  • Gestation Period: 42–45 days
  • Birthing Months: March–April & July–September
  • Litter Size: 2–7 pups (most commonly 3)
  • Nest Departure: Young squirrels begin leaving the nest around 7–8 weeks old

During these breeding seasons, pregnant females seek out warm, safe locations to have their litters. This includes attics, stored outdoor items, sheds, and tree cavities. Once inside, they create nests using insulation, wood, and other materials, making themselves right at home.


The Dangers of Squirrel Infestations
If you suspect squirrels or other rodents in your attic, it’s crucial to act fast. These pests can cause numerous problems, including:
  1. Structural and Electrical Damage – Squirrels chew through wires, insulation, wood, and even drywall, leading to costly repairs.
  2. Health Risks – Squirrels carry diseases, viruses, and pathogens that can contaminate your home.
  3. Fire Hazards – Damaged electrical wiring increases the risk of house fires.
  4. Sanitation Issues – Rodents leave behind urine and droppings, which can cause foul odors and attract other pests.
  5. New Rodent Infestations – Urine and droppings create scent trails, signaling other rodents that the area is a suitable nesting site.

Effective Treatment & Prevention Options If you’re dealing with squirrels or other rodents in your attic, professional pest control is the best solution. Here’s how experts handle the problem:
  1. Trapping – Humane trapping methods help remove existing squirrels and other pests.
  2. Exclusion – Sealing entry points prevents future invasions.
  3. Baiting – In some cases, baiting may be used as a control method.
  4. Routine Inspections & Preventative Treatments – Regular monitoring ensures that your home remains rodent-free.

Call a Pest Control Professional Today If you suspect squirrels or other rodents have taken up residence in your attic, don’t wait until the damage is severe. A professional pest control company can assess the situation, remove the intruders, and implement preventative measures to protect your home.


Act now to safeguard your home from wire-chewing rodents and avoid costly repairs or fire hazards!

Call (860) 454-4004 or book a free inspection online today!

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