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Squirrels in the Attic in New Jersey: Signs, Risks, and What to Do

By Brandon Stein, NJDEP-Licensed Wildlife Control Operator · 4 min read

Short answer: Squirrels get into New Jersey attics because attics offer warmth, shelter, and protection for raising young. Daytime scratching, chewing sounds, and roof or soffit damage are the classic signs. The fix is a professional inspection, humane removal, and sealing every entry point so the problem does not come back.

Why Do Squirrels Get Into Attics?

Attics provide many of the things squirrels need to survive and raise their young.

A typical attic offers:

  • Protection from predators
  • Shelter from rain, snow, and wind
  • Warmth during colder months
  • Quiet nesting areas

Eastern gray squirrels, the species most commonly found throughout New Jersey, are excellent climbers and can access roofs by using nearby trees, utility lines, fences, and even downspouts. Once they find a small opening along the roofline or soffit, they may enlarge it by chewing and gain access to the attic.

In neighborhoods throughout Cherry Hill, mature trees and established residential areas often create ideal conditions for squirrel activity around homes.

Common Signs of Squirrels in the Attic

Many homeowners hear squirrels before they ever see them.

Scratching and Running Sounds

One of the most common signs is the sound of movement overhead. Squirrels are typically active during the day, especially in the early morning and late afternoon.

If the noises occur primarily during daylight hours, squirrels may be more likely than nocturnal wildlife such as raccoons.

Chewing Noises

Squirrels constantly gnaw to keep their teeth from overgrowing. Homeowners sometimes hear chewing sounds coming from attic spaces, walls, or roof areas.

Visible Roof or Soffit Damage

Squirrels often enter through:

  • Roof vents
  • Soffits
  • Fascia boards
  • Gable vents
  • Roof intersections

Small openings may become larger over time as squirrels chew their way inside.

Nesting Materials

During an attic inspection, nesting materials such as leaves, insulation, twigs, and shredded debris may indicate squirrel activity.

Squirrel Sightings Near the Roofline

Repeatedly seeing squirrels climbing on the roof or entering the same area of the home can indicate an active entry point.

What Risks Do Squirrels Pose Inside an Attic?

While squirrels are not typically aggressive toward homeowners, they can cause several property-related concerns when they establish themselves indoors.

Damage to Building Materials

Squirrels may chew wood, roof components, soffits, vents, and insulation while creating or expanding access points.

Electrical Hazards

One of the more serious concerns is chewing on electrical wiring. Damaged wiring can require repairs and should be evaluated by a qualified professional if squirrel activity is suspected.

Insulation Damage

Nest building and animal activity can compress, contaminate, or displace attic insulation, potentially reducing its effectiveness.

Ongoing Wildlife Problems

If entry points remain open after squirrels leave, other wildlife may eventually use the same openings to access the structure.

Why Season Matters in New Jersey

The timing of squirrel activity often influences how a wildlife problem should be handled.

In New Jersey, squirrel nesting activity commonly increases during spring and again later in the year. Female squirrels may use attics as protected locations for raising young.

This is one reason professional inspections are important. Wildlife specialists can determine whether young animals may be present and recommend an appropriate removal strategy.

The approach used for an attic with a single adult squirrel may differ from one containing a nest.

What Property Owners Should Avoid

When homeowners discover squirrels in the attic, it can be tempting to try a quick solution.

Avoid:

  • Attempting to handle squirrels yourself
  • Using poisons
  • Blocking entry points without confirming animals have exited
  • Disturbing active nests
  • Performing roof repairs before the wildlife issue has been properly assessed

Improper removal efforts can lead to trapped animals, additional property damage, or recurring wildlife activity.

When Should You Call a Professional?

It is a good idea to contact a wildlife professional if:

  • You hear persistent attic noises
  • You notice roof or soffit damage
  • You see squirrels entering the home
  • You suspect a nest may be present
  • Previous attempts to stop the problem have not worked

Professional wildlife inspections help identify the species involved, locate entry points, assess damage, and determine the most appropriate solution.

How Acorn Wildlife Can Help

Acorn Wildlife provides professional squirrel removal and wildlife control services for homeowners throughout Cherry Hill, NJ and surrounding communities.

Our team can:

  • Inspect your property for squirrel activity
  • Identify entry points and nesting areas
  • Develop a humane removal strategy
  • Recommend exclusion and prevention measures
  • Help reduce the likelihood of future wildlife intrusions

Every property is different, which is why a thorough inspection is often the first step toward resolving the issue effectively.

Why Squirrel Problems Are Common in Cherry Hill

Cherry Hill's established neighborhoods, mature trees, parks, and wooded corridors create excellent habitat for squirrels.

Homes with overhanging tree branches, aging roof components, or small gaps around vents and soffits may be especially vulnerable to wildlife entry.

Seasonal weather changes can also encourage squirrels to seek protected indoor spaces, particularly during nesting periods and colder months.

Contact Acorn Wildlife for Squirrel Removal in Cherry Hill, NJ

If you suspect squirrels have entered your attic, don't wait for the damage to grow worse. Acorn Wildlife provides professional wildlife inspections and squirrel removal services throughout Cherry Hill, NJ.

Contact Acorn Wildlife today to schedule an inspection and learn the safest, most effective way to address squirrels in your attic.

How do I know if I have squirrels in my attic?

Common signs include scratching or running noises during the day, chewing sounds, visible roof damage, nesting materials, and frequent squirrel activity around the roofline.

Are squirrels active at night in the attic?

Squirrels are generally most active during daylight hours. If attic noises primarily occur at night, another wildlife species may be involved.

Can squirrels damage electrical wiring?

Yes. Squirrels are known to chew on various materials, including electrical wiring, which can result in costly repairs.

Why do squirrels choose attics?

Attics provide shelter, warmth, and protection from predators, making them attractive locations for nesting and raising young.

Should I seal the hole where squirrels are entering?

Not until the situation has been professionally assessed. Sealing an active entry point while animals remain inside can create additional problems.

Are squirrel problems common in Cherry Hill, NJ?

Yes. Cherry Hill's mature trees, residential neighborhoods, and abundant wildlife habitat make squirrel intrusions a common issue for homeowners.

Related: Squirrel Removal in South Jersey · Why Squirrels Get Into NJ Homes Before Fall · Squirrel Baby Season in New Jersey