Signs of Squirrels in Your Attic You Shouldn’t Ignore

If you're hearing scratching, scurrying, or thumping above your ceiling, especially during the day, squirrels could be the cause. The clearest signs of squirrels in your attic include daytime noises, chewed openings around the roofline, small droppings near nesting areas, and nests made from leaves, twigs, and shredded insulation.

Squirrels don't just make noise. If they stay inside, they chew wiring, damage insulation, and turn a small opening in your soffit into a costly repair. Squirrel removal is important for preventing these problems and protecting your home from further damage.

This guide covers signs of squirrel activity and explains how to tell squirrels apart from other wildlife, what to do if you find them, and when to call a professional.

Signs of Squirrels in Your Attic

1. Daytime scratching and scurrying. One of the most common signs of squirrels is noise during daylight hours as they move around the attic or leave and return through an entry point.

2. Rolling or bumping sounds. Squirrels store food and may drag or roll acorns and nuts across the attic floor, creating sounds that seem like something is rolling or dropping overhead.

3. Chewing sounds. Squirrels constantly chew wood, wiring, and other materials. Their front teeth keep growing, so gnawing helps wear them down. This can damage your home and create a potential fire hazard if wiring is affected.

4. Chewed entry points around the roofline. Look for gnawed openings near soffits, fascia boards, roof edges, gable vents, or chimney flashing. Squirrels can enlarge small gaps to get inside your attic.

5. Small, cylindrical droppings. Squirrel droppings are small and cylindrical, with rounded or slightly tapered ends. You may find them near nesting areas or places where squirrels spend time.

6. A visible nest. Squirrels build round nests, called dreys, using leaves, twigs, insulation, and other soft materials. These nests are often tucked into corners or placed near rafters.

7. Tunneling through insulation. If you can safely access the attic, look for torn, flattened, or missing sections of insulation. Squirrels often pull insulation apart to make nests or bedding.

8. A strong ammonia-like odor. Urine and droppings can build up around an active nest. A persistent sharp or stale smell, especially with staining on the ceiling below, can indicate ongoing squirrel activity.

9. Squirrel activity outside your home. Seeing more squirrels around your yard, roof, or bird feeder can be a clue. If you see one disappear through a gap near the eaves, that's an even stronger sign that squirrels are getting inside.

10. Water stains or damage near entry holes. When squirrels create openings in your home's exterior, rain can enter through the same gaps. This can lead to water stains, damp insulation, or soft areas on the ceiling.

11. Greasy marks or rub marks near entry points. Squirrels repeatedly use the same routes to enter and leave an attic. Look for dirt, fur, or dark rub marks around frequently used openings.

What Are the Signs of Squirrels in Walls?

If squirrels are inside your walls, you may notice:

• Scratching or scurrying: Squirrels moving through wall cavities often create noticeable scratching, running, or chewing sounds.
• Daytime noise: Activity during daylight hours is more consistent with squirrels than many other attic wildlife species.
• Chewing sounds: Repeated gnawing can indicate squirrels are trying to create or enlarge an opening.
• Movement between walls and attic: You may hear sounds traveling from the attic into the walls or ceiling.
• Entry-point damage: Gnaw marks around soffits, vents, roof edges, or other exterior gaps can reveal how squirrels got inside.
• Unusual odors: A persistent animal or urine smell can develop if a squirrel has been using the wall cavity for some time.

Important: Don't seal an opening while a squirrel may still be inside. You could trap the animal in the wall or separate a mother from her young.

How Can You Tell If You Have Flying Squirrels?

The time of day is one of the best clues. Flying squirrels are primarily active at night, so repeated scratching or scurrying after dark can point to their presence.

Look for these signs of squirrels:

• Nighttime activity: Sounds coming from the attic after dark are a key clue.
• Light scratching or scurrying: Their movement can sound quieter than the heavier activity of larger squirrels.
• Small entry gaps: Flying squirrels can use relatively small openings around roofs, soffits, vents, and other exterior areas.
• Nesting material: Look for nests made from soft materials in sheltered attic spaces.
• Repeated activity: Hearing movement in the same area night after night suggests an animal is regularly using the space.

Keep in mind: Nighttime attic noises don't automatically mean flying squirrels. Other nocturnal wildlife can produce similar sounds, so look for multiple signs before identifying the animal.

What Are the Signs of a Rabid Squirrel?

Rabies is rare in squirrels, but unusual behavior should always be taken seriously. Warning signs can include:

• Unprovoked aggression
• Disorientation or confusion
• Difficulty walking or moving normally
• Weakness or paralysis
• Unusual behavior that is clearly different from normal squirrel activity

A squirrel being active during the day does not by itself mean it has rabies. Sick, injured, or disturbed squirrels can also behave unusually.

If a squirrel appears sick or aggressive, don't approach or handle it. Keep children and pets away and contact local animal control or a wildlife professional for guidance.

What to Do Once You've Spotted These Signs

Don't seal the entry point yet

Closing the hole while the squirrel is still inside can trap it in the attic or wall. This can lead to a dead animal, bad odors, and an even bigger cleanup problem.

Check whether the signs are recent

Fresh droppings, new chew marks, and recent daytime noise suggest active squirrel activity. Old, dry droppings and no recent sounds could mean the animal has already left.

Check for young squirrels

If you suspect a nest, don't block the entry point until you're sure no young squirrels are inside. A mother may leave the attic to find food and return to the nest later.

Choose between DIY and professional help

One-way exclusion doors can work when there is a single animal and an easy-to-reach entry point. Multiple openings, squirrels inside walls, or flying squirrels can require a more thorough inspection and removal plan.

Repair the damage after removal

Chewed wiring, damaged insulation, and the original entry hole should all be fixed. Otherwise, the same opening can become an easy way for another squirrel or other wildlife to get inside.

Is It Legal to Trap Squirrels Yourself in Houston?

Texas has specific rules for live-trapping nuisance squirrels. Under the Texas Administrative Code, the state allows landowners or their agents to live-trap and relocate nuisance squirrels under specific conditions, but local rules and the state's trapping requirements still apply.

The trap must not injure the animal and must display the trapper's name, address, and phone number. The squirrel must be released within 24 hours, and you must have written permission from the property owner where it will be released before transporting the animal.

For Houston-area homeowners, keep these points in mind:

• You need permission for the release site: You can't simply release a trapped squirrel in a public park or on someone else's property without the required permission.
• Check local rules before trapping: State rules apply, but local requirements can also affect how wildlife is handled. If you're unsure, check current Houston and Harris County requirements before setting a trap.
• Use a humane trap: Texas rules require traps used for this purpose to be designed not to physically injure squirrels and require reasonable precautions for humane treatment.
• Don't trap before checking for young: If a squirrel is nesting in your attic, removing the adult without checking for dependent young can leave them behind. A professional wildlife inspection can help determine whether a nest is active before removal.

When Should You Call a Professional for Squirrel Removal?

DIY squirrel removal can work when the problem is simple, and you can safely identify the entry point. But if trapping or exclusion doesn't solve the problem, it's time to bring in a professional.

Call a wildlife removal professional if:

• The squirrel won't leave: If you've tried a legal, humane removal method and the squirrel remains in the attic, don't keep changing traps or blocking openings without knowing where the animal is.
• You can't find the entry point: Squirrels can enter through small gaps around soffits, vents, rooflines, and other hard-to-reach areas. Finding and fixing every access point is often the hardest part of removal.
• You suspect babies are inside: If you hear smaller sounds or find a nest, avoid trapping the adult until you know whether dependent young are present.
• There are multiple squirrels: More than one animal can mean an active nest or several entry points, making DIY removal more difficult.
• The squirrels are inside your walls: Removing an animal from a wall cavity can require a different approach than removing one from an open attic.
• You've found damaged wiring or insulation: Inspect and repair chewed electrical wires and heavily damaged insulation after the animals are removed.
• The problem keeps coming back: If squirrels return after removal, the original entry point may not have been properly sealed, or another opening may be available.

A professional can inspect the attic and exterior, identify how the squirrels are getting inside, check for nests or young, remove the animals safely, and recommend repairs or exclusion measures to help prevent another infestation.

If you've tried to handle the problem yourself and still hear scratching, find new damage, or see squirrels entering your home, contact SkeeterCide for help with your wildlife problem and request a free quote.

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