If you’re hearing scratching, scurrying, or rolling sounds above your ceiling in the early morning, you’ve got company you didn’t invite. Squirrels in attic spaces are one of the most common calls we get at Gotcha Wildlife Removal. Most homeowners start with repellents, move to traps, and then hope the problem solves itself. After removing squirrels from hundreds of GTA attics over the past 10 years, we’ve seen what works and what doesn’t. Those quick fixes rarely solve the problem for good. What actually works is exclusion done properly from the start.
How Do Squirrels Get Into Your Attic?
Squirrels are relentless chewers with incredibly strong teeth. They don’t need a door left open. They’ll create their own entry points by gnawing through:
- Roof vents: Plastic and aluminum vents are easy targets for determined squirrels.
- Soffits and fascia: Gaps where your roof meets the walls are prime entry spots, especially if the wood is already weathered or damaged.
- Gable vents: Decorative vents on the side of your house are often unscreened or made of flimsy materials.
- Roof edges and shingles: Squirrels will chew right through shingles and wood to get into your attic, especially around roof valleys and edges.
- Construction gaps: Where different sections of your roofline meet, there are often small gaps that squirrels exploit and expand.
Squirrels are looking for a warm, dry, safe place to nest, especially during breeding season (spring and fall). Your attic checks all the boxes. Once one squirrel finds a way in, others often follow.
Signs You Have Squirrels in Your Attic (Not Rats or Raccoons)
Not sure what you’re dealing with? Here’s how to tell if it’s squirrels in the attic versus other animals:
- Daytime activity: Squirrels are diurnal (active during the day). If you hear scratching or scurrying in the early morning or late afternoon, it’s likely squirrels. Rats and mice are nocturnal.
- Fast, light scurrying sounds: Squirrel movements are quick and sporadic. Raccoons are much heavier and make thumping sounds.
- Chewed entry holes: Squirrels leave round or oval chew marks about 2-4 inches wide around entry points. The edges look freshly gnawed with visible tooth marks.
- Acorn shells and debris: If you find piles of acorn shells, nut casings, or nesting materials (shredded insulation, leaves, twigs) in your attic, that’s a squirrel nest.
- Droppings: Squirrel droppings are slightly larger than rat droppings, oblong-shaped, and often scattered rather than concentrated in one area.
- Visible squirrels on your roof: If you see squirrels running along your roofline or repeatedly entering the same spot, you’ve identified the entry point.
If these signs don’t quite match what you’re experiencing, don’t worry. We handle all types of wildlife removal across the GTA. Hearing heavy thumping at night? You’ll need our raccoon removal services. Nocturnal scratching with smaller droppings? That calls for professional rat removal. Whatever’s moved into your attic, we’ve got you covered.
What Kind of Damage Can Squirrels Do Up There?
Squirrels might seem harmless, but the damage they cause is serious and expensive:
- Chewed electrical wiring: Squirrels gnaw constantly to keep their teeth sharp. When they chew through wiring, it creates a legitimate fire hazard.
- Destroyed insulation: Squirrels shred insulation to build nests, reducing your home’s energy efficiency and increasing heating costs.
- Contaminated attic space: Squirrel urine and droppings carry bacteria and parasites. The smell alone can be overwhelming.
- Structural damage: Over time, squirrels can chew through wood beams, roof decking, and support structures.
- Secondary pest problems: Squirrels bring fleas, mites, and ticks into your attic that can spread throughout your home.
The longer squirrels stay in your attic, the worse the damage gets. What starts as a small entry hole can turn into thousands of dollars in repairs.
Why Squirrel Repellents and Ultrasonic Devices Don’t Work
Walk into any hardware store, and you’ll find shelves full of squirrel repellent products: sprays, granules, ultrasonic plug-ins, predator urine, strobe lights. The problem? None of them delivers lasting results.
- Ultrasonic devices: Squirrels quickly adapt to the sound and ignore it. There’s no scientific evidence these work beyond a few days, if at all.
- Scent repellents: Sprays and granules might deter squirrels temporarily, but once the scent fades (which happens fast in an attic), they’re back. Plus, you can’t spray your entire attic every week.
- Predator urine: Same problem. The scent dissipates quickly, and squirrels learn there’s no actual predator present.
- Strobe lights and noise machines: These might annoy squirrels briefly, but they won’t leave a safe nesting site just because of some flashing lights.
The only thing that actually works is physically excluding them from the space and sealing every entry point. Everything else is just a temporary band-aid that wastes your money.
Do Squirrels Ever Leave the Attic on Their Own?
This is one of the most common questions we get, and the short answer is: not reliably, and not permanently.
Squirrels leave your attic daily to forage for food, but they always come back to their nest. They’re creatures of habit and won’t abandon a safe nesting site just because you want them to. Even if a squirrel does move out on its own (rare), the entry point remains open. That means new squirrels, raccoons, or other wildlife will move right in.
Waiting for squirrels to leave on their own is a gamble that almost never pays off. Meanwhile, they’re causing more damage every day.
One-Way Exclusion Doors: How Professional Removal Actually Works
Here’s how professional squirrel removal works, and why it’s the only method with a lasting track record:
Step 1: Full Inspection
Our technicians inspect your entire roofline, attic, soffits, vents, and fascia to identify every entry point. Squirrels rarely use just one hole, so missing even one entry means they’ll get back in.
Step 2: Install One-Way Doors
We install one-way exclusion doors over the main entry points. These devices allow squirrels to leave the attic to forage but prevent them from getting back in. It’s completely humane and doesn’t harm the animals.
Step 3: Seal All Other Entry Points
While the one-way door is active, we seal every other gap, hole, and vulnerability with heavy-duty materials like galvanized steel mesh and metal flashing. Squirrels can’t chew through these.
Step 4: Monitor and Remove the Door
After a few days, once we’re certain all squirrels have left, we remove the one-way door and seal that final entry point permanently.
Step 5: Cleanup and Prevention
We remove nesting materials, droppings, and contaminated insulation. Our decontamination services ensure your attic is safe and sanitized. We also provide advice on squirrel-proofing your home to prevent future invasions.
This process is backed by our 3-year guarantee on all work and materials. If squirrels get back in through our repairs, we come back and fix it at no charge.
How to Seal Squirrel Entry Points So They Can’t Come Back
Squirrel-proofing your home means using the right materials in the right places. Here’s what usually does the trick:
- Use galvanized steel mesh: Cover roof vents, gable vents, and any gaps with 16-gauge or heavier steel mesh. Squirrels can’t chew through it.
- Install metal flashing: Reinforce roof edges, fascia boards, and soffit intersections with metal flashing to block access.
- Cap your chimney: An uncapped chimney is an open invitation. Install a heavy-duty chimney cap with mesh sides.
- Trim tree branches: Keep branches at least 6-8 feet away from your roofline. Squirrels are excellent jumpers.
- Replace damaged wood: If squirrels have already chewed through soffits or fascia, replace the damaged sections with new, reinforced materials before sealing.
- Seal construction gaps: Use steel wool and caulk to fill small gaps where different roof sections meet.
DIY sealing can work if you’re handy and have roof access, but most homeowners miss secondary entry points. Our exclusion services ensure every vulnerability is addressed the first time.
How Much Does Squirrel Removal Cost?
Squirrel removal cost varies based on several factors:
- Number of entry points: More holes mean more labor and materials to seal them all.
- Roof height and accessibility: Two-story or steep roofs require more safety equipment and time.
- Extent of damage: If insulation needs replacing or wiring needs repair, costs increase.
- Cleanup needs: Heavily contaminated attics require more extensive decontamination work.
On average, professional squirrel removal ranges from $300 to $800 for most homes, but complex jobs can cost more. The key is that professional removal solves the problem permanently. Trying to save money with DIY traps or repellents usually means you’ll pay more in the long run when those methods fail and the damage worsens.
At Gotcha Wildlife Removal, we offer free inspections so you know exactly what you’re dealing with before committing to anything.
When to Call a Wildlife Removal Professional
You should call a professional if:
- You hear scratching or scurrying in your attic regularly
- You’ve found entry holes or visible damage to your roof, soffits, or vents
- You’ve tried DIY methods (traps, repellents) and squirrels keep coming back
- You see squirrels repeatedly entering the same spot on your roof
- You smell strong odors coming from your attic
- You’re concerned about chewed wiring or fire hazards
- You have squirrels during breeding season (spring or fall) and want to avoid trapping babies
At Gotcha Wildlife Removal, we’ve been serving the GTA for over 10 years with humane, effective squirrel removal. We understand the urgency of your situation and can often have a technician on-site the same day.
If you’re not sure whether you need professional help, check out our guide on how to choose the right wildlife removal company to understand what separates qualified professionals from unlicensed operators.
Don’t let squirrels take over your attic. Contact us today for a free inspection and let our experienced team handle the problem professionally.
Frequently Asked Questions
Is it legal to trap and relocate squirrels yourself?
Regulations vary by location, and there are often specific rules around trapping and relocating wildlife. In many areas, relocating squirrels can spread disease to new populations or cause the animals to die in unfamiliar territory. At Gotcha Wildlife Removal, we handle all squirrel removal in compliance with local regulations using humane exclusion methods that don’t require relocation.
What time of year are squirrels most active in attics?
Squirrels are most active in attics during their two breeding seasons: late winter to early spring (February to April) and late summer to early fall (August to September). These are the times when females are looking for safe nesting sites to raise their young. However, squirrels can invade attics any time of year, especially during cold weather when they’re seeking warmth.
Can squirrels in the attic cause a house fire?
Yes. Squirrels constantly gnaw to keep their teeth from overgrowing, and electrical wiring is a common target. When they chew through wire insulation and expose bare wires, it creates a serious fire hazard. This is one of the most dangerous aspects of having squirrels in your attic and a major reason why quick removal is so important.
