Squirrels might look harmless as they dart across your yard, but they can cause significant damage to your home without you even realizing it. These small creatures often take advantage of weak spots around your roofline, vents, or chimneys to create tiny entry points that lead straight into your attic.
Once inside, they begin their destructive work in places you rarely check. Squirrels chew through electrical wires, causing potential fire hazards, and shred insulation for nesting, which reduces its effectiveness and drives up energy costs. They also leave droppings and urine behind, which can lead to unpleasant odours and even mould or wood rot over time. Since squirrels are active and quiet at night, their presence can go unnoticed for weeks or even months. That’s why understanding their behaviour and the types of damage they cause is crucial for protecting your home.
At Skedaddle Humane Wildlife Control in Coquitlam, we specialize in helping homeowners recognize these hidden issues and take proactive steps to address them. This blog will guide you through the specific ways squirrels can secretly harm your property, so you can protect your investment and maintain a safe, secure home.
Do squirrels mess up your house?
Yes, they absolutely do. You might think these creatures are just looking for a warm place to sleep, but their nesting habits are highly destructive. They chew through tough building materials, contaminate your living spaces, and ruin the structural integrity of your roof.
You will often find that the most severe damage happens completely out of sight. Because they prefer dark, undisturbed areas like attics and wall cavities, they can live inside your house for months before you notice a problem. By the time you hear them scratching in the ceiling, they have already caused expensive problems.
You should never try to handle this damage yourself. Homeowners who attempt DIY repairs often expose themselves to harmful bacteria or get injured. Instead, our professional team can safely assess and fix the issues they leave behind.
The Tiny “Dime-Sized” Entry Point
You might look at your roof and think everything is perfectly sealed. However, squirrels only need a tiny gap the size of a dime to wedge their teeth into a vulnerable spot on your roof. Once they find a weak area, they will start gnawing on the wood, plastic, or aluminum until the hole is large enough for them to squeeze through.
You rarely notice this initial damage from the ground. A small chewed spot under a roof vent or along the fascia board looks like normal wear and tear from a distance. Because the entry point is so small, wind and rain might not even enter right away, giving you no obvious warning signs of a breach.
You will soon have a much bigger problem once they get inside. They will expand the hole just enough to squeeze through, leaving a seemingly minor exterior blemish that hides a major infestation. Our experts know exactly where to look for these tiny, hidden entries along your roofline.
Ruined Attic Insulation
Your attic insulation plays a big role in keeping your home comfortable and energy-efficient. When pests get into your attic, they can tear up and ruin the insulation, making it less effective. This damage can lead to higher energy bills and even more serious problems if it isn’t fixed quickly. Here are a few specific attic insulation damages caused by squirrels:
- Flattened and Torn Materials: You rely on your attic insulation to keep your house warm in the winter and cool in the summer. Squirrels tear up and flatten attic insulation to build their nests. They gather the fluffy material into large piles, which destroys its ability to hold heat. This drastically reduces the energy efficiency of your property without you ever seeing it.
- Soiled and Contaminated Spaces: You will also face severe contamination issues in your attic. These creatures use your insulation as their personal bathroom, soaking the material with urine and feces over time. This creates a massive biohazard right above your ceiling. You should never attempt to clean these droppings yourself, as it requires professional safety gear and training.
- Increased Energy Bills: You might notice your heating and cooling bills slowly creeping up. Because the insulation is flattened and wet, your HVAC system has to work much harder to maintain a comfortable temperature. This hidden damage forces you to pay higher utility costs every single month. Our team can safely remove the ruined material and restore your attic to normal.
Chewed Electrical Wiring
Chewed electrical wiring is a serious issue that can lead to dangerous and costly problems in your home. When pests gnaw on wires, it can cause damage that’s more than just an inconvenience. Below are three major concerns to watch out for if electrical wiring has been stripped or compromised by squirrels:
- Stripped Protective Coatings: You have miles of electrical wiring hidden behind your walls and above your ceilings. Squirrels have continuously growing teeth that compel them to gnaw constantly on whatever they can find. They can easily strip the protective rubber coating off electrical wiring hidden inside your walls. This exposes the bare copper wires to the surrounding wood and insulation.
- Severe Fire Hazards: You are at a high risk of a house fire when bare wires are exposed. The exposed wires can easily spark, and the dry, nested insulation provides the perfect fuel for a fire. This creates a severe and invisible fire hazard that puts your entire family in danger. You will not know this risk exists until a professional inspects your attic.
- Power Outages and Shorts: You might start experiencing strange electrical issues in certain rooms. Flickering lights, dead outlets, or tripping circuit breakers can all be caused by chewed wires. Instead of calling an electrician first, you might need to check for squirrel activity. Our professionals can identify where the chewing is happening and stop the squirrels from doing more harm.
Plumbing and Structural Roof Damage
You might not realize that these creatures will chew on almost anything, including your plumbing system. They will chew through plastic plumbing vents, leading to hidden roof leaks that allow water to slowly seep into your ceiling. This creates water damage that mimics a failing roof, prompting you to spend money on the wrong repairs.
You also face serious structural issues when they target the wood holding up your roof. They can compromise the structural integrity of your roof by chewing on essential wooden support beams and trusses. Over time, this constant gnawing weakens the wood, making it unsafe and expensive to replace.
You cannot afford to ignore this type of damage. Water leaks lead to mould growth, and weakened support beams can cause your roof to sag. Our technicians understand how to spot these hidden structural dangers and will secure the area to prevent any further destruction.
Hidden Odours and Biohazards
Hidden odours and biohazards can create serious problems in your home. Foul smells might be a sign of mould and mildew growth, which thrives in damp, dark areas. These hidden issues can also lead to harmful bacteria and parasites spreading, putting your health at risk. It’s important to address these problems quickly to keep your home safe and clean.
- Foul Smells in the Home: You might start noticing a strange, unpleasant scent drifting through your hallways. Their urine and feces soak into your insulation and ceiling drywall over time. The foul odour might be dismissed as an old house smell until the accumulation reaches a critical level. Once the smell is noticeable in your living space, the contamination in the attic is usually severe.
- Mould and Mildew Growth: You could also be dealing with hidden mould issues. The moisture from their urine creates the perfect damp environment for mould spores to thrive on your wooden beams. This mould can spread quickly through your attic and release spores into the air you breathe. You should rely on our professionals to safely handle these dangerous biohazards.
- Harmful Bacteria and Parasites: You must remember that squirrels carry dangerous diseases, bacteria, and parasites like fleas and ticks. These parasites can travel from the squirrel’s nest down into your living spaces. You should never touch any nesting materials or attempt to clean the area with homemade spray solutions. Always call us right away so we can safely sanitize the space.
Squirrel Damage in Coquitlam
You live in a beautiful area, but Coquitlam’s lush forests and greenbelts make it an ideal environment for squirrels. The cold, wet winters and mild summers drive these creatures to seek warm, dry shelter inside local properties. The heavy rainfall in the region means that any chewed entry holes will quickly lead to severe water damage and mould growth.
You will find that the building styles in our area, with their intricate rooflines and multiple vents, offer plenty of weak spots for these creatures to exploit. Neighbourhoods like Westwood Plateau and Summit View are particularly vulnerable because they are so close to natural habitats. The unique climate forces squirrels inside earlier in the fall, giving them more time to cause hidden destruction.
You need a local expert who understands these specific regional challenges. Our technicians know exactly how the local weather impacts squirrel behaviour and building materials. We tailor our approach to protect Coquitlam properties from both the animals and the harsh coastal climate.
Squirrel Removal and Prevention with Skedaddle
You need a permanent solution when these creatures invade your property. Skedaddle Humane Wildlife Control provides expert services to safely remove squirrels and prevent them from returning. Our technicians begin by inspecting your attic and exterior, checking for chewed wood, damaged wiring, and displaced insulation.
You do not have to worry about the squirrels being harmed during our process. We do not use live trapping or relocation methods. Instead, we use specialized one-way doors that allow the squirrels to leave the house safely to forage for food, but prevent them from getting back inside.
You can rest easy knowing your home is secure. After the squirrels have exited, we install industrial-grade, chew-proof screening and materials over vulnerable entry points like roof vents and plumbing stacks. This guaranteed exclusion ensures they cannot re-enter, and our team will safely handle the dangerous cleanup process for you.
Frequently Asked Questions
Why do they chew on everything in my attic?
Rodents chew because their teeth never stop growing throughout their lives. They need to gnaw on hard materials like wood, plastic, and electrical wires to keep their teeth trimmed down. This chewing can damage insulation, support beams, and important wiring inside your attic. Our professional removal helps stop this destruction before it becomes a bigger safety problem.
How small of a hole can they fit through?
Rodents can squeeze through very tiny openings around your home. In many cases, they only need a gap the size of a dime to get inside. If their head fits through the hole, the rest of their body can usually follow. Our professionals carefully inspect your home and seal these small entry points to help keep squirrels out.
Are the droppings dangerous to my family?
Yes, rodent droppings can be dangerous to your health and should be taken seriously. The droppings may contain harmful bacteria and viruses that can spread through the air when disturbed. Breathing in contaminated dust can lead to respiratory problems and other health concerns. Our professional cleanup services safely remove the waste and properly sanitize the affected area.
Can they cause a fire in my house?
Yes, rodents are a common cause of hidden electrical fires in homes. They often chew through the protective coating around electrical wires while trying to wear down their teeth. Exposed wires can spark, overheat, and potentially start a fire inside your walls or attic. Our professional inspections can help find this damage early and reduce the risk to your home.
Will they leave on their own in the summer?
No, rodents usually will not leave a safe nesting area on their own. If they find warmth, food, and shelter in your attic, they are likely to stay there year-round. Many rodents also raise their babies inside attics, which can quickly increase the size of the infestation. Our professional removal is the safest and most effective way to fully solve the problem.
Notice Squirrel Damage at Home? Skedaddle Has Got Your Back
Taking action against squirrels in your home or business is crucial to avoid further damage. Squirrels can create serious issues, such as chewing through wires or tearing apart insulation, which can lead to fire hazards or higher energy bills. Ignoring the problem might seem easier at first, but the longer squirrels stay on your property, the harder and more costly it becomes to fix the damage.
At Skedaddle Humane Wildlife Control in Coquitlam, we understand how important it is to keep your property safe and free of unwanted guests. That’s why our team uses humane, effective solutions to remove squirrels and ensure they don’t come back. We’re here to make the process simple and stress-free for you while protecting both your home and the squirrels involved.
Don’t wait until the problem grows worse. Acting quickly can save you time, money, and frustration. Contact us today to request an estimate and learn how we can help you take back control of your space. Trust our professional team to provide the reliable, long-lasting protection you need.

