Do Squirrels Cause Damage. Like rabbits, squirrels can cause severe damage to landscaping and plants in several ways. If the squirrels in your area are accustomed to people and pets and have become rather bold, that's a potential threat to your kitty's safety.
However, it does cause ensuing damage such as if a fire was caused, or if a pipe opened and caused water damage.
Plus, if squirrels do have a litter of kits, they might start teething on the outer core or covering of the wires. They chew through electrical wires, water lines made of pvc, and your squirrels have also been known to chew through pvc piping. Grey squirrels can cause damage when they enter roof spaces of houses and buildings. A squirrel paid the ultimate price for his curiosity, but not before causing $300,000 in damages to a $1.9 million community center in indiana.