Access Points & Signs of Squirrels on the Roof As incredibly adept climbers, squirrels navigate their way through treetops seamlessly to reach heights normally unachievable by flightless animals. Individuals who suspect there are populations of squirrels on the roof should look to trees for confirmation, as the pests use ornamental lawn foliage to reach rooftops. Homeowners may also see them climbing water spouts or running along telephone wires. Damage There is no limit to what squirrels can damage with their teeth. The pests gnaw on electrical wiring once they gain access to roofs, which puts homes at risk of electrical fire. They also damage structural support beams, shingles, lead pipes, and gutters. Squirrels on the roof expose home residents to diseases, and accumulations of waste stain ceilings and spread revolting smells. Finally, the pests make a lot of scurrying and squeaking noises that may annoy individuals. Removal Homeowners may trim back tree branches to reduce the possibility of attracting squirrels to roofs. However, this is not a surefire way to guard against the pests' presence. Hiring local pest control experts is always the safest and most reliable way to remove squirrel infestations.