Squirrels can cause damage or become a nuisance to the homeowner when they use buildings for nesting sites and food storage or when they gnaw into attics to take up residence. They can also move into spaces between walls and floors. Squirrels often gain access through vents, broken windows, knotholes, construction gaps under eaves and gables, and occasionally, the chimney and fireplace provide an entry route. Control methods include Live Trapping, Exclusion, Pruning Trees back away from your home or building, And refraining from feeding.