Rats can invade homes in search of food or shelter. Their presence  can be associated with poor sanitation but rats can also be attracted to areas in search of food.  They can be forced out of an area when there is  nearby construction occurring.  This can force rats into neighboring properties in search of a new home.  Signs of rats include burrows around the building, chewed cloth or actual black droppings.

Rats can spread disease and when they are found living close to homes they will need to be controlled.