RF Wildlife recently responded to a call in Essex CT the home owner had a squirrel running around the living room. We chased out the squirrel that was hiding under the armchair. Upon further inspection we noticed the door to the attic ajar. The squirrel had a nest in the corner of the attic. Bat droppings or guano was also found in the attic. A squirrel chewed a hole in the louver vent and screen allowing access for the bats also. After making sure no other squirrels were still in the home we removed the nest. We then installed a one way door device (bat cone) over the hole and seal the rest of the vent with hardware cloth.
Wiring had been chewed by the squirrels causing a fire hazard. Even though this homeowner lived in a well maintained home squirrels do not discriminate. If you are hearing noises in your attic , please do not hesitate, call a professional. Animals can and will cause major damage once they have access into your home.