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You should never block both the top and bottom of your chimney. Proper airflow is essential because the temperature inside the chimney will still fluctuate as your house warms and cools. Moisture can build up without ventilation, leading to dampness in your walls over time. Blocking the top prevents debris and animals from entering, but the chimney still needs air circulation to avoid condensation issues. Allowing the chimney to breathe maintains the health of your home and prevents long-term damage.

A squirrel in a chimney may sound like gnawing since they like to chew through a wide range of materials. You may also hear a persistent scratching sound if they’re trapped inside and unable to get out themselves. Other evidence of a squirrel in your chimney includes holes on or around your chimney as well as droppings or damage to roof shingles or wiring.

You can use commercial repellents to help deter rodents, but they often have mixed results. A better solution is preventing rodents from getting under your home in the first place. Using steel wool or foam sealer, plug all potential entry points like gaps and cracks in the foundation. 

Also, consider installing hardware cloth or wire mesh over vents, utility openings, and any openings under the porch or foundation. Regular inspections and maintenance will aid in early detection and prevention, ensuring a rodent-free environment beneath your house.

Yes, rats will go near a sleeping human, especially if there is food or crumbs nearby. What’s worse, they may even bite humans while they are asleep. Common places for bites are exposed fingers, toes, hands, and faces. To minimize the risk of rats approaching you and your family members while they’re asleep, do not eat or leave accessible food packages in the bedroom.