What is “Core Aeration” and how do I know if I need it

What is “Core Aeration” and how do I know if I need it?

Core Aeration loosens the soil to improve the flow of air, water and fertilizers to your grass roots. Aerating your lawn also controls thatch build up, relieves compacted soil, and stimulates root development, creating a healthier lawn. This is one of the best things you can do for your lawn once a year.