Over time, grass and soil can become compressed and compacted. This creates thatch, which is a thin layer of dead and decomposing grass between growing soil. As thatch grows, it prevents air, water and fertilizer from getting to the roots of your grass.

Lawn aeration punches holes in your lawn's surface. This helps reduce surface compaction and allows air to permeate the ground. These holes also create a path for other life-sustaining growth components like water and fertilizer to easily reach the root zone hidden below your thick lawn.