Improve your lawn’s health from the ground up with dethatching, core aeration, and overseeding. Dethatching removes the layer of dead grass and debris that blocks water and nutrients from reaching the soil. Core aeration pulls plugs from compacted ground to open up airflow and root growth. Overseeding fills in thin or bare patches with fresh seed matched to your existing lawn. Best done in late summer or early fall for New Hampshire lawns. Quote based on lawn size and current condition.