We also provide lawn aerations during the spring and fall months. It is recommended that aerations take place at least once a year. A visit should take place either in the spring or during the fall. In the spring, aeration helps add root growth, promote drought tolerance, increase water infiltration, and add density to your lawn so it can prepare for the hotter summer months ahead. The visit in the fall will help prevent winterkill by increasing oxygen flow in the soil, reduce the thatch layer that has built up over the course of the year, and allow nutrients to reach the root zone more effectively.