Obstacles, such as stumps or irrigation heads are marked out prior to beginning the Lawn Aeration service. The lawn aerator is then used to puncture 3-inch-deep holes throughout your lawn. The plugs which are extracted are left on the lawn as they are full of nutrients and serve as a beneficial top dressing of soil. The plugs will eventually break down from watering and mowing your lawn. Note: Fresh sod should not be aerated until it has established a root system (~ 1 year). ​ Note: Lawn should be thoroughly watered 24 hours before service to ensure an effective extraction of plugs.