Lawn Aeration is the removal of little 2" plugs of soil from the turf/ground. This allows oxygen, water and nutrients to get down to the root system and will help thicken and strengthen the lawn in the coming spring.
Lawn dethatching is the removal of thatch that lays just above the soil and creates a barrier that prevents fertilizer and nutrients from penetrating the soil properly. The removal of this will also help thicken the lawn up in coming spring season.
These services are typically performed during the fall growing season between late August -Mid October. Typically at this time a seeding will take place as well to further enhance your lawns over all health and look come the spring season.