How much would you charge for aerating around 7,000 square feet of lawn. renting the aerator cost $15.00 per hour; minimum 2 hours. We were thinking $90.00 for customers and $110.00 for non-customers. Also, around how much do you charge for dethatching for this size lot and would you dethatch before or after aerating if you would even dethatch at all if aerating? The grass type is bluegrass mostly.