I've just started reaching out to get estimates for lawn care and core aeration. I was very impressed with the Turf Care Enterprises, Inc. presentation. One of the other companies I've talked with was pushing Core Aeration now. I was surprised because I think we missed the window as this should be done in late August/September. When I asked my rep Jessica about aeration she said that it was too late and I should wait until, at least, Spring and optimally next fall.