I had my home spayed for pests Last Wednesday. I was told by the salesperson that they sprayed a 6-foot barrier around the house. When I asked the man who was spraying, he said the only go out 3 feet, but I think he only did about one foot and he said going out that far would just waste product. He sprayed the inside of our home also along the base boards. He was very pleasant to talk too. Now we will wait to see results.