After I got pissed at ABC Pest, I followed the recommendation of someone on one of these threads. I looked up Domyown. com. I ordered their four gallon backpack pump up sprayer and some of their insecticide. Total cost was about $150 which was about the cost of one treatment at the time. That was about three years ago. I still have plenty of insecticide left. I do it at my convenience and don't have to block off a "window " for some tech. Haven't seen any bugs and I am dollars ahead.