We noticed a few silverfish in our house early in the summer. Combined with a spider issue in our newly finished basement, we figured it was time to call a pest-control expert. I should have done my research before I called Orkin, because they charged me $250 for a one-month service (as I didn't want regular treatments), which was not effective in controlling our spider issue and uncovered no silverfish issue of note. They were also very unhelpful in figuring out the source of a mosquito issue in our home. Chem-wise, however, dedicated a good amount of time on the phone with me talking about our mosquito issue BEFORE i was a paying customer. Their first treatment -- literally half the cost of what I paid Orkin-- was MUCH more effective. I just called them to talk through a fly issue in our house, and once again, the service was excellent. I would highly recommend the company to anyone.