After struggling to resolve my rat issue in my basement with my original pest control provider (they set traps... and one was caught and ran to die in an area we couldn't reach, it smelled for weeks), I called Eric. Before doing anything, by simply looking at the droppings, he determined that there weren't many, maybe 1-2, but we needed to act fast, because it could be a couple. He had a hypothesis that the rats were coming in through a hole from my AC system that led to the sewage and were using the space between the walls (specifically, the insulating materials) as their nests. To test the hypothesis, he covered the hole with a plastic cover. Came back two days later. Sure enough, the cover was chewed through. He then came back at a time he knew the rats would be out foraging (there was nothing to eat in my basement), filled the hole with water, closed the hole with steel mesh. Voila, he resolved my issue completely without killing any rat. I was so grateful, because while I don't like rats in my house, I hated the idea of killing them.