Jon Haderle gets an A+ from me! He did a difficult, unpleasant job that two carpenters and one pest control company had turned down. He designed and built a structural barrier to exclude rats and large animals from under my home, and got rid of the ones that were there without using poison at my request. He accurately identified the problems, gave me options for fixing them, and completed the project with good worksmanship, reliability, and efficiency. He's very knowledgeable and an excellent problem solver who will listen to your concerns.