We had several quote to blow insulation in the attic of our 50 year old house. We chose Tri-Stone because of the vast amount of knowledge Aaron had in regards to attic insulation, R values, and asbestos. Of the 4 quotes we had, he was the only one who was able to locate a small leak we had causin moisture on our inside walls. We have not had an issue with that spot since Aaron and his guys fixed it. Aaron also did a fabulous job hand building us a set of custom cabinets or our laundry room.