Schmidt Mechanical Group did some duct work in my attic and installed insulation. They did a good job, and they did exactly what they were supposed to do. The only problem I had with them was they borrowed my brand new drill without telling me. When I looked for it the next day to do some work, it was gone. I called them but it was the weekend, and I absolutely needed a drill that day. So I had to go out and spend a hundred bucks for another drill. Later, my brother found it in the attic, where they had left it. Other than that, they did a good job. Their work was good, and they cleaned up after themselves.