Mike's team came in with short notice and removed and patched all the vents in 6 of my rooms that no longer function (I believe they were part of some whole house fan system that was removed a long time ago). They assessed the situation and gave me a fair price that I accepted. They began by taping off the areas where they worked and 6 hours later I could not tell where they had done the work (which I guess is the goal of a good drywaller). I'm pleased with his work and the price and would recommend him to others. I found him on Angie's List.