We asked Zimmerman's Roofing to put on a cedar shake roof for us about five years ago, and they did a wonderful job. Recently, they came back out to check it over, and they discovered that the three little vent windows in our attic were blocked. I have been living here about 30 years, and frankly, I never thought about cleaning them off. They replaced the little screens and got the air to flowing up there again. They were very professional and very nice to deal with, and they did a good job. They did not make any kind of mess either, and I appreciate that. I plan on having them come out and put a cedar shake roof over the porch, and an addition to the house. I already recommend Zimmerman's Roofing to everyone I know. They are a good company.