I have had Fortress roofing reroof 3 commercial buildings for me in the last year. Mike and Karl were very responsive professionals and the jobs turned out very well. In commercial roofing, you are always subject to damage by other subcontractors such as HVAC and plumbing, with a lot of fingers pointing and hassle. Fortress roofing came back promptly on a couple of small, questionable roof issues and took care of them regardless. We will use them again.