When it comes to residential and commercial roofing, there are quite a few aspects one should look for out of a contractor. A roofing contractor should be not only knowledgeable of your specific type of roof, but experienced in working the specific type of roof. Repairs and installation can be problematic if you dont know what to look for.
When looking for a roofer, check out their credentials. Make sure they are licensed and bonded. When it comes to new roof installations, they should also have a warranty on the job, labor, &/or roof being installed. Some are 5-20 Years like these Cincinnati Roofing Contractors who have years of experience and offer a backed 15-20 year warranty on all new roof installations. Don't just settle for any roofing contractor, find the best.
Also, if you need a specialized commercial roofing contractor in cincinnati, check the Cincinnati Roofing Pros out.