Nash Roofing wants to make sure you get the best out of your experience even if you don't choose us to do your work. There are a few things to watch out for when choosing your roofing contractor to do your job. Always ensure that your contractor has a Class A Contractors License. Contractors have to pass a rigorous test to obtain this license, so this ensures you have the right person on your job. Make sure you know how long a company has been in business; anyone can tell you how many contractors go in and out of business, and you don't want to be stuck with a roof that you aren't happy with and the contractor nowhere to be found.