When you're looking for a reliable residential or commercial roofing specialist, look no further than Mr B's Roofing based in Derry, New Hampshire. From designs and installations to re-roofing projects, our team does it all at competitive prices. The median age of homes in southern New Hampshire is 45 years. That means updated roofing is a necessity for safety, heating and cooling costs, and longevity of your home or business, not to mention to increase its curb appeal. Proper design and installation of shingles can change the entire appearance of your building.