John Langebartels, owner
John opened Cornerstone Roofing in 2002. Prior to opening his own business he worked in construction, framing and roofing homes. He pursued his master's degree and then returned to working on the roof. John is a very organized and dependable person with immense experience working in the construction business. He has re-roofed and repaired many homes, apartments, businesses, and churches in Southeastern Wisconsin. John is a licensed, professional roofer and sider. He continues to attend and complete courses to remain up-to-date on the latest technologies and products available on the market today. John is a committed family-man who is married with a thirteen-year-old son, eleven-year-old daughter, eight-year-old daughter, and five-year-old son.