Southeast Michigan Contractor Joins ABC for National Growth

    Ron Carnwath, owner and president of Cornerstone Industrial is a third-generation contractor. He got his start working alongside his grandfather on the dump trucks at a young age and from then on, it became his dream to work in construction.
    “My great grandfather got his start in electrical. My dad hated electrical, so my grandfather started a contracting company to eventually pass off. Little Caesars was the first restaurant they did and they completed thousands of them all over. My grandpa was close with Mike Illitch and that became a steady pipeline of work that we expanded on,” Carnwath said.
    Carnwath started Cornerstone Industrial in 2014 with just himself. Today, he has a team of over 20 and has work throughout the Midwest, Northeast and Atlantic regions. Carnwath credits their growth to their turnkey solutions and customer service.
    Initially founded with an original focus on residential remodeling and general construction, Carnwath sensed a larger opportunity in commercial, primarily restaurants. Carnwath later discovered that there was a need for facilities maintenance at restaurants and has emerged as one of the most trusted maintenance teams nationally.
    “I’ve put an intense focus on the culture we’re growing here and presenting to the public,” Carnwath said. “Customers know they can count on us to operate with the same level of care and diligence as we would if we were working on our own businesses. We hold a high standard, and we want to find employees and partners who have the same expectations. We’re hopeful that our membership with ABC will connect us to the right talent to deliver top-notch service.”
    Currently, Cornerstone’s crowning achievement is servicing Chick-fil-A in seven states. They’ve helped deliver solutions that provide Chick-fil-A the ability to serve a high-demand of customers quickly. To learn more about Cornerstone Industrial and their work, visit