Roncelli is one of Michigan’s largest construction services firms with work throughout the state, the Midwest and Ontario. Our focus is building excellence in every market we serve.
Our services begin with collaboration, hard work and a shared vision for success. They end with a project that will stand the test of time.
We’ve built a lot over the last half-century. Check out some of our award-winning work to see how we can help build your next project.
Roncelli was selected by General Motors to perform construction services on the roof of the GM Components Holdings plant in Grand Rapids, Mich. The work consisted of Roncelli’s team demolitioning four existing roof access stairs and modifying an existing staircase.
The team detailed, fabricated and installed five galvanized stairs, handrails, grating treads and landings with corral guards. New roof flashing and membrane roofing was replaced as needed along with all necessary roof penetrations.
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