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PremiStar Expands in Illinois with Acquisition of the HVAC Services Division of Dahme Mechanical

March 18, 2025
PremiStar acquires Dahme Mechanical's HVAC division, expanding its service capabilities in northern Illinois and northwest Indiana. The acquisition brings new expertise and growth potential.

PremiStar, a provider of commercial and industrial HVAC, plumbing, and building automation services, has acquired the HVAC services division of Dahme Mechanical Industries, Inc., based in Countryside, Illinois. This acquisition expands PremiStar's service capabilities in northern Illinois and northwest Indiana. As a result of this transaction, the employees and commercial HVAC customers of Dahme Mechanical's HVAC services division will join PremiStar's Frankfort (IL) operations.

Eric Simadis, who led the Dahme Mechanical HVAC services division, has two decades of experience supporting commercial, industrial, and institutional customers. "My entire team and the customers we serve are excited about becoming part of PremiStar," Simadis said. "PremiStar's outstanding reputation and its expertise in HVAC, plumbing, and building control services will enhance our capabilities for current customers, greatly expand our growth potential, and provide new career development opportunities for our team."

"I have known Eric for many years and am proud to welcome him and his and his team to PremiStar," says Gerry Grilec, group vice president of PremiStar. Joe Kirmser, CEO of PremiStar, said, "The team's skills, experience, and trusted customer relationships are a natural complement to our business. As a result, this will be a seamless transition with reciprocal benefits for all involved."