DEERFIELD, IL, July 22, 2025 — PremiStar, an industry leader providing commercial and industrial HVAC, plumbing, and building automation services, announced today that Rabe Environmental Systems, a mechanical contractor in Erie, PA, has joined the PremiStar family of companies. This partnership extends PremiStar’s capabilities to Northwestern Pennsylvania and the tri-state Great Lakes region, strengthening its commitment to customers in the manufacturing, healthcare, education, government, and commercial real estate sectors.
Founded in 1916, Rabe Environmental Systems specializes in designing, installing, and servicing heating, air conditioning, piping, plumbing, and building automation/energy management systems for industrial, commercial, and institutional customers. The company’s commitment to quality and safety is evident in the thousands of projects it has completed, from routine HVAC system updates to the design and installation of complex systems for process control. Over the past seven decades, Rabe has expanded its capabilities, staff, and facilities to serve as a one-stop resource for customers. Under the leadership of its president, Mark Patrizia, the company has grown by providing a safe, stable, and rewarding environment, and remaining committed to its core values of quality, efficiency, safety, and teamwork.
“PremiStar and Rabe are an ideal fit. The alignment with our mission and vision will make for an exciting partnership,” said Patrizia. “Our goal is to combine the experiences, talents, and strengths of our two organizations to further accelerate growth and customer success through shared values, innovation, and a culture of extraordinary customer service. This partnership strengthens our ability to invest in the technology, training, and expert collaboration that help our employees, customers, subcontractors, and suppliers grow.”
“It is with great pride that I welcome Mark and his team of 120 employees, loyal customers, subcontractors, and valued suppliers to PremiStar,” said Joe Kirmser, CEO of PremiStar. “As our industry continues to evolve to meet the increasingly complex needs of facility owners and managers, Rabe Environmental Systems is joining forces with PremiStar’s leading platform of nationwide mechanical service providers and adopting our growing arsenal of best practices to drive operational excellence, energy efficiency, and data-driven solutions.”
About PremiStar
PremiStar, formerly Reedy Industries, operates 55 commercial HVAC, building automation, and plumbing branches across 16 states. PremiStar is transforming the industry by investing in leading regional owner-operators, extraordinary people, unique customer-centered solutions, and the communities it serves. With over 2,800 employees, PremiStar supports owners and managers of critical facilities in the commercial, municipal, educational, and industrial markets by helping them create healthier, more cost-effective, and more energy-efficient environments.
Contact: Bill Tamul, Vice President, M&A
Phone: 617.480.2085
Email: btamul@premistar.com