Limbach Holdings, Inc. announced the appointment of Terry Dugan to the Company?s Board of Directors, effective January 1, 2026. Terry Dugan will serve as a director and on the Board?s Compensation Committee. Terry Dugan brings more than four decades of operating, strategic, and transaction experience in the HVAC and building systems solutions industry, directly aligned with the Company?s current focus on profitable growth, cash flow generation, and long-term shareholder value creation.

Throughout his career, he has served a broad national customer base including mission critical building owners, MEP contractors, and construction engineers, providing him with a deep understanding of the end-markets that drive sustainable demand and recurring revenue. Terry Dugan held senior leadership roles at Trane Technologies plc and its predecessor, Ingersoll Rand, where he led commercial and strategic initiatives serving owner direct customers across North America. Most recently, he served as Vice President and North America Commercial Business Leader, as well as Vice President of Business Development for M&A. In these roles, he was directly responsible for driving organic growth, evaluating and executing strategic acquisitions, and strengthening Trane?s competitive positioning, contributing to sustained revenue expansion and margin improvement.

From 2018 to 2024, Terry Dugan served on the Joint Venture board of Mitsubishi Electric Trane HVAC U.S. as Ingersoll Rand?s and Trane Technologies? Lead Director, and was a member of its compensation committee, where he helped align executive incentives with performance and profitability. On January 5, 2026, Terry Dugan advises small and mid-sized HVAC businesses on growth strategy, operational execution, and value creation, and consults with private equity firms and investment banking advisors focused on HVAC manufacturing, mechanical systems, and building services.

Terry Dugan holds a bachelor?s degree in mechanical engineering from Vanderbilt University and an MBA from the Ross School of Business at the University of Michigan.