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Lennox Announces Building Climate Solutions Leadership Transition

PR Newswire•02/11/2026•16:15 ET
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Key Highlights

  • ➤Joe Nassab transitions to Strategic Advisor at end-2026
  • ➤Geoff Dethlefsen becomes Building Climate Solutions president January 1, 2027
  • ➤Building Climate Solutions expanded through AES acquisition and operational investments
  • ➤Lennox Commercial HVAC grew revenue and margins under Dethlefsen's leadership

Expert Statements

Alok Maskara, Chief Executive Officer of Lennox

“Joe has made a lasting impact on Lennox through his leadership, industry expertise, and unwavering commitment to our customers and employees.”

Alok Maskara, Chief Executive Officer of Lennox

“I am delighted that Lennox will continue to benefit from Joe's leadership and deep industry experience. In his new capacity, Joe will focus on supporting the Building Climate Solutions segment and coaching and developing our general managers and the next generation of leaders.”

Joe Nassab, Strategic Advisor at Lennox

“It has been a privilege to work alongside the talented teams across Lennox. I am proud of what we have accomplished and confident that Geoff and the Building Climate Solutions team will continue driving the business forward and delivering for our customers.”

Alok Maskara, Chief Executive Officer of Lennox

“Geoff has delivered strong results since joining Lennox. Lennox Commercial HVAC has grown in revenue and margins, improved operations, and opened our new manufacturing facility in Saltillo under his leadership. His record of commercial execution, operational leadership, and disciplined capacity expansion positions him well to continue accelerating growth and expanding margins across Building Climate Solutions.”

Geoff Dethlefsen, Executive Vice President and President, Building Climate Solutions, Lennox

“I am honored to lead Building Climate Solutions and build on the strong foundation Joe and the team have established. We will remain focused on serving our customers, strengthening execution, and capturing the significant growth opportunities ahead.”

Lennox Announces Building Climate Solutions Leadership Transition PR Newswire

Joe Nassab to transition to Strategic Advisor role, Geoff Dethlefsen named Executive Vice President and President, Building Climate Solutions

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