National HVAC promotes Mike Vallandingham to commercial sales

National HVAC Service of Seaford recently announced Mike Vallandingham’s promotion from commercial service technician to maintenance sales representative.

Having started his career with a degree from Rets Technical Institute in Baltimore, Vallandingham has worked in multiple states throughout the country and has performed in C-level management positions and corporate sales, including design/build of multimillion-dollar mechanical projects from hydronic systems, building automation and air side disciplines. He is also a certified project manager and has served as an owner liaison throughout the Midwest. With 35 years in the mechanical industry, Vallandingham is an essential addition to National HVAC Service and an expert in providing customized maintenance programs for commercial facilities. Vallandingham is the father of two children, a lover of the great outdoors, and a volunteer with several Christian ministries.

Bill Messick, National HVAC Service general manager, said, “It is always a great pleasure to promote someone from within our organization to a new role. With Mike’s vast experience and knowledge in the commercial HVAC industry, the position change was a perfect fit. We look forward to Mike assisting our commercial customers with ongoing maintenance solutions for their commercial buildings across Delmarva.”

To contact Mike Vallandingham, email or call 302-629-9400 Ext.123. For more, go to