David C. Flettrich, P.E.

David C. Flettrich, P.E. is a forensic engineering expert specializing in cause and origin investigations related to poorly performing or problematic building systems. With a career spanning the design and retrofit of mechanical, electrical, and control systems, he brings a multi-disciplined perspective to litigation work. His work centers on investigating design errors and omissions, assessing construction defects, and evaluating whether building systems meet industry standards.

Mr. Flettrich has been retained in numerous expert witness and consulting engagements across the Southern United States, involving residential, commercial, industrial, and institutional facilities. His Bachelor of Science in Electrical Engineering from Tulane University, along with certifications as a Certified Indoor Environmentalist (CIE) and Certified Microbial Remediator (CMR), reinforce his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of causation in disputes involving HVAC systems, moisture intrusion, and energy management.