Guy A. Marchessault

Guy A. Marchessault is a construction defects expert specializing in construction-related litigation. With a career spanning four decades in the construction industry, he brings a seasoned perspective to his litigation work. His work centers on investigating construction defects, assessing compliance with building codes, and evaluating whether industry standards were met.

Mr. Marchessault has been retained in numerous expert witness and consulting engagements across various construction defect cases. His AS in Architectural and Building Technology from Vermont Technical College reinforces his ability to deliver objective, defensible analyses. He is regularly engaged by both plaintiff and defense counsel to provide clear, independent determinations of responsibility in disputes involving construction defects.