Justin T. Kestner, P.E.

President & CEO, Principal Engineer

Justin T. Kestner P.E.

President & CEO, Principal Engineer

Mr. Kestner serves as CEO of Haag Global, Inc., and President of its subsidiaries. In addition to leading Haag, Mr. Kestner continues to provide engineering consulting and expert witness services. He has provided expert testimony in cases involving roof and building envelope performance/damage, bridges, sinkhole and other foundation-related issues, and more. He has evaluated thousands of roofs for storm damage, installation issues, alleged product defects, alleged intentionally-caused damage, and general leak causation. Further, Mr. Kestner has evaluated over a thousand buildings for cause and extent of damage from foundation movement (sinkholes, expansive clay soils, organics, and/or inadequate fill/prep) and damage from stabilization efforts, including properties affected by catastrophic ground cover collapse.

Mr. Kestner has taught numerous continuing education courses for Haag Education, and he has co-developed and taught various sinkhole-related seminars and Haag’s Certified Inspector programs for residential and commercial roofing damage assessment. He has also presented at various conferences, as well as to student chapters of the American Society of Civil Engineers. 

Prior to joining Haag, Mr. Kestner was primarily involved in the design, analysis, and inspection of bridges, culverts, overhead sign structures, strain poles, mast arms, and retaining, MSE, and sound barrier walls. He also performed third party design reviews for various transportation entities, inspections of piers and roads, and prepared foundation and hydraulics reports for bridges and culverts.

Primary Areas of Consulting

  • Structural Evaluations
    Commercial, residential and industrial buildings
    Bridges, culverts, and sign structures
    Wind damage
    Flood/surge damage
    Fire damage
    Structural collapse
    Settlement/heaving damage
    Impact damage from tree, automobile, etc.
    Building code issues & code upgrades
  • Roofing System Evaluations
    Cause, nature, and extent of damage, particularly wind and hail
    Quality of manufacture and application of roofing
    Code issues
  • Geotechnical Evaluations 
    Foundation and wall evaluations
    Sinkhole evaluations
  • Moisture Source Evaluations
  • Construction Defects Evaluations
Licensed Professional Engineer in the States of: Alabama, Delaware, Florida, Georgia,
Kentucky, Louisiana, Maryland, Massachusetts, Mississippi, New Jersey, North Carolina, Ohio,
Pennsylvania, Puerto Rico, South Carolina, Tennessee, Texas and Virginia


  • American Society of Civil Engineers
  • Fritz Engineering Research Society
  • National Council of Examiners for Engineers and Surveying
  • Phi Kappa Phi National Honor Society

College Education

  • Bachelor of Science in Civil & Environmental Engineering
    Villanova University, 1995
  • Master of Science in Civil Engineering
    Lehigh University, 1998
  • Master of Business Administration
    Villanova University, 2004

Testimony history available upon request.

1410 Lakeside Pkwy., Ste. 100, Flower Mound, TX 75028 * 214-614-6500 * HaagEngineering.com