VERTEX has Experts that Talk the Talk and Walk the Walk.

Unlike others, VERTEX provides forensic consulting alongside traditional AEC services which allows for a 360 degree view of your project.

VERTEX Services


Need an expert for your case?

Our forensics experts work alongside AEC specialists which enhances our skills and bolsters the credibility of our expert consultants.

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VERTEX delivers innovative solutions on complex projects globally.

Since 1995, VERTEX has completed over 90,000 projects.

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VERTEX believes in a Lifetime of Learning philosophy.

Stay current with our industry experts as they share their insights and knowledge on the built environment.

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VERTEX is looking for talented individuals to join a highly technical team of forensic consultants, design engineers, construction managers, and environmental scientists.

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Have a question or want to speak with a technical professional?

VERTEX is a multi-discipline firm with global coverage. Our international network of resources enables us to provide multi-national clients with the most qualified local professionals who understand the culture, language, and regulatory framework.

Call Us: 888.298.5162

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Call us at 888.298.5162.

Robert KleinCPE, CEI, CIT

Senior Construction Consultant, Forensics

Rob Klein’s areas of expertise include Building Diagnostics, Forensic Investigation, Building Envelope Consulting, Property Condition Assessments, Transition Studies, Scope of Work Development, Cost Estimating and Analysis and Construction Management. He has performed extensive infrared investigations, moisture surveys, invasive investigations and water testing. His project experience includes Expert Testimony, Construction Litigation Support, Developer/Association Transition for Government and general commercial, industrial and residential clients. Mr. Klein is a licensed Building Sub Code Official and Construction Official in the State of New Jersey, with High Rise/Hazardous, Industrial/Commercial, Residential; and Mechanical (one and two family) endorsements. Mr. Klein is also a Certified Professional Estimator by the American Society of Professional Estimators, a Certified EIFS Inspector by the Association of the Wall and Ceiling Industry, and a Certified Level I Thermographer by the Infrared Training Center.

Education & Certification

B.S., Commerce and Management, Rider University
Building Inspector RCS Program, 90 Hours, Raritan Valley Community College
Building Inspector ICS Program, 75 Hours, Raritan Valley Community College
Building Inspector HHS Program, 60 Hours, Raritan Valley Community College
Subcode Official Program, 45 Hours, Middlesex County College
Construction Official Program, 45 Hours, Middlesex County College

Expert Witness Services

Forensics Technical, Architecture / Building Envelope