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      • Windows Analysis or Contemporaneous Period Analysis
      • Time Impact Analysis (TIA)
      • Collapsed As-Built
      • Impacted As-Planned
      • As-Planned vs. As-Built
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      • Construction Delay Claims
      • Labor Productivity Claims
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      • Force Majeure Claims
      • Acceleration Claims
      • Suspension and Termination Claims
      • Differing Site Conditions Claims
      • Change Claims
    • Construction Defects
    • CPM Schedule Analysis
      • Windows Analysis or Contemporaneous Period Analysis
      • Time Impact Analysis (TIA)
      • Collapsed As-Built
      • Impacted As-Planned
      • As-Planned vs. As-Built
    • Construction Management
      • Contract Administration
      • Implementation of Project Controls
      • Execution of Processes and Procedures
      • Change Management
      • Risk Management
    • Litigation & Arbitration
      • Prudence Evaluation Experts
      • International Arbitration Construction Experts
      • Labor Productivity Analysis Experts
      • Schedule Delay Experts
      • Damage Quantification Experts
      • Design & Construction Defects Experts
      • Acceleration Experts
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  • GlassRatner Experts
    • Sam Barakat, PE, Esq., PSP
    • Jacob P. Hammond, CST
    • Lisa Sumner Heard
    • Dennis R. Jasinski, Fellow – ICCP
    • Mohamed W. Khazragui
    • Angela E. Lopez
    • Karen P. Matthews
    • Nicholas V. Ninan, CCP
    • Gabriel Paglicawan
    • Tapan Patni
    • Christopher J. Sullivan
    • Philip D. Barnard, PE
    • David Frinsco
    • Michael T. Gunter, PE, EVP
    • Chad P. Kirlin, PE, PMP
    • Greg Lamberson
    • Pete D. Luan, PMP
    • Charles W. Miller
    • Carolyn L. Morgan, CPA
    • Sean P. Pellegrino, PE
    • Leslie Rucker, CSP
    • Rodney Crawford, CPA
    • Kip Hamilton, CPA, CFE
    • Joel Murovitz, LEED AP
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      • Differing Site Conditions Claims
      • Change Claims
    • Construction Defects
    • CPM Schedule Analysis
      • Windows Analysis or Contemporaneous Period Analysis
      • Time Impact Analysis (TIA)
      • Collapsed As-Built
      • Impacted As-Planned
      • As-Planned vs. As-Built
    • Construction Management
      • Contract Administration
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GlassRatner (Formerly Interface Consulting) provides a portfolio of professional support services to a wide range of clients including owners, contractors, attorneys, engineers, insurers, and suppliers involved in the engineering and construction process.

Construction Claims & Disputes
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Litigation & Arbitration
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GlassRatner’s primary resource is our exceptional staff of highly qualified and experienced construction experts and consultants. Each consultant offers a unique combination of technical expertise and capabilities to address our clients’ challenges.

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GlassRatner Updates & News

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GlassRatner Acquired by TorQuest Partners, Reestablishes Itself as an Independent Brand

GlassRatner Acquired by TorQuest Partners, Reestablishes Itself as an Independent Brand

Embarks on a New Chapter of Growth and Innovation June 27, 2025 09:55 ET | Source: GlassRatner Atlanta, GA, June 27, 2025 (GLOBE NEWSWIRE) --...

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June 27, 2025
GlassRatner Announces Staff Additions

GlassRatner Announces Staff Additions

GlassRatner is pleased to announce the recent additions of Tapan Patni and Gabriel Paglicawan to its staff of engineering and construction experts....

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April 22, 2025
GlassRatner Sponsors Forum on Construction Law 2025 Annual Meeting

GlassRatner Sponsors Forum on Construction Law 2025 Annual Meeting

GlassRatner, a construction expert services firm, is pleased to continue its support of the American Bar Association Forum on Construction Law at the 2025...

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April 14, 2025
GlassRatner Testifies in $667M Win for Energy Transfer 

GlassRatner Testifies in $667M Win for Energy Transfer 

Chris Sullivan Acts as Expert Witness in Dakota Access Pipeline Case  GlassRatner Inc., a B. Riley company, announced that Chris Sullivan’s expert...

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March 27, 2025
GlassRatner Sponsors State Bar of Texas 38th Annual Construction Law Conference

GlassRatner Sponsors State Bar of Texas 38th Annual Construction Law Conference

GlassRatner, is pleased to continue its support of the Annual Construction Law Conference as a Developer Sponsor and Golf Tournament Hole Sponsor. This...

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February 24, 2025
GlassRatner Enhances International Reach, Welcomes New Experts

GlassRatner Enhances International Reach, Welcomes New Experts

GlassRatner is pleased to announce that Mohamed Khazragui, Sam Barakat, Chad Kirlin, and Derek Sayers have joined the firm’s staff of highly qualified...

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February 13, 2025
GlassRatner to Exhibit at 76th Annual Energy Law Conference

GlassRatner to Exhibit at 76th Annual Energy Law Conference

GlassRatner, a construction and engineering expert services firm, will exhibit at the 76th Annual Energy Law Conference being held February 13-14, 2025, in...

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February 6, 2025
GlassRatner Sponsors ABA Forum on Construction Law 2025 Midwinter Meeting

GlassRatner Sponsors ABA Forum on Construction Law 2025 Midwinter Meeting

GlassRatner, a construction and engineering expert services firm, is pleased to continue its support of the American Bar Association Forum on Construction...

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January 9, 2025
GlassRatner Heads to Fabulous Las Vegas for Construction SuperConference

GlassRatner Heads to Fabulous Las Vegas for Construction SuperConference

GlassRatner, a construction expert services firm, is pleased to sponsor and attend the 2024 Construction SuperConference. This year’s event takes place...

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November 26, 2024
GlassRatner Sponsors 2024 Basic Course in Texas Construction Law

GlassRatner Sponsors 2024 Basic Course in Texas Construction Law

GlassRatner, a construction expert services firm, is proud to continue its support of the Basic Course in Texas Construction Law as a Developer sponsor of...

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November 13, 2024
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by Bennett Coleman

GlassRatner Acquired by TorQuest Partners, Reestablishes Itself as an Independent Brand

Embarks on a New Chapter of Growth and Innovation June 27, 2025 09:55 ET | Source: GlassRatner Atlanta, GA, June 27, 2025 (GLOBE NEWSWIRE) --...

Read More

GlassRatner Acquired by TorQuest Partners, Reestablishes Itself as an Independent Brand

UncategorizedJune 27, 2025
by Jacob Hammond

Construction Management Standard of Care

1. INTRODUCTION 1.1 Purpose GlassRatner’s experts are often called on to analyze the construction management standard of care employed on...

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Construction Management Standard of Care

Construction Management, UncategorizedApril 18, 2024
by Jacob Hammond

The Sandbagging Trap

When I began my career in construction working for a large general contractor, knowing project cost was a condition of employment, and one could not truly...

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The Sandbagging Trap

Construction Claims, Construction ManagementDecember 13, 2022

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Top three words used to describe GlassRatner: Professional, Smart, Capable. Other adjectives include: experienced, responsive, competent, reliable, aggressive, confident, dependable, diligent, effective, qualified, and thorough.

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GlassRatner (Formerly Interface Consulting) provides a portfolio of professional support services to a wide range of clients including owners, contractors, attorneys, engineers, insurers, and suppliers involved in the engineering and construction process.

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