Engineering and Inspection Services for the Construction Industry

Our diverse and integrated engineering and inspection capabilities — and decades of experience — make IIA an obvious choice to support your construction project.

Whether your project is a quick weld verification or an in-depth verification of structural steel during fabrication or erection, we can help. Our team includes professional engineers and certified inspectors who are equipped to handle any construction project, large or small.

Inspection Services

  • Visual Structural Steel Inspection, Fabrication & Erection
  • Lift Equipment Inspection & Certification
  • Various NDT Services & Oversight
  • Quality Assurance/Quality Control
  • Weld Quality & Overall Workmanship Visual Inspection
  • Drawing & Specification Review
  • Welding Procedure Development & Review
  • Welder Qualification Testing Witness
  • Fabrication Personnel & Procedure Validation
  • Material Test Report Verification
  • “As Built” vs. Drawing Comparisons
  • Torque Testing & Bolting Installation Examination
  • Coating Inspections & Verification
  • Fabrication Shop and On-Site Fabrication Inspections

Engineering Services

  • Shop Drawings & Connections Design
  • Structural Erection Plans
  • Critical Lift Planning & Rigging Studies
  • Temporary Shoring, Scaffolding, Formworks & Falseworks
  • Quality Verification Engineering (QVE)
  • Load Rating & Custom Lift Design
  • Pre-Engineered Lifting Products
  • Construction Accident Investigations
  • Fall Protection System Design
  • Steel & Concrete Design for Building Add-Ons/Expansions
  • Demolition Plan & Review for Construction Projects
  • Pre-Condition & Pre-Construction surveys
  • Roof Anchors & Davit Support Design
  • Structural Analysis of Permanent or Temporary Structures
  • Lift Equipment Inspection & Engineering
  • Access Platforms
  • Formworks
  • Shoring / Reshoring / Scaffold Design
  • CAD Services


Our team can handle most phases of small to mid-size construction projects from beginning to end, including such critical stages as: concept drawings, final approved design, shop drawings and member connections for fabrication, third party fabrication sourcing (if required), and final visual inspection and non-destructive testing on fabrication and erection (if required).