Special Inspection ServicesCole Technologies Group (CTG) in-house, state-of-the-art engineering laboratories are licensed by the NYC Department of Buildings. Our licensed professional engineers in accordance with applicable accreditations and certifications provide extensive material testing services.


  • Floor Flatness Surveys
  • Coatings/Sealant/Paint Chemical Evaluations
  • Asphalt Surface Smoothness Profiling Survey
  • Soil Resistance Testing
  • Ground Penetrating Radar (GPR)
  • Vibration Noise Monitoring (Seismic)
  • Deformation/Settlement Monitoring
  • Concrete Petrographic Evaluations
  • Rebar ½ – Cell Corrosion Potential Surveys
  • Windsor Probe Testing
  • Steel Non-Destructive Testing (NDT)
  • Thermal-Imaging of Concrete
  • Pachymeter Survey
  • Jeeping (Holiday) Test of Coatings/Pipes
  • Air Flow Verification of Ducts
  • Fire Hydrant Flow Test
  • Electrical Conductivity (Meagre Test)
  • Grounding Resistivity & Continuity
  • Lightning Protection System Verification