Testing & Inspection

The verification of construction materials on your jobsite is integral to meeting the high standards of local and national building codes. Our team at TERRADON is a leader across West Virginia, documenting compliance with project design specifications and regulatory requirements for utility, highway, and commercial construction projects.

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From small additions to complex developments, ensuring quality control through testing and inspection keeps your project on schedule, within budget, and in compliance with client expectations. Our quality control and quality assurance testing and inspection services give you the confidence that the site work is completed properly.

We provide team members with expertise across a number of fields; veterans of the industry who have perfected their skills on numerous projects. From the soil conditions to concrete to welding of structures, our team excels in field and laboratory services, and has the know-how to provide the information and reports that convey results clearly and precisely.

All of this has made TERRADON the go-to field services company across the region. Our team holds certifications and accreditations from industry authorities like the West Virginia Department of Highways and American Concrete Institute (ACI). TERRADON follows testing and inspection guidelines set by the American Association of State Highway Officials (AASHTO) and ASTM International.

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At TERRADON we are the industry leaders in a wide variety of materials and
specialty testing and inspections services.


  • Slump of Portland Cement Concrete (AASHTO-T119)
  • Air Content of Freshly Mixed Concrete (AASHTO-T196 and T152)
  • Unit Weight and Yield (AASHTO-T121)
  • Making and Curing of Concrete Test Specimens (AASHTO-T23)
  • Compressive Strength of Concrete Specimens (AASHTO-T22)
  • Fine and Coarse Aggregate Gradations (AASHTO-T11 and T27)
  • Specific Gravity of Aggregates (AASHTO-T84 and T85)
  • Atterberg Limits (ASSHTO-T89 and T90)
  • Moisture Content of Soil (ASTM-D2216)
  • Preparation of Certification Forms and Construction Reports
  • Nuclear Compaction Testing of Soil, Stone, and Hot Mixed Asphalt
  • Welder Certification
  • Steel Inspection

Service Offerings

  • Floor Flatness Testing
  • Fireproofing
  • Masonry Testing
  • Structural Steel Inspection
  • Certified Welding Inspection
  • Dye Penetrant Testing
  • Bolt Testing
  • Project Safety Monitoring
  • Concrete Testing
  • Compaction Testing
  • Bearing Capacity Testing
  • Compaction Testing
  • Construction Monitoring
  • Core Sampling

"Our experience, plus our constant push to adapt and master the latest testing and inspection tools and processes, helps us to ensure the success of building structures – and more importantly, the safety of everyone from the builders to the end users."

— Jason Asbury, Geotechnical & Field Services Department Head

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