Maintain a Partnership Through All Stages of Construction
For quality assurance to be genuinely effective, our team partners with you from concept to vertical. With qualified engineers and inspectors certified through VDOT, ACI, MDSHA and WACEL on Concrete, Asphalt, Soil, Structural Masonry. Every phase of your project can be inspected and ensured to be completed within the highest quality standards.
Our Construction Materials Testing (CMT) services include but are not limited to..
- Soil compaction testing and inspection.
- Water and chemical injection and inspection.
- Concrete and asphalt testing.
- Post-tension cable inspection.
- Reinforcing steel inspection.
- Structural masonry testing.
- Fireproofing materials inspection, and more.
We are your trusted Eyes and Ears on the Construction Site.
When partnering with contractors, our team provides proactive and responsive services to keep your project on track. While our refined methodology ensures efficiency and consistency, we recognize that every project is unique, presenting its own challenges. That’s why we remain agile, ready to adapt our approach to meet the specific needs of each project.
Laboratory Testing

Zad Engineers operates an in-house, state-of-the-art, AASHTO-accredited laboratory; providing physical testing of soil, concrete, aggregate, asphalt and building materials. The lab is routinely audited in these fields through AASHTO’s re:source program (formerly AMRL). The Laboratory is also certified with the Virginia Department of Transportation (VDOT). In addition to the in-house laboratory, Zad Engineers can provide mobile, on-site laboratory services anywhere in the state or region.