Materials Testing Performed in the Renton and Seattle, WA, Area

The qualified team at Otto Rosenau & Associates, Inc., provides objective and competent construction assessments and materials testing to organizations and homeowners throughout the Seattle and Renton, WA, area.

Our in-house laboratory is capable of testing a variety of materials, including:

  • Asphalt
  • Concrete
  • Fireproofing materials
  • Masonry
  • Soils
  • Steel

By testing materials during the construction process, you can build with confidence knowing that your final project will conform to building specifications, codes, and standards.

Trust Our Capable Lab

In our efforts to provide high-quality services, our team is continually looking for ways to improve our testing standards and techniques. When you trust us with your materials testing, you benefit from leading edge services.

ORA participates in inter-laboratory proficiency testing programs to continually assess the quality and uniformity of our test results. ORA presently participates in programs for:

  • Concrete and concrete masonry units (CMUs) as administered by Cement and Concrete Reference Laboratory (CCRL)
  • Aggregates — coarse and fine hot-mix asphalt — ignition oven and marshall design, and soils as administered by the American Association of State Highway and Transportation Officials (AASHTO/AMRL)

All of our testing procedures are performed with accuracy in mind. We maintain and calibrate our equipment in accordance with our quality system manual, and all procedures are performed in accordance with the strict procedures and guidelines of:

  • American Association of State Highways and Transportation Officials
  • American Concrete Institute
  • American National Standards Institute
  • American Society for Testing and Materials
  • American Society of Nondestructive Testing
  • American Welding Society
  • International Code Council

In short, we provide customers with results they can trust.

Benefit From Our Expertise

With over 60 years of experience in the testing and inspection industry, we’re confident that our materials testing services can contribute to the success of your project. From initial preparation to site development, our assessments help build safer communities throughout the Pacific Northwest.

When you’re ready to move your project forward, reach out to Otto Rosenau & Associates, Inc., for all your site inspection and materials testing needs. Located in Seattle, WA, we are proud to also serve Renton and the surrounding areas.

Trust us with your next project to ensure everything goes according to plan. Contact us today!