Special Inspection and Materials Testing Services

Special inspection and materials testing services are critical to maintain quality construction and identify any construction elements that do not meet the required specification of a project. Our construction inspection and laboratory testing team have provided materials testing services on hundreds of commercial and public buildings,military infrastructure, bridge, highway, airfield, stadium, and mid and high-rise building construction projects. HMA's laboratory staff are certified through ACI for soils, concrete, mortar, grout, asphalt, and other construction materials.

Our in-house and mobile laboratories are fully equipped for testing geotechnical and construction materials. Laboratory tests are performed by experienced technicians and the results are reviewed by registered professional engineers. We maintain a very strict quality assurance program for testing, which has been reviewed and accepted under ISO 17052.

HMA's own quality assurance program is supplemented with inspection by governmental agencies, including Washington Association of Building Officials, and the Army Corps of Engineers to verify acceptance of our testing laboratories for work performed for their respective agencies and projects. Our laboratories are accredited by the American Association of State Highway and Transportation Officials (AASHTO), the International Accreditation Service (IAS), and the Cement and Concrete Reference Library (CCRL).

Our Testing & Inspection Services include:

Placement of Reinforcing Steel
High Strength & Expansion Bolting
Asphalt & Concrete Paving
Concrete Placement
Steel Construction
Masonry Construction
Pre-Stress Concrete
Spray-applied Fireproofing
Concrete Substrate Testing
Fabrication Inspection
Site Grading/Earthwork
Foundation Excavations
Structural Fill Placement
Subgrade Preparation
Batch Plant Inspection
Load Testing
Structural Steel & Welding
Insulating Concrete Fill
Seismic Details
Anchor Proof Testing
Drainage Systems
Erosion and Sediment Control
Drilled Pier and Pile Construction
Field Instrumentation
Soil Improvement
Soil Resistivity
Steel Non-destructive Testing
Cold-formed Steel Framing
Wood Framing/Shearwalls
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Redmond Office:
9644 153rd Ave NE, Suite B8
Redmond, WA 98052
Hawaii Office:
2045 Lauwiliwili Street, Suite 1301
Kapolei, HI 96707
Texas Office:
12801 N. Stemmons Fwy, Suite 907
Farmers Branch, TX 75234
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