Special Inspections + Materials Testing

Tectonic offers more than thirty years of experience as an accomplished, multi-disciplined professional engineering firm uniquely equipped with in-house materials testing facilities and a sizable special inspection (SI) crew. We have offices and licensed materials testing laboratories located in New York City and the Hudson Valley region of New York State to respond to tasks expeditiously.

The predominant accreditors in the industry license Tectonic, namely:

  • International Accreditation Service as a Special inspection Agency in all SI categories
  • Licensed by the NYC Department of Buildings as a Class 1 Special Inspection Agency in all SI categories.
  • Laboratory Licensed by the NYC Department of Buildings as a Concrete Testing Lab
  • Laboratory accreditation by the National Institute of Standards and Technology (NVLAP)
    under ISO/IEC 17025:2005
  • Laboratory accreditation through AASHTO under ASTM E-329 and other standards
  • Qualified as a commercial laboratory to conduct materials testing for the U.S. Army Corps
    of Engineers.

Tectonic maintains a robust portfolio of work with public agencies at the Federal, State and Local tiers; the A/E/C sector and private clients involving construction inspection and materials testing services from transportation and infrastructure to all types of buildings and public spaces.


Special inspections are the monitoring of the materials and workmanship that are critical to the integrity of the building structure to assure compliance with approved plans and specifications as well as with the prevailing building code. Tectonic provides this service by professionals with highly specialized skills and qualifications. Tectonic is one of the first firms to be accredited as a Class 1 Special Inspection Agency to perform every special inspection category by the NYC Department of Buildings.

Tectonic employs a continually growing roster of certified special inspectors. Whenever possible, we assign multi-disciplined technicians to cover several tasks in an effort to control cost and make efficient use of time. Various types of facilities, including:

  • Residential Properties / Luxury Towers / Public Housing
  • Cultural Institutions / Museums / Theaters
  • Commercial / Retail / Industrial / Office Buildings
  • Schools / Libraries / Auditoriums / Gyms – Elementary and Intermediate; Middle and High Schools; Vocational, Colleges and Universities
  • Recreational Centers / Parks / Public Spaces
  • Medical Centers / Hospitals / Healthcare Clinics
  • Transportation / Transit-Related Facilities
  • Warehouses / Distribution Centers
  • Telecommunications / Energy Structures.


As an added value of our services to our clients, Tectonic maintains two state-of-the-art, licensed materials testing laboratories in Astoria, Queens (NYC) and Newburgh, New York. Our laboratories comply with rigorous testing procedures using modern, reliable and routinely calibrated equipment by experienced, qualified personnel under the direction of a licensed Professional Engineer. Tectonic is qualified to conduct testing of Hot Mix Asphalt, Soil, Aggregate, Sprayed Fire-Resistive Material, Portland Cement Concrete and Masonry. Our licensed laboratories utilize its proprietary materials database; an automated data reporting system which distributes our laboratory testing results directly to the client. As a leading materials testing firm, Tectonic also designs and/or provides:

  • GPR and Underground Utility Locating Services
  • Pull, Anchor and Bond Strength Tests
  • Air and Water Infiltration Tests
  • Floor Evaluations
  • Asphalt and Concrete Coring


Mark A. Stier, P.E., P.G.
Executive Vice President Director – Corporate Office Technical Discipline Departments
Ayman Baki, P.E.
Executive Vice President, Transportation & Construction Management – New York City

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