What We Do


The services we perform include:

Nondestructive Testing Services
Construction Testing Services
Laboratory and Field Inspection
Metallurgical Examinations
Materials Testing
Product Testing Services
Professional Engineering Services
Radon Testing and Mitigation
Geotechnical Investigations
FAA Repair Station

Complete Services 

Who We Are


Testing Services, Inc. (TSI) was formed in 1996 by Carl Naylor (ASNT Level 3 steel inspector with 35 years experience) and Tom Poole (30 years experience in the construction inspection industry) to form a company that provides all of your materials testing needs. Our on-staff professional engineer (PE) has 45 years of experience in geotechnical engineering and construction materials testing. We also have Level 2 NDT inspectors, ACI certified inspectors, and DEP certified radon inspectors as part of our team.

Where We Go


TSI performs most of its inspection work within a 100 mile radius of Harrisburg but has performed testing and inspection projects nationally and internationally. We pride ourselves on being a community partner and global traveler.