Pennsylvania Office

2175 Macdade Blvd., Holmes, PA 19043


This Pennsylvania Office of GRL Engineers provides pile and drilled shaft testing services and analyses in Eastern Pennsylvania, Eastern New York*, New Jersey, Delaware, Maryland, District of Columbia, and Northern Virginia. Contact for additional information.

Contact Us
Telephone: (610) 459-0278
Fax: (610) 459-0279

Eastern Pennsylvania, Eastern New York*, New Jersey, Delaware, District of Columbia, Maryland, Northern Virginia, Western Connecticut

Contact us


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Schedule a Lunch and Learn

GRL is internationally recognized for major contributions to the deep foundation area of expertise. Choose from a variety of testing topics and GRL will dedicate an hour to educating and engaging with your staff. Please contact for more information or to arrange a lunch and learn program.

Largest Transportation Design-Build Project in the US
The GRL Pennsylvania office performed a variety of testing services on the $3.9 Billion project. The bridge was awarded the national winner of the AISC 2020 Prize Bridge Awards and was featured in the History Channel’s “Project Impossible” series.