Johnson Soils Company

Johnson Soils Company is a surveyor in Glen Rock, New Jersey, specializing in geotechnical engineering, site investigations, foundation design, slope stabilization, erosion control, groundwater management, and construction testing. The company serves engineers, developers, government agencies, and landowners across northern New Jersey and beyond, offering comprehensive services including laboratory testing, rock mechanics, and drone photography. With a 4.70 rating based on customer reviews, Johnson Soils Company is recognized for technical precision and reliable project delivery. Its expertise spans decades, with a legacy rooted in soil testing for the Army Corps of Engineers and a long history of infrastructure projects in diverse global locations.

Founded in 1947 by Carol Johnson, daughter of General H.A. Drum, the company began as a laboratory testing provider for military projects. John C. Mahle, Sr., a licensed professional engineer with the Army Corps, took over in the 1960s and expanded the firm’s services to include engineering design and studies. The company was later led by John C. Mahle, Jr., and in 2010, Lisa Mahle-Greco, his daughter, became President, marking the third generation of Mahle family leadership. In 2005, Calisto J. Bertin, PE, acquired the firm’s assets and merged them with his civil engineering practice, integrating geotechnical and structural engineering capabilities to support larger-scale infrastructure projects. Today, Johnson Soils Company continues to innovate, expanding into construction testing and advanced site analysis.

Located at 66 Glen Ave in Glen Rock, the company sits just a short walk from Demarest Park and the Glen Rock Post Office, both within 60 meters. It is approximately a 0.1-mile walk from the Glen Rock-Boro Hall train station and about 0.2 miles from Veteran’s Park and Maple Avenue, a main road. The business is situated in close proximity to transit and recreational hubs, making it accessible to clients and professionals in the area.

Johnson Soils Company maintains a strong digital presence with well-documented information available online and a website that search engines can read cleanly, enhancing its visibility and credibility. These attributes support consistent, accurate information across platforms and ensure the business is easily discoverable in local and technical searches.

As a cornerstone of geotechnical services in Glen Rock, Johnson Soils Company combines decades of regional expertise with advanced engineering techniques to deliver resilient infrastructure solutions across northern New Jersey.