Best Jet Grouting Contractors

Schnabel, acclaimed as one of the best jet grouting contractors in America, specializes in delivering top-tier soil stabilization solutions. This expertise is pivotal for clients dealing with unique challenges in their construction endeavors, ensuring soil conditions are optimized to meet specific project demands.

Jet grouting, a hallmark of Schnabel’s services, is exceptionally effective for mitigating groundwater issues in underground constructions. It’s also a reliable technique for strengthening the foundations of existing buildings and offering vital support during excavation projects.

As a leader among America’s jet grouting contractors, Schnabel prides itself on transforming unstable soil into cement-stabilized structures, essential for effective groundwater management and foundation reinforcement.

Schnabel’s vast experience places it at the forefront of jet grouting, equipping the company with the skills and resources necessary to guide clients through intricate site challenges and help them realize their construction goals with success.


Jet grouting, a critical component of soil improvement, involves the on-site blending of soil with injected cement grout to form stabilized soil columns. This process enhances the soil’s structural integrity and decreases its permeability, making it a superior engineered solution for foundation support and groundwater control. Its applications are diverse, including underpinning existing structures and establishing cutoff walls for excavation support.

The technique starts with the drilling of a small-diameter pipe (around 4 inches) to the required depth. High-pressure cement grout, typically around 6,000 psi, is then injected through this pipe. As the pipe is rotated and withdrawn, a circular column of improved soil is formed. The diameter of these columns can be adjusted, providing flexibility in the construction process. These columns can either act as standalone supports or be interlinked to form a barrier against the movement of soil and water.

Jet grouting’s efficiency shines in environments with underground utilities or other obstructions. Its minimal drilling approach allows for easy navigation around these challenges, creating wider soil columns in constrained spaces. This capability positions jet grouting as an ideal solution for soil stabilization in complex underground conditions. As one of the best jet grouting contractors, Schnabel leverages this method to offer adaptable and effective solutions for a variety of construction scenarios.


Children’s Hospital in Minneapolis

Schnabel used jet grout columns as underpinning and excavation support for the construction of an addition to the Children’s Hospital in Minneapolis, Minnesota. The jet grout columns eliminated the need for timber lagging and prevented the loss of sand during the 21-foot-deep excavation.

J Avenue Water Treatment Plant

Schnabel installed 67 jet grout columns to support the expansion of the J Avenue water treatment plant in Cedar Rapids, Iowa. This project required an excavation adjacent to an existing structure. The continuous wall of jet grout columns was successful in retaining the soil and water behind the wall and no measurable settlement of the tank structure occurred.

The Minneapolis Children’s Hospital project was Schnabel’s first application of jet grouting to underpin an existing structure in lieu of traditional hand-dug underpinning pits. The project team was very pleased with the performance of the jet grout underpinning system.

Chuck Conlon, P.E., Children's Hospital of Minneapolis


Schnabel is the sector’s most operationally efficient Geostructural Design & Construction contractor. We optimize efficiencies by leveraging decades of experience and design/build expertise to innovate processes and approaches that are consistently proven to deliver optimal outcomes for our clients.