Specialty Contractor- GeoStabilization International

Experts for Complex Geohazard Projects

GeoStabilization International is the nation’s leading specialty contractor focused exclusively on geotechnical stabilization and geohazard mitigation. When conventional construction methods fall short, our design-build teams deliver engineered solutions for rockfall, slope instability, erosion, and foundation challenges. With quick response, proprietary equipment, and two decades of proven expertise, GSI partners with general contractors, DOTs, and engineering firms to stabilize the most difficult sites.

Soil Nail Launcher installing nails on a roadside slope.

Why Choose GSI

Design-Build Delivery: Integrated engineering and construction ensure seamless coordination from start to finish.
Quick Response: Nationwide crews mobilize rapidly to address critical geotechnical issues.
Proven Expertise: Specialized in high-risk, steep-slope, and limited-access environments.
Innovative Technologies: Exclusive systems like SuperNails™ and advanced soil nail walls.
Safety and Quality: Industry-leading safety performance backed by rigorous field standards.
Trusted Collaboration: Supporting general contractors, engineers, and owners on infrastructure projects across North America.

Our Specialty Capabilities

Rockfall Mitigation: Design-build solutions to contain, deflect, or stabilize rock slopes.
Slope and Landslide Stabilization: Permanent repairs using soil nails, rock bolts, shotcrete, and drainage systems.
Retaining Wall Construction and Repair: Engineered walls for roadway, commercial, and utility projects.
Foundation Support Systems: Micropiles, anchors, and underpinning for unstable or variable ground.
Erosion and Drainage Control: Long-term surface and subsurface water management.
Bridge and Embankment Stabilization: Reinforcement for critical transportation and energy corridors.
Remote and Difficult-Access Repairs: Specialized rigs and rope-access crews for steep or sensitive terrain.

Our Proven Process for Project Delivery

1

Assessment

Our engineers conduct rapid, no-cost site assessments to evaluate conditions and risks.

2

Design-Build Engineering

We design custom stabilization systems tailored to your site’s geology, loads, and operational needs.

3

Construction & Access

Specialized equipment allows safe construction on steep, restricted, or unstable terrain.

4

Verification & Monitoring

Comprehensive inspection and quality control ensure every repair meets design intent and long-term performance standards.

The GSI Advantage

Speed: Quick response and nationwide mobilization for urgent and planned stabilization needs.
Certainty: Single-source design-build delivery that reduces risk and ensures accountability.
Safety: A culture of continuous training and jobsite vigilance.
Experience: Thousands of successful specialty construction projects across every terrain and climate.
Reliability: The trusted specialty contractor for general contractors, DOTs, and engineering firms nationwide.

Client Reviews

Foundation Grouting and Structural Repair for Homeowner

I wanted to drop you a quick note. Late last year I had Tom Szynakiewicz come by and advise me as to what I needed to do to fix my house structure. Tom and GSI were great to work with to find a solution for my structure issues. GSI did an excellent job for us and got us on the right track with the work that was performed. We just sold the home last week, and disclosed the work that was done. We had zero issues with selling the home because it was fixed by GSI. I am very thankful I called and got you guys involved! Thanks again for steering me in the right direction Wayne!

GET IN TOUCH

Contact Us Today

When your project demands advanced geotechnical expertise, GeoStabilization International delivers engineered certainty under pressure. Our specialty teams are ready to assess your site and provide a customized, design-build solution that ensures long-term stability and safety.

Request a site assessment or proposal today.

855.579.0536

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Specialty Contractor

Experts for Complex Geohazard Projects

Why Choose GSI

Our Specialty Capabilities

Contact Us Today

855.579.0536

Our Proven Process for Project Delivery

1

Assessment

2

Design-Build Engineering

3

Construction & Access

4

Verification & Monitoring

The GSI Advantage

Client Reviews

Foundation Grouting and Structural Repair for Homeowner

Contact Us Today

How Can We Help?

***Fees May Apply For Residential Site Visits***

How Can We Help?

How Can We Help?

Our Awards, Certifications, & Memberships

Fees May Apply For Residential Site Visits