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Building Stability from the Ground Up.

Engineering Stability Before Construction Begins — Delivering Safety Through Construction.

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About Us

FOS (Factor of Safety) Engineering Ltd is a specialized geotechnical, ground engineering, and construction support company dedicated to delivering innovative, practical, and cost-effective solutions for challenging soil, slope, excavation, and foundation conditions.

As Rwanda continues to experience rapid urbanization, increased land utilization, and infrastructure development, projects are increasingly being developed on steep terrain, unstable slopes, and sites requiring deep excavations.

We combine engineering expertise, practical construction experience, and advanced analytical tools to provide solutions from project conception through design, construction, and completion.

Our Vision

To become the leading geotechnical and ground engineering solutions provider in Rwanda and the East African region by delivering safe, innovative, and sustainable engineering solutions.

Our Mission

To provide professional geotechnical engineering services through comprehensive investigations, advanced analysis, innovative design, and practical construction solutions that ensure the safety, stability, and sustainability of infrastructure developments.

The Challenge We Address

One of the most overlooked aspects of construction projects is the early consideration of geotechnical conditions during project planning and design.

Overlooked Assessments

Architectural and structural designs are often completed without sufficient assessment of slope stability, deep excavation requirements, groundwater conditions, or soil bearing capacity.

Costly Consequences

As a result, projects encounter excavation failures, slope instability, building settlement, construction delays, and emergency stabilization works.

Our Solution

We help clients identify and eliminate these risks before construction begins through early geotechnical involvement integrated into the feasibility and concept design stage.

Core Services

Geotechnical Investigation

Site reconnaissance and geological mapping
Borehole investigations
Trial pits and test excavations
Soil sampling and in-situ testing

Earth Retaining Systems

Soil nailing systems
Geogrid Reinforced Soil (GRS)
Sheet and contiguous piling systems
Reinforced concrete retaining walls

Slope Stability Engineering

Slope stability analysis and Design
Landslide investigations
Slope stabilization design and Execution
Risk assessment and mitigation

Laboratory Testing

Soil classification and Atterberg limits
Compaction and CBR testing
Shear strength & Consolidation testing
Permeability and Rock testing

Drainage & Groundwater

Underground drainage systems
Surface water management
Groundwater control
Erosion protection measures

Foundation & Ground Improvement

Shallow and deep foundation design
Pile foundation systems
Soil stabilization and reinforcement
Geosynthetic applications

Construction Support

Site supervision and monitoring
Excavation support and safety systems
Quality control during construction
Real-time geotechnical assessment

Supporting Contractors Through Safe Site Preparation and Construction

At FOS Engineering Ltd, we understand that the highest risks often occur during excavation and substructure construction.

We provide practical engineering support to contractors during site preparation, excavation, earthworks, foundation works, and retaining structure construction to ensure safe and efficient execution.

Our objective is to help contractors safely progress from site preparation to completed substructures while minimizing risks, delays, and additional costs.

Construction Support Services

Site preparation planning
Bulk excavation and cut-fill optimization
Deep excavation support systems
Temporary works design
Slope stabilization during construction
Groundwater control and dewatering
Substructure construction supervision
Geotechnical construction monitoring

Why Choose FOS Engineering Ltd?

Technical Expertise

Specialized knowledge in geotechnical engineering, slope stabilization, retaining systems, foundations, and excavation support.

Risk Prevention

We focus on identifying and mitigating risks before they become costly project problems.

Local Experience

Deep understanding of Rwanda's terrain, geology, rainfall patterns, and construction challenges.

Practical Experience

Unlike many consultants, we understand both engineering design and on-site construction realities.