JMJ Construction Inc. is a recognized market leader in the design-build of Mechanically Stabilized Earth Structures (MSE) and Retained Soil System Structures (RSS) over the last 15 years in the Greater Toronto Area. JMJ Construction Inc. applies its geotechnical and structural engineering expertise to develop customized, design-build solutions for foundation, earth support, and grade separation challenges. For projects in transportation, commercial building, industrial or municipal utilities, we bring to bear over skilled Professional Engineers who have the creativity, skills and focus to save you time and money.