SSI is a fully licensed California grading contractor. We provide the full spectrum of grading services for clients in the public and private sectors, including residential, commercial, and industrial entities.

Our grading team uses top of the line grading machinery and laser-guided grading equipment to complete each project with pinpoint accuracy. We handle projects of all sizes, so whether you need to grade a large foundation or a small driveway, SSI can complete your job quickly, safely, and cost-effectively.