Heavy Civil Construction — Public & Private Sector
(956) 636-1429Diamond Eight Industries is a full-service heavy civil contractor. From site prep and earthwork to utilities, paving, and land development — we have the crews, equipment, and experience to handle complex projects across South Texas.

Every successful project starts with precise earthwork. Diamond Eight Industries performs mass grading, cut and fill operations, precision excavation, fine grading, land clearing, and full site preparation for commercial, municipal, and land development projects across South Texas. Our GPS-equipped fleet and experienced operators deliver tight tolerances on schedule.

From county roads and municipal streets to commercial drives and land development projects, Diamond Eight Industries delivers road construction and paving that stands the test of time. We self-perform subgrade work, base course, asphalt paving, and concrete paving — keeping your schedule tight and your costs predictable.

Our utilities crews install and replace water, sewer, storm drain, and other underground infrastructure in some of the most challenging environments — active commercial corridors, municipal right-of-ways, and large land development projects. We bring the same precision and accountability to underground work as we do to every other phase of a project.

Diamond Eight Industries delivers high-quality concrete placement for drainage infrastructure, flatwork, and site concrete. Our crews bring the same discipline and attention to detail to every pour — from box culverts and headwalls to retaining walls, curb & gutter, and demolition of existing infrastructure.

Diamond Eight Industries takes raw tracts of land through every phase of civil development — from initial clearing and mass grading through roads, utilities, drainage, and final lot preparation. We work with developers, engineers, and municipalities to deliver finished subdivisions and commercial land developments on schedule and within budget.
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Diamond Eight Industries provides environmental mitigation services to keep projects compliant and on schedule. Our crews handle erosion control, stormwater management, and site restoration in coordination with project engineers and regulatory requirements — from initial permitting support through final site stabilization.
Our estimating team responds within one business day.