Principio Plant

Diamond Materials is a leading heavy highway and site development company based in Delaware. Our offerings include asphalt production, soil cement stabilization, utility construction, marine services, on-site crushing and screening, cold in-place recycling, concrete curb and sidewalk inbstallation, demolition, clearing and grubbing, milling, and site development. With a commitment to quality and excellence, we serve projects in Delaware, New Jersey, Pennsylvania and Maryland.

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Main Office: (302) 658 6524

Office: 242 North James Street, Ste 102, Newport, DE 19804

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