Plant: 924 South Heald Street, Wilmington, DE 19801     Phone: (302) 655-1565     Fax: (302) 655-6331

                Office: 242 N. James St., Suite 102, Newport, DE 19804     Phone: (302) 658-6524     Fax: (302) 658-0684
     Diamond Materials is located near the Port of Wilmington and serves Northern Delaware, parts of Chester and Delaware Counties in Pennsylvania and Salem County, NJ. The company is uniquely qualified to provide a complete and full line of site construction services, asphalt products, and demolition of buildings and bridges. Our experienced leadership, quality personnel, technical expertise, and commitment to the customer ensure job satisfaction

    Diamond Materials is a full service and well equipped site contractor capable of successfully completing small or large projects. From a backhoe to a thirty-five cubic yard scraper, we can meet the customers needs and create what the project management teams wants. Achieving results, strict attention to detail, and compliance with all laws and regulations help assure an environmentally sound and quality finished product.

President's Message:

              Diamond Materials, LLC is a full service and well-equipped contractor capable of successfully completing small or large projects. For our company to grow, it is important that we meet our customers needs by using experienced personnel with a commitment to providing quality services and products that our customers demand.

Richard Pierson Jr.

Partial Listing of Clients

Barclay White Skanska Inc.

City of Newark

City of Wilmington


Delaware City

Delaware River & Bay Authority

Delaware Department of Transportation

Delaware River Port Authority

Home Depot

Jeffrey M. Brown Associates, Inc.

New Castle County

New Castle County Airport

New Castle Conservation District

Port of Wilmington

Town of Newport

- An Equal Opportunity Employer -

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