We do the groundwork.

When your project depends on excavation being done right the first time, you need a contractor who understands the schedule, the site, and the challenges before they become delays. That's how we've worked for over 40 years on the East End.

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Services

  • Excavation

    Excavation

    Site preparation, foundation excavation, earthmoving, and grading.

  • Underground Utilities

    Underground Utilities

    Water, sewer, septic, drainage, and utility installation.

  • Drainage

    Drainage

    Stormwater management, drainage systems, and erosion control.

  • Fine Grading

    Fine Grading

    Residential and commercial demolition with complete site clearing.

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Roots on the East End of Long Island

Founded in 1928, Cardo Site Development has been providing trusted excavation and site development services across the East End for nearly a century. For more than 40 years, we have partnered with many of the region's premier residential and commercial builders, delivering dependable demolition, excavation, drainage, grading, and earth moving services. Built on hard work, experience, and long-standing relationships, we approach every project with the same commitment to quality that has defined our company from the beginning.

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What Our Clients Say

  • "The Parkridge Organization has been using Cardo for the past 25 years. They were especially helpful with the Manorville Plaza project because of the challenges of poor soils and high groundwater. Once again they came in on budget and exceeded our expectations."

    Gary Schneider, Partner at The Parkridge Organization

  • “Cardo was very responsive and worked cooperatively with the other trades onsite. The quality of their work is impeccable and I look forward to working with them on the next project.”

    Chris Faha, Project Supervisor at J. Petrocelli Contracting

  • “Cardo has been our sitework contractor on three major projects with sales approaching 150 million dollars over the past twenty years. Their crews are professional and talented and their pricing is competitive. We would not consider using anyone else for our site development needs.”

    Bob Havasy, Senior Partner at Blue and Gold Homes