Reliable, efficient, and professional grading and drainage services for residential, commercial, and public projects across South Carolina and beyond.
Palmetto Inc., led by CEO Ashley Haddock, is one of the largest and most respected grading and drainage companies in South Carolina. Founded in Spartanburg by two industry veterans, we’ve spent over a decade growing into a trusted company. Many of our crew have been with us since the beginning, and together we’ve tackled projects ranging from Spartanburg courthouses to massive industrial complexes across Greenville and beyond.
Our clients return to us because they know we deliver reliable, high-quality results on every job, no matter the size or complexity.
Based in Spartanburg, South Carolina, we prepare sites for success with dependable grading and drainage solutions tailored to your project needs.

From concept and planning through earthwork, utilities, and finished site, PGDI handles it all. We ensure every component works together for seamless execution

Large-scale or small, commercial or residential, precise grading is the foundation of every successful build. We bring in the right equipment and skill to move dirt efficiently and correctly.

Our storm drain systems and grading practices are designed with compliance, sustainability, and long-term performance in mind, protecting both property and the environment.
At PGDI, we build with durability, performance, and safety in mind. We don’t just move dirt, we manage the entire site development process with precision and efficiency.
Residential subdivisions, custom home sites & neighborhoods
Commercial developments, retail centers, offices, mixed-use
Industrial and infrastructure projects
Turnkey site preparation, including utilities and full site grading
From four-year courthouse projects in Spartanburg to utility lines installed under downtown Greenville streets, our work speaks for itself. Explore some of our recent projects completed across South Carolina
Whether you’re a contractor or developer in Spartanburg or anywhere in SC, we’re ready to help. Contact us today to get started.