Excavation Services

Digging the foundation for your next project

Accurate excavation is critical for safe foundations, utilities, and long-term structural stability. Mims & Son Custom Siteworks provides professional excavation services throughout Saint George, Harleyville, Dorchester County, the Lowcountry, and surrounding South Carolina communities, handling foundation digs, utility trenches, drainage excavation, and general site development with precision and attention to soil conditions. We remove unsuitable material, establish correct depths, and prepare the ground for what’s next. 

Services Include:

  • Foundation excavation
  • Utility trenching
  • Drainage excavation
  • Site &  land excavation
  • Pond excavation
  • Soil removal & relocation


From the first dig to the final grade, we prepare your site for what's next.

Questions Before Starting Your Project

Excavation work in Saint George often involves navigating high water tables and ensuring trench stability in sandy soils, so here's what property owners ask during project planning.

  • What happens if groundwater fills the excavation?

    Dewatering pumps remove standing water so footings can be poured on dry, stable soil, though persistent groundwater may require redesigning foundation depth or installing drainage around the excavated area.

  • How do you prevent trench collapse in sandy soil?

    Trenches are sloped at safe angles based on soil type, or shoring boxes are installed to support trench walls when working depths exceed four feet, which is standard practice in unstable Lowcountry soils.

  • When should excavation be scheduled relative to construction timelines?

    Excavation typically happens one to two weeks before foundation contractors pour footings, allowing time for inspections and any necessary adjustments without delaying the builder's schedule.

  • What determines excavation costs?

    Cost depends on the volume of material removed, the depth and complexity of the dig, soil conditions that affect equipment productivity, and whether spoil dirt is hauled off-site or spread on the property.

  • Can you excavate near existing structures without causing damage?

    Yes, excavation is planned with setback distances that protect existing foundations, septic systems, and utilities, using hand digging or smaller equipment in tight areas where full-size machinery can't operate safely.

Mims & Son Custom Siteworks provides excavation for residential construction, utility installations, and land development projects across the Lowcountry. Discuss excavation needs to review project specifications, soil conditions, and coordination with other contractors involved in your build.