Drainage System Installation
in Greenville, SC
Greenville Elite Grading & Excavation has been installing drainage systems for properties across the Greenville, SC area for over 10 years. Drainage system installation covers the pipes, catch basins, and French drains that move groundwater and surface runoff away from a property when grading alone can't handle the volume. Greenville receives 47.2 inches of rain annually, with the wettest months concentrated in summer, and the area's dense Piedmont clay drains slowly enough that many lots need engineered drainage rather than slope correction alone. Properties near low-lying areas or downhill from larger uphill lots are especially prone to water volume that exceeds what surface grading can redirect.
A properly installed drainage system protects a foundation from the kind of chronic moisture exposure that leads to cracking, settling, and mold growth in crawlspaces — repairs that typically run many times the cost of the original drainage work. Greenville Elite Grading & Excavation sizes and slopes every system based on the actual drainage area it serves rather than installing a standard pipe size regardless of the lot's specific water volume.
Drainage Services We Provide
French Drain Installation
French drains route groundwater away from foundations and low-lying yard areas through a buried perforated pipe surrounded by gravel. We size the pipe diameter and trench depth based on the drainage area and expected water volume, not a one-size default.
Surface Drain & Catch Basin Installation
Catch basins collect surface water at low points and route it through solid pipe to an appropriate discharge point, which is often the fastest solution for a yard with a persistent wet spot. We install basins at measured low points rather than guessing at placement.
Downspout Extension & Discharge Routing
A large share of foundation moisture problems trace back to downspouts discharging directly onto ungraded soil next to the house. We extend downspout discharge points well away from the foundation and tie them into the broader drainage system where needed.
Yard Drainage Correction
Yards with chronic wet spots or runoff from neighboring properties need a combined approach of grading and buried drainage. We evaluate whether the fix is a slope correction, a drainage pipe, or both before recommending a scope.
Sump Pump & Crawlspace Drainage
Crawlspaces in older Greenville homes, particularly those built before modern vapor barrier standards, are prone to moisture intrusion that a sump system helps manage. We install interior drainage and sump systems that work in tandem with exterior grading and pipe drainage.
Retaining Wall Drainage
Retaining walls need drainage behind them to relieve hydrostatic pressure, since a wall without proper drainage is prone to bowing or failure over time. We install drainage aggregate and perforated pipe behind retaining walls as part of the excavation and construction process.
Types of Properties We Serve
Residential Homes
Homeowners typically call after noticing standing water, a wet crawlspace, or erosion along a foundation. We evaluate the full property before recommending a system, since the most visible wet spot isn't always where the underlying problem originates.
New Construction
Builders need drainage systems installed and tested before landscaping and hardscaping cover the work, since access becomes difficult once a project is finished. We coordinate drainage installation with the broader grading and site prep timeline.
Commercial Properties
Commercial sites carry stormwater management requirements tied to impervious surface ratios and detention requirements set by Greenville County. We install drainage systems that meet approved civil engineering plans and document work for inspection.
Properties Near Drainage Easements
Lots near the Reedy River watershed or mapped county drainage easements often have restrictions on what modifications are permitted. We coordinate with Greenville County Public Works before installing systems near these areas.
Some of Our Customer Reviews
"Our crawlspace stayed dry through the whole rainy season after they put in the drainage system."
— Patricia N., Mauldin, SC
"They found the actual source of our wet yard instead of just installing a drain where the water was pooling."
— Tom G., Greer, SC
"Downspout extensions alone fixed a problem we thought needed a full drain system — saved us money."
— Angela F., Five Forks, SC
Drainage System Installation FAQs
How do I know if I need a French drain or just regrading?
Most standing water issues resolve with slope correction alone; a French drain is typically needed when the water volume exceeds what surface grading can redirect, which we assess during a site evaluation.
How long does drainage system installation take?
Most residential French drain or catch basin installations take one to three days depending on the length of pipe run and site access.
Will a drainage system prevent foundation cracks?
Managing water away from a foundation significantly reduces the moisture exposure that contributes to cracking and settling over time.
Do drainage systems require a permit?
Permit requirements depend on scope and proximity to mapped drainage easements or floodplain areas.
How deep are French drains typically installed?
Depth depends on the drainage area and slope available, though most residential drains are installed 12 to 24 inches below grade.