Frequently Asked Questions

True French drains collect groundwater below the surface using perforated 4-inch pipe wrapped in fabric and surrounded by clean #57 stone. Surface drains only redirect runoff that's already pooling. French drains prevent water from reaching foundations by intercepting it underground where saturation originates.

Coastal Virginia receives concentrated rainfall during storms and nor'easters that saturate soil quickly. Systems must move high volumes of groundwater away from foundations before hydrostatic pressure builds. Proper pitch and stone volume ensure drains don't overwhelm during extended rain events common to Hampton Roads.

Complete installations include a cast iron primary pump, sealed basin lid to reduce crawl space humidity, check valve, and high-water alarm. Battery backup systems keep protection running during power outages. Every system includes a homeowner walkthrough explaining operation and maintenance.

Foundation drainage becomes necessary when groundwater saturates soil around footings despite proper grading. Clay-heavy soils and high water tables in Hampton Roads often require subsurface collection because surface grading alone can't intercept water traveling underground toward the foundation.

Perimeter drains capture groundwater before it seeps through crawl space walls or rises through soil. Removing moisture at the source keeps humidity levels below thresholds where mold grows and wood absorbs enough water to decay. This protects floor joists and indoor air quality simultaneously.

Inspections identify where water enters the property, how soil and grading affect flow, and which foundation areas face the highest risk. You'll receive a clear explanation of the problem's cause and a customized solution recommendation. There's no pressure or unnecessary upselling during the evaluation.

Schedule 40 PVC resists crushing under soil weight and doesn't corrode or collapse over time. Corrugated pipe traps sediment in ridges and collapses when soil settles. Solid-wall PVC maintains full flow capacity and lasts decades longer, extending runoff 15 to 25 feet reliably.

Dry wells are sized based on roof square footage and local rainfall intensity to absorb peak stormwater volume. Water disperses into surrounding soil between rain events. In areas with slow drainage, pump stations provide backup protection to prevent overflow during back-to-back storms.

The lifetime warranty covers qualifying French drain installations performed using proper materials and techniques. It protects against system failure due to workmanship issues. Coverage reflects confidence in engineered drainage solutions designed for long-term performance rather than temporary fixes.

Yes, water collecting near foundations increases hydrostatic pressure against walls even when standing water isn't visible. Soil saturation causes uneven settling and expansion cycles that stress concrete over time. Correcting grading directs water away before pressure builds enough to create structural movement.

Standing water after rain, visible moisture on foundation walls, musty odors, or condensation on HVAC ducts indicate groundwater intrusion that vapor barriers can't stop. Perimeter French drains intercept water before it enters, while barriers only limit evaporation from soil already saturated underneath.

Repairs address existing cracks and settlement caused by past water intrusion, while drainage corrections stop the moisture source. Fixing structure without correcting drainage allows problems to return. Coordinating both services protects the investment by eliminating the cause and repairing the damage simultaneously.