Basement Waterproofing Across Nebraska, Iowa, Kansas & Missouri.

Exterior waterproofing installs a membrane on the outside of the foundation wall, paired with drain board and a footing drain, to stop water before it contacts the wall. Interior waterproofing installs a drain channel and sump system inside the basement to capture water that has entered or is entering at the cove joint, then routes it out before it can flood the floor. Exterior is more comprehensive; interior is faster, less disruptive, and appropriate for most residential situations where the source is hydrostatic pressure rather than active wall failure.

A French drain is a perforated pipe buried in gravel, sloped to daylight or a sump, that intercepts groundwater before it builds up against the foundation. An exterior French drain at the footing is the backbone of most exterior waterproofing systems. An interior French drain (drain-tile) does the same thing inside the basement, below the slab at the cove joint, and routes water to an interior sump.

Customized Repair Estimate after on-site inspection reflects your actual scope.

Interior drainage installation can be done year-round. We work inside the heated basement regardless of outside temperature. Exterior excavation is weather-dependent and typically scheduled for the frost-free season. If you have an active water problem in winter, interior drainage is the right immediate answer among Epp's basement waterproofing solutions.

A documented waterproofing system with a warranty can be a positive for resale. Buyers and their home inspectors read a basement with documented, warranted waterproofing differently than an unaddressed wet basement. We provide written warranty documentation, and the warranty transfers to a new owner at no charge when a Warranty Transfer Request is submitted within 90 days of the property transfer.

Yes. Epp installs egress windows as part of its basement work, and the installation carries its own written warranty, set out on the warranties page. Epp does not do glass-only repairs on existing basement windows.