Yard Drainage That Stops Water Before It Reaches the Foundation.

Walk the perimeter during or immediately after a 1-inch rain event. If water pools within 6 feet of the foundation directly below a downspout, around a low spot in the lawn, or along a path where neighbor-property runoff crosses your lot, the diagnosis is upstream. Yard drainage is likely the right tool. If water emerges from a basement wall crack or the cove joint without any corresponding surface water visible outside, the foundation itself is the issue and interior or exterior waterproofing is the right tool. Epp walks every property during a rain before quoting, which means the diagnosis comes from what the water is actually doing, not what the homeowner suspects.

Components are priced individually. A catch basin with grated top installed runs $400 to $800 each. Buried 4-inch solid PVC discharge pipe runs $20 to $60 per linear foot. Exterior french drains run $30 to $80 per linear foot. Downspout extensions to splash pads run $50 to $150 per run. Buried downspout discharge with a pop-up emitter runs $100 to $200 per run. A full multi-zone residential yard drainage system totals $3,000 to $12,000 depending on lot complexity. Written estimate after on-site inspection reflects your scope.

Three scenarios. First, when grading itself is the source and a landscape contractor regrading 30 perimeter feet for $1,200 to $1,800 will solve the problem for less than $5,000 of drain pipe would. Epp will say so. Second, when the perched water table already sits at or above the proposed drainage depth; the system becomes a passive water table rather than an interceptor, and interior drain tile with a sump pump is the correct tool. Third, when the problem is a single bad downspout. A $30 extension and 20 minutes of homeowner time replaces a $3,000 multi-component drainage system.

Because the gravity contour of a saturated lot is the only honest diagnostic of where water actually moves. A yard walked in dry weather looks like topography on a map; the same yard walked during a 1-inch rain reveals the exact flow lines, low spots, neighbor runoff crossings, and downspout discharge zones that drive a wet basement. About one in three yard drainage inquiries ends with a Customized Repair Estimate recommending a $200 downspout extension and no other work. A diagnosis that's only possible from a rain-event walk, and a recommendation tied directly to the two BBB Integrity Awards Epp has won.

Three adjacent scopes. Epp does not regrade the yard. Moving substantial soil to reshape lot drainage contours is landscape or excavation contractor scope, and on flat lots where regrading the perimeter would solve the problem for $1,500, a landscape contractor will do it cheaper. Epp does not replace gutters or downspouts themselves. Gutter contractor or handyman scope; Epp installs extensions to existing downspouts and notes in the Customized Repair Estimate when the underlying gutter system needs upgrading. Epp does not relocate irrigation systems. Conflicts are marked during utility locate, but moving sprinkler heads and lines is irrigation contractor scope.

Almost never without municipal approval, and approval is rare across Nebraska, Iowa, Kansas, and Missouri jurisdictions. Most local codes prohibit private drainage tie-ins to public storm systems because of capacity and contamination concerns. Acceptable discharge points include daylight termination at least 10 feet from the foundation with a riprap splash pad or pop-up emitter, a dry well sized to the contributing area, or a tie-in to an existing sump pump discharge. Epp confirms discharge code at permit pull for any municipality where it's not already documented.

Solid PVC buried discharge pipe lasts 40 to 50 years with no maintenance. Catch basins last 25 to 35 years and need an annual fall cleanout to clear the inlet grate of leaves. Exterior french drains last 25 to 35 years when wrapped properly in non-woven geotextile filter fabric. Epp uses 4-ounce fabric in eastern Nebraska and Iowa loess soils and 6-ounce in Kansas and Missouri expansive clay, because clay particles migrate more aggressively into the gravel envelope. Buried downspout discharge lines last 30 to 40 years with annual leaf cleanout at the inlet.

Existing yard drainage continues to function in winter as long as the discharge point isn't ice-blocked. New installation, however, is weather-dependent. Trench excavation in frozen ground is practical to about 4 inches of frost depth; below that, it requires mechanical thawing that adds cost and time. Epp typically schedules yard drainage installation between April and November in the NE, IA, KS, and MO region. Emergency winter work is possible but priced 25 to 40% higher because of the additional excavation effort, and the work is sequenced around the freeze line.

Let's take the first step toward a healthy home.

A local specialist will inspect your foundation, walk you through the findings, and send a clear estimate. no cost, no pressure.