Underpin Settling Foundations With Engineered Steel Piers to Load-Bearing Strata
Epp Foundation Repair has driven engineered piers through Nebraska loess and Kansas clay since 1994. Helical, push, and slab piers, matched to the soil and the structure.
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A local specialist will inspect your foundation, walk you through the findings, and send a clear estimate, no cost, no pressure.
Foundation Underpinning: how it works and when it's the right call.
Foundations settle because the soil under the footing fails to carry the structural load. The footing is doing its job, spreading the building's weight over a wider area, but if the soil beneath that wider area is weak, organic, fill, or seasonally expansive, the footing moves with it. Loess soils across eastern Nebraska and western Iowa are particularly prone to settlement when wet because the loose silt structure collapses under load once water reduces particle friction (hydroconsolidation). Expansive clays farther south swell and shrink with moisture, lifting the foundation in spring and dropping it in fall until cumulative differential movement cracks the structure. Underpinning bypasses the failing soil. A steel pier is driven, pressed, or torqued through the weak zone until it reaches a load-bearing layer, typically dense glacial till in Nebraska and Iowa (50 to 100-plus blow counts on a standard penetration test), or bedrock in some Missouri locations. Once the pier reaches refusal, meaning it cannot advance further under the engineered driving force, the structural load transfers from the failing soil to the pier and down to the competent layer. Lift is a secondary operation: once piers are in and load-transferred, hydraulic rams can attempt to raise the foundation toward original elevation. Lift success depends on soil failure mode, structure age, and how brittle the existing construction has become.
What are the three different types of foundations and which one does my house have?
Related to what you are reading. Our team covers the same ground on camera.
How we install foundation underpinning.
Step 01.Site Assessment and Pier Plan
Epp Foundation Repair surveys the foundation with a laser level to map differential settlement to the quarter-inch, photographs all crack patterns, reviews the original construction (footing size, structure weight, soil type from county records), and decides between helical, push, or slab piers, and how many. Helicals work well in soft soils where push piers cannot get adequate reaction, and they are removable, code-listed, and ICC-evaluated. Push piers install faster on heavier structures (full basement homes with masonry above), but require enough structural weight to push against.
Step 02.Engineered Plan and Permit
For projects where a structural engineer is involved (multi-family, commercial, or homeowner request), Epp coordinates the engineered drawing showing pier count, type, spacing, depth target, and bracket detail. The crew pulls local permits where required. The homeowner receives written confirmation of the scope before any work begins. No verbal change orders mid-job. Epp documents lift in laser-level measurements before and after, and provides written results.
Step 03.Access Excavation
The crew hand-digs or mini-excavates access pits at each pier location along the exterior of the footing (or interior for some slab piers), typically 3 by 3 feet by 4 feet deep. The footing edge is exposed for bracket attachment. Spoils are stockpiled for clean backfill after the install.
"Stabilization is the contract. Lift is the goal we work toward and document, not the promise we sell. Anyone who guarantees you a half-inch of lift before they've put a laser on your footing is selling you something they can't deliver."
Care and expertise from a team that's been doing this since 1994.
Epp Foundation Repair is locally owned and operated, with crews dedicated exclusively to foundation, basement, and concrete work across the Midwest.
Foundation repair, waterproofing, and concrete leveling are our entire focus, not a sideline.
Three decades of experience with Midwest soils, basements, and weather conditions.
Recognized in 2011 and 2016 for ethical business practices and customer transparency.
Every repair comes with a written Epp warranty, from 1 year to the lifetime of the structure depending on the product.
Answers to common questions about Foundation Underpinning.
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Foundation Repair warning signs this solution resolves.
Each problem sign below is a symptom this solution is engineered to fix. See how we diagnose it before we recommend this method.
Sinking Foundation
Epp Foundation Repair has stabilized sinking foundations across Nebraska, Iowa, Kansas, and Missouri since 1994. Starting with what's actually moving underneath, not a sales sheet of piers.
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Sagging Floors
Epp Foundation Repair has diagnosed and repaired sagging floors across Nebraska, Iowa, Kansas, and Missouri since 1994. BBB A+. BBB Integrity Award 2011 and 2016.
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Cracked Brick Veneer Diagnosed and Stabilized
Epp Foundation Repair has read brick veneer crack patterns across Nebraska, Iowa, Kansas, and Missouri since 1994. Most stair-step cracks are not a brick problem; they are a foundation problem the brick is reporting.
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Bouncing Floors
A floor that flexes or bounces when you walk across it. This points to lost support underneath, often from foundation settlement or sagging structural members. The bounce gets worse as the support keeps shifting.
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Bowing Walls
Inward deflection in a basement wall. Even a fraction of an inch. Indicates lateral soil pressure exceeding the wall's capacity. The pressure doesn't go away; it compounds season by season until the wall requires reinforcement or replacement.
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Carpenter Ant Infestation
Carpenter ants do not eat wood, they nest in it. They look for wood that is already damp or softened. Their presence is often a sign that a crawl space or foundation area is holding water it should not.
Learn moreServing Nebraska, Iowa, Kansas & Missouri.
Local crews based in five regional offices, dispatched daily across four states. If your town isn't listed, call us: we likely serve your area.
- Omaha, NE
- Lincoln, NE
- Topeka, KS
- Sioux City, IA
- Bellevue, NE
- St. Joseph, MO
- Council Bluffs, IA
- Grand Island, NE
- Papillion, NE
- Kearney, NE
Take the first step toward a healthy home.
A straightforward path from initial inspection to completed repairs.
Schedule your inspection.
A local specialist visits your home, evaluates the foundation, and answers your questions on site. No cost, no obligation.
Receive an estimate based on your needs.
We provide a clear, Customized Repair Estimate with a scope of work tailored to your home's specific issues. Typically within one business day.
Get your repairs.
Our own trained crews complete the work on schedule and back it with a written Epp warranty, set out in your contract.
Get the free settlement guide
Most foundation problems announce themselves early. This guide shows you what to look for before you call anyone.
- ✓A room-by-room checklist you can walk the house with
- ✓Which cracks can wait, and which deserve a closer look
- ✓How pier repair actually works, in plain language
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- A local foundation specialist on site
- A complete walk-through of the findings
- A Customized Repair Estimate within one business day
- No cost, no obligation, no high-pressure sales
Expert guidance on protecting your home.
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Five regional offices across the Midwest.
St. Joseph, MO 64506

