How long does the repair take?

Epp Foundation Repair completes a typical 5 to 8 pier installation in 2 to 4 working days. The home remains occupied throughout. Excavation is limited to 3-foot by 3-foot bracket pockets at each pier location, and Epp backfills and tamps before leaving the site each day. Window re-installation by the finish trade typically adds another 1 to 2 days after the foundation work is signed off.

Foundation Repair · Problem Signs · Since 1994

Stop Blaming The Windows. The Foundation Moved First

Epp Foundation Repair has diagnosed window and door gaps across Nebraska, Iowa, Kansas, and Missouri since 1994. BBB A+. BBB Integrity Award 2011 and 2016.

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.

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What this symptom means

Gaps Around Windows and Doors: diagnosed and explained.

Epp Foundation Repair has inspected gap-around-window and gap-around-door symptoms in more than 14,000 homes across the Lincoln, Omaha, Grand Island, Norfolk, Des Moines, St. Joseph, and northeast Kansas corridors since 1994. A visible gap between trim and frame. Usually 1/8 inch or wider on one corner. Is almost never a window defect. The window is fine. The rough opening it sits inside has racked out of square because the foundation under that wall moved 1/2 inch to 2 inches relative to the rest of the house. Dave Epp has documented this exact pattern on three out of four service calls for this symptom: the gap is widest at the top corner directly above the lowest point of the foundation. Fix the foundation, the openings square back up.

Gaps Around Windows and Doors diagnosed by Epp Foundation Repair

Catch It Early

Four Signals That Point To Foundation Movement, Not A Bad Window

Early warning signs of gaps around windows and doors on a Midwest home

The gap is widest at one corner of the window or door

Epp Foundation Repair treats a tapered gap. 1/8 inch at one corner widening to 1/2 inch diagonally opposite. As a near-certain indicator that the rough opening has racked. Uniform gaps on all four sides usually mean wood movement, not foundation movement.

Doors stick on one corner, swing free on the other

Epp Foundation Repair confirms racked openings with a 4-foot level on the door jamb. A jamb that is 1/4 inch or more out of plumb over its height is racked, and the foundation under that wall has moved.

Cracks above or below the window run diagonally toward a corner

Epp Foundation Repair installs a crack monitor on diagonal stair-step cracks tied to gapping windows. Movement of more than 1/32 inch over 30 to 90 days confirms active settlement and triggers an underpinning recommendation.

The gap appeared after a wet spring or a dry summer drought

Epp Foundation Repair logs the season of onset on every inspection. Wet-spring onset points to expansive clay heave in Kansas or Missouri. Dry-summer onset on loess soils in Nebraska or Iowa points to shrinkage settlement. The season tells Dave Epp which soil mechanism to address.

Most Common Causes

What causes gaps around windows and doors in Midwest homes.

Differential settlement on loess hilltops (NE, IA)

Epp Foundation Repair tracks differential settlement as the single most common cause of window and door gaps across the Loess Hills of western Iowa and eastern Nebraska. Loess is a wind-deposited silt that collapses up to 15 percent of its volume when it gets wet under load.

Expansive clay heave (KS, MO)

Epp Foundation Repair measures plasticity index values over 30 in the clay soils of northeast Kansas and northwest Missouri. High enough to swell 15 percent volumetrically when wet and shrink back when dry. Where loess drops a corner, expansive clay does the opposite: it lifts the center of a slab or footing 1 to 2 inches during a wet spring, squeezing the rough opening from below.

Sill plate rot under the window

Epp Foundation Repair sees rotted sill plates under windows in roughly 1 in 5 older Lincoln and Council Bluffs homes built before 1965. Water from a leaking storm window, failed flashing, or chronic exterior grading drives moisture into the sill, the sill loses 60 to 80 percent of its bearing capacity, and the wall above settles 1/2 to 1 inch into the rotted wood. The gap appears within 2 to 5 years of the leak starting.

Seasonal humidity (cosmetic only)

Epp Foundation Repair rules this out on every inspection before recommending any structural work. Wood trim and wood window frames expand 1/16 to 1/8 inch per linear foot between February and August in Nebraska and Iowa. If a gap shows up only in winter, closes by July, and is uniform around all four sides of the window, the foundation is fine and the homeowner is looking at a caulk-and-paint repair, not a $5,000 to $25,000 underpinning job.

Underlying cause of gaps around windows and doors in Midwest homes

Permanent Solutions

How foundation repair specialists actually fix gaps around windows and doors.

Solving gaps around windows and doors means addressing the underlying soil, pressure, or settlement cause. Not just patching the visible damage. Below are the engineered solutions we install most often for this symptom in Nebraska, Iowa, Kansas, and Missouri homes.

Foundation Repair solutions

Engineered foundation repair solutions for this problem.

Each method is matched to a specific failure mode and soil profile. Browse the toolkit we draw from when diagnosing your home.

Helical Piers

When a foundation has settled into soft or eroding soil, surface-level repairs treat the symptom. Helical piers transfer the structure's load to deep bearing soil, stopping settlement permanently, often restoring lost elevation.

Push Piers

Epp Foundation Repair has installed resistance push piers under settling Nebraska, Iowa, Kansas, and Missouri foundations since 1994. Driven to refusal under the structure's own weight, warrantied for life on the pier itself.

Foundation Underpinning

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.

Regional Context

Why foundation movement in Nebraska and Iowa needs a regional diagnosis

Loess soils across eastern Nebraska and western Iowa lose strength when wet. Expansive clay across northeast Kansas and northwest Missouri swells and shrinks with the seasons. Foundation movement here behaves differently than in states with stable bearing soil, which is why our diagnosis starts with the soil under the home, not just the crack on the wall.

36 to 42"

Frost penetration depth

Eastern Nebraska average

60 to 80

Freeze-thaw cycles / year

Lincoln to Omaha corridor

35 to 40"

Annual precipitation

NE / IA service region

30+

Years of regional inspections

30,000+ homes assessed

Loess soils and the crack patterns they produce

Most of eastern Nebraska and western Iowa sits on wind-deposited loess. a fine, silty soil 10 to 200+ feet deep. Loess holds its structure when dry but loses cohesion rapidly when saturated. After a wet spring, saturated loess expands against foundation walls. After a dry Nebraska summer, it contracts. pulling away from footings, creating voids beneath slabs, and producing the vertical and diagonal settlement cracks we see most frequently on the Lincoln, Omaha, Council Bluffs corridor.

The Marshall and Sharpsburg loess series. dominant across the eastern Nebraska service area. are particularly prone to this cyclical volume change. Homes built in the 1960s, 1980s on uncompacted loess backfill show the highest incidence of progressive settlement cracking in our inspection data.

Frost depth, freeze-thaw cycles, and horizontal cracking

Eastern Nebraska's 36, 42" frost penetration depth means the soil below grade freezes and thaws 60, 80 times per year. Each cycle applies lateral pressure to basement walls. A wall that holds through ten cycles can fail in the eleventh if drainage has worsened, backfill has settled, or the wall was already at capacity. Horizontal cracks near the soil grade line are almost always a freeze-thaw story in this region.

In eastern Kansas, expansive clay pockets near the surface introduce a different failure mode . consistent volume change regardless of frost depth. Horizontal cracking in Kansas foundations typically traces to clay expansion; the same pattern in Nebraska more often indicates frost-driven hydrostatic pressure.

"If a window opens in winter and closes in summer, that's wood. If a window opens at one corner and the door across the room sticks at the opposite corner, that's the foundation, and no amount of caulk is going to fix it."

Dave Epp

President, Epp Foundation Repair

Why Choose Epp

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.

Specialized expertise.

Foundation repair, waterproofing, and concrete leveling are our entire focus. not a sideline.

Locally owned since 1994.

Three decades of experience with Midwest soils, basements, and weather conditions.

BBB Integrity Award winner.

Recognized in 2011 and 2016 for ethical business practices and customer transparency.

Warrantied solutions.

Most product solutions carry 10 to 25-year warranties backed by the original installer.

EPP · SINCE 1994

Why hire Epp Foundation Repair.

MEET THE TEAM · 2 MIN

Frequently Asked Questions

Answers to common questions about Gaps Around Windows and Doors.

Don't see your question here? Our team is happy to help. Reach out anytime.

It depends on the pattern. Epp Foundation Repair classifies a tapered gap of 1/8 inch or wider with associated diagonal cracking as structural. Meaning the foundation has moved and will likely keep moving without intervention. A uniform 1/16-inch seasonal gap that closes in summer is cosmetic. Dave Epp recommends a free on-site assessment and a 30 to 90 day crack monitor reading before classifying severity. About 1 in 5 homes Epp inspects for this symptom turns out to be cosmetic, and Epp says so rather than selling unnecessary work.

Epp Foundation Repair anchors pricing to the underpinning method required. Helical piers run $1,500 to $2,500 per pier and a typical racked-corner stabilization needs 5 to 8 piers, bringing the project to $7,500 to $20,000. Push piers run $1,200 to $2,000 per pier. If the cause turns out to be sill plate rot rather than settlement, the structural cost drops sharply because Epp coordinates with a framing carpenter rather than installing piers. Written estimate after on-site inspection reflects your scope.

No. Epp Foundation Repair stabilizes the foundation and squares the rough opening. Re-setting, re-shimming, or replacing the window or door itself is a window contractor's scope. Epp coordinates the sequencing. Foundation first, window second, and refers to local installers Epp has worked alongside for two decades. This honest scope boundary is part of why the BBB awarded Epp the Integrity Award in 2011 and again in 2016.

Sometimes, but Epp Foundation Repair does not guarantee full closure. Helical and push piers stabilize the footing and can recover 50 to 90 percent of the settlement in many cases, but full lift is not always possible without risking damage to the wall above. Dave Epp's policy is to guarantee stabilization. The movement stops, and to be transparent that residual gap may remain and require trim adjustment or window replacement by a finish trade.

Epp Foundation Repair finds that differential settlement is rarely uniform. One corner of a footing drops 1 to 2 inches while the rest of the foundation barely moves, and the window directly above the dropping corner is the one that racks. That isolated pattern is actually the strongest single diagnostic indicator that the cause is foundation movement rather than a window defect. A uniformly settling house would show gaps at every opening.

Pricing ranges above are general estimates only and are not project quotes. A precise figure is provided on each written estimate after on-site inspection.

Other foundation repair warning signs to watch for.

If you see one, it's worth checking for the others. Most foundation problems show up as more than one symptom.

Bouncing Floors

Bouncing floors happen when the framing that holds your floor up loses solid support. In a home with a basement or crawl space, that support comes from beams, joists, and the foundation walls or piers under them. When the soil beneath a footing settles, or a support post sinks, the framing spans a longer unsupported distance and starts to flex underfoot. In eastern Nebraska and western Iowa, settlement is usually tied to expansive clay and loess soils that swell when wet and shrink when dry, plus 50 to 70 freeze-thaw cycles a year that work the soil loose. A little flex in an old floor is common. The threshold that matters is when the bounce is new, getting worse, or paired with sloping floors and cracks. At that point the support is actively moving, not just settled once and stable. Catching it early often means a pier or a few crawl space jacks instead of replacing rotted framing or releveling a whole room later.

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Bowing Walls

Basement walls bow inward when the lateral pressure from soil and groundwater outside exceeds the wall's structural capacity. In eastern Nebraska and western Iowa, this is almost always driven by a combination of clay-heavy or loess-rich backfill, poor exterior drainage, and the cumulative effect of 50 to 70 freeze-thaw cycles per year. The critical threshold is 2 inches of inward deflection. Walls that have moved less than 2 inches can often be stabilized in place with carbon fiber straps or wall anchors. Walls that have moved beyond 2 inches typically require replacement. Catching the movement early is the difference between a $4,000 repair and a $20,000 reconstruction.

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Carpenter Ant Infestation

Carpenter ants are a moisture clue more than a pest problem. Unlike termites, they do not eat wood for food. They hollow out galleries to nest in, and they strongly prefer wood that is already damp, soft, or beginning to break down. That is why a colony in a floor joist, sill plate, or crawl space beam usually points to a water source nearby. In Nebraska, Iowa, Kansas, and Missouri, the moisture often comes from a humid crawl space, poor drainage against the foundation, or seepage through a foundation wall after spring rain and snowmelt. The high water table in the Missouri River basin near Omaha, Bellevue, and Council Bluffs makes damp framing common. The threshold that matters is finding ants together with soft or damaged structural wood, because that means the moisture has been present long enough to weaken framing. Calling a pest company kills the ants, but if the underlying dampness stays, the wood keeps degrading and the ants tend to return. Epp does not do pest control or wood rot repair. What Epp addresses is the moisture and any structural support the dampness has compromised. Drying the wood out is the durable answer; the ants lose their reason to stay.

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Ceiling Gaps

A gap between the wall and ceiling forms when two parts of your home shift in different directions. The wall is anchored to the floor framing below, and the ceiling is tied to the roof framing above. When a foundation settles unevenly, or soil heaves and lifts one area, the framing twists and a separation opens at the joint. In Nebraska, Iowa, Kansas, and Missouri, the usual driver is soil that moves with moisture. Expansive clay and loess swell after spring rain and snowmelt, then shrink in dry summers, and the cycle drags the structure with it. Freeze-thaw action, 50 to 70 cycles a year in eastern Nebraska and western Iowa, adds to the movement. A hairline cosmetic crack at a ceiling line can come from normal seasonal change. The threshold that matters is a gap you can fit a coin into, a gap that keeps widening, or one paired with sticking doors and cracks elsewhere. That pattern points to active foundation movement, not just settled paint. Addressing the cause early, rather than caulking the gap, keeps the movement from spreading to floors, walls, and the roofline.

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Cracked Block Foundation

Block foundations crack along the mortar joints because that is the weakest path through the wall. The pattern tells the story. Stair-step cracks that follow the joints up and across usually mean uneven settlement, where one part of the footing has dropped into soft soil. Vertical cracks often come from shrinkage or minor settlement. Horizontal cracks running along the middle of the wall are the most serious, because they signal lateral soil pressure pushing the wall inward. In eastern Nebraska and western Iowa, the drivers are familiar: expansive clay and loess backfill, saturated soil after spring rain and snowmelt, and 50 to 70 freeze-thaw cycles a year. Concrete block handles compression well, around 3,000 to 4,000 psi, but resists tension and bending poorly, only about 300 to 400 psi, which is why pressure cracks the joints. The threshold that matters is a horizontal crack, a crack wider than about an eighth of an inch, a stair-step crack that keeps growing, or any crack paired with inward bowing. Those mean the wall is actively moving, not just cured and settled. Catching it before the wall passes roughly 2 inches of inward deflection is the difference between stabilizing in place and replacing the wall.

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Cracked Brick Veneer Diagnosed and Stabilized

Epp Foundation Repair treats brick cracks as diagnostic evidence, not the disease. Stair-step cracks climbing the mortar joints, vertical splits running straight through brick faces, horizontal cracks at the base course, and diagonal cracks fanning from window and door corners each point to a different underlying foundation movement. Since 1994, Dave Epp and his crew have walked roughly 18,000 homes across Lincoln, Omaha, Des Moines, Grand Island, Norfolk, St. Joseph, and the surrounding counties; in his field notes, more than 70% of stair-step brick cracks trace back to differential settlement on loess soil or a failed lintel, not freeze damage to the brick itself.

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Service Areas

Serving Nebraska, Iowa, Kansas & Missouri.

Local crews based in six regional offices, dispatched daily across four states. If your town isn't listed, call us. we likely serve your area.

Top cities we serve

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Our Process

Take the first step toward a healthy home.

A straightforward path from initial inspection to completed repairs.

Step 01

Schedule your inspection.

A local specialist visits your home, evaluates the foundation, and answers your questions on site. No cost, no obligation.

Step 02

Receive an estimate based on your needs.

We provide a clear, written estimate with a scope of work tailored to your home's specific issues. Typically within one business day.

Step 03

Get your repairs.

Our certified crews complete the work on schedule and back it with product warranties of up to 25 years.

Schedule Your Inspection

Customer Reviews

Over 1,750 homeowners have shared their experience.

A 4.9-star average across Google, with verified reviews from homeowners throughout Nebraska, Iowa, Kansas, and Missouri.

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Free Estimate

Two ways to start: book instantly, or request an estimate.

Schedule your inspection in seconds with our Driive booking tool, or share a few details and a local specialist will follow up within one business day.

What to expect

A local foundation specialist on site
A complete walk-through of the findings
A written estimate within one business day
No cost, no obligation, no high-pressure sales

Prefer to call

402-423-9192

Nebraska · Iowa · Kansas · MissouriSince 1994

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.

Book instantly with Driive

BBB Accredited

Fully Insured

"By Your Side" Guarantee

From the Blog

Expert guidance on protecting your home.

Practical articles from the Epp team on foundation health, waterproofing, and home preservation.

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Why foundation problems are common in Des Moines homes.

Iowa's expansive clay soils and freeze-thaw cycles are particularly hard on residential foundations. A practical guide to what's happening below grade and why local…

Dave Epp·Feb 18, 2026