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.
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.
Gaps Around Windows and Doors: diagnosed and explained.
Epp Foundation Repair has inspected gap-around-window and gap-around-door symptoms in homes across the Lincoln, Omaha, Grand Island, Norfolk, St. Joseph, and northeast Kansas corridors since 1994. A visible gap between trim and frame, usually 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 relative to the rest of the house. The gap is usually widest at the top corner directly above the lowest point of the foundation.
Four Signals That Point to Foundation Movement, Not a Bad Window
- 01
The gap is widest at one corner of the window or door
Epp Foundation Repair treats a tapered gap, narrow at one corner and wider 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.
- 02
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 out of plumb over its height is racked, and the foundation under that wall has moved.
- 03
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. Measured movement over the monitoring period confirms active settlement and can lead to an underpinning recommendation.
- 04
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 an Epp foundation specialist which soil mechanism to address.
What causes gaps around windows and doors in Midwest homes.
- 01
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 when it gets wet under load.
- 02
Expansive clay heave (KS, MO)
The clay soils of northeast Kansas and northwest Missouri swell 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 during a wet spring, squeezing the rough opening from below.
- 03
Sill plate rot under the window
Epp Foundation Repair sees rotted sill plates under windows in older Lincoln and Council Bluffs homes. Water from a leaking storm window, failed flashing, or chronic exterior grading drives moisture into the sill, the sill loses bearing capacity, and the wall above settles into the rotted wood.
- 04
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 between February and August across the Midwest. Contact Epp Foundation Repair for a free, on-site Customized Repair Estimate.
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.
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, with some lift possible depending on conditions.
Push Piers
Epp Foundation Repair installs resistance push piers under settling Nebraska, Iowa, Kansas, and Missouri foundations, driven to refusal under the structure's own weight.
Foundation Underpinning
Epp Foundation Repair drives engineered helical, push, and slab piers through Nebraska loess and Kansas clay, matched to the soil and the structure.
How do soil and climate in Nebraska and Iowa affect foundations?
A foundation rests on the soil under and around it. When that soil gets wetter, drier or colder, it can swell, shrink, settle or freeze, and the foundation can move with it.
Based on NOAA 1991 to 2020 climate normals for Lincoln Municipal Airport and Omaha Eppley Airfield.
What kind of soil is around Lincoln and Omaha?
Based on USDA soil survey data for Lancaster County (Lincoln) and Douglas County (Omaha), clay is the main soil type in both counties. The survey rates Lancaster County high and Douglas County moderate for shrink swell. Clay can swell when it gets wet and shrink as it dries, so a slab or foundation on clay can move up and down with the seasons. The soils that cover the most ground in Lancaster County are Wymore and Aksarben, and in Douglas County they are Contrary and Marshall.
Loess, the wind deposited silt common in eastern Nebraska and western Iowa, can lose strength and settle when it gets wet. Water can reach it from runoff, a plumbing leak or a downspout that empties next to the house.
How does freezing weather affect footings and basement walls?
In Lincoln and Omaha, soil near the surface can freeze and thaw many times between fall and spring. Each city's building code sets a frost line depth, which is the minimum depth below finished grade for a footing. It is 36 inches in Lincoln and 42 inches in Omaha. Supports that sit above that depth, such as some porches, stoops and chimney footings, can move as the ground freezes and thaws.
Horizontal cracks in a basement wall are more often linked to pressure from the soil outside the wall than to settlement. Wet soil pushes harder against a wall than dry soil, and soil that freezes against the wall can add to that pressure.
Climate: NOAA U.S. Climate Normals 1991 to 2020, LINCOLN MUNI AP (USW00014939) and OMAHA EPPLEY AIRFIELD (USW00014942), retrieved September 30, 2026. Soil: USDA NRCS Soil Data Access (SSURGO), county survey for Lancaster County and Douglas County. Frost line depth: Lincoln Municipal Code 20.12.140 and Omaha Municipal Code Sec. 43-127.
"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."
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 by the Better Business Bureau for integrity and ethical business practices.
Many of our repairs carry a written Epp warranty. The warranty page lists every covered repair and its terms.
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.
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.
Serving 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.
Trained crews complete the work on schedule.
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
Over 1,700 homeowners have shared their experience.
A 4.9-star average across Google, with verified reviews from homeowners throughout Nebraska, Iowa, Kansas, and Missouri.
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.
- 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.
Practical articles from the Epp team on foundation health, waterproofing, and home preservation.
foundation repairLatest2026 Omaha commercial foundation repair guide for business owners.
A stable foundation protects your building, your people, and your bottom line. This guide covers warning signs, repair methods, and what to expect from a…
Foundation RepairPier And Beam Foundation Spacing: Best Practices For Stability
Learn the key to proper pier and beam foundation spacing for lasting home stability. Find out when to repair or add piers for support.
Foundation RepairCan Cracks In Popcorn Ceiling Be Repaired?
Discover what causes cracks in a popcorn ceiling, the different crack types, and when foundation issues call for a professional repair.
Foundation RepairWhen Should I Be Worried About Cracks In Brick?
Not every crack in brick is a foundation problem. Learn the crack types, how to judge severity, the interior and exterior warning signs, and the repair options.
Five regional offices across the Midwest.
St. Joseph, MO 64506