Pool Deck Leveling and Crack Repair Across NE, IA, KS & MO.

A sunken pool deck is almost never a concrete problem. It is a soil problem under the concrete. Epp Foundation Repair has leveled and stabilized concrete slabs across Nebraska, Iowa, Kansas, and Missouri since 1994, and a pool deck is one of the slabs we get called on most. The pattern is the same nearly every time. A section of the deck has dropped, a joint between two slabs has formed a lip you can catch a toe on, or a crack has opened and one side now sits lower than the other. The concrete looks like the problem. The real problem is the dirt that used to hold it up.

Pool decks settle more than most flatwork for a simple reason: they are built on disturbed soil. When a pool goes in, the ground around it is excavated, backfilled, and compacted by hand or with small equipment in tight quarters. That backfill rarely reaches the density of the undisturbed soil next to it. Over the years it consolidates, water finds its way underneath, and the slab loses its support. In our region the soil makes this worse. Eastern Nebraska and western Iowa sit on loess and expansive clay. Loess can collapse when it first gets soaked, dropping a slab an inch or two over a single wet season. Clay swells when wet and shrinks when it dries, so the ground under your deck lifts and falls with the seasons and the pool's own splash-out and backwash keep that soil wet far more than a normal yard. Add 50 to 70 freeze-thaw cycles a winter, with frost reaching 36 to 42 inches down, and the soil under the deck heaves and settles year after year. The slab follows it.

Why this matters is simple. A pool deck is the one slab on a property where people walk barefoot, often with wet feet, near a hard edge and deep water. A half-inch lip at a joint is a stub-your-toe nuisance on a driveway. Around a pool it is a trip hazard a few feet from the water. Sinking that started as a cosmetic gap also tends to get worse, not better, because the same wet soil and freeze-thaw cycle that caused it keeps working. Catching a settled deck early, while it is one or two slabs and a quarter to a half inch of drop, keeps the repair to a single afternoon of foam injection. Waiting until several slabs have dropped, the cracks have widened, and water is pouring straight into the backfill turns a small leveling job into a larger one and, in the worst cases, into a replacement.

The way Epp fixes this is mid-soil polyurethane foam injection, the same method used for driveways, patio slabs, and garage floors. A crew drills a series of small holes, about the size of a penny, through the slab in a planned grid. A two-part polyurethane resin is injected through those holes. It travels into the loose soil and the voids under the concrete, expands, and firms up the ground. As it expands it fills the gap first, then begins to raise the slab. The foam reaches a maximum of about 4 feet below the surface. This is mid-soil injection, which means it treats the loose backfill and voids in the few feet directly under the slab, which is exactly where a pool deck loses its support. The holes are patched the same day, and because the foam cures fast you can usually walk on the deck within an hour or two. There is no tear-out, no new pour, and no waiting on concrete to cure for days.

Here is the honest part, the part we tell every pool deck customer on the first visit. Our goal is permanent stabilization. We guarantee that we will stop the slab from sinking further. Some lift is often possible and we attempt it, but we never promise a slab will return to perfectly level. Old concrete is heavy and sometimes already cracked, and pushing too hard to chase the last fraction of an inch can crack a slab that lifted fine to within a quarter inch of its neighbor. We would rather give you a safe, stable, well-supported deck than make a promise about exact elevation we cannot keep.

Alongside lifting, Epp seals the cracks and joints that let water back down to the soil. Control joints get fresh flexible sealant. Cracks get an appropriate injection or sealant so surface water and pool splash-out drain away instead of soaking the backfill and starting the cycle over. Sealing the slab is what makes the lift last, because water getting back under the concrete is what caused the settlement in the first place.

One thing Epp does not do, and will tell you plainly, is resurfacing. We do not apply decorative overlays, spray-on coatings, or cosmetic toppings to change how a deck looks. We are a foundation and concrete-leveling company. We fix the structural and safety problem under your deck. We level the slabs, stabilize the soil, and seal the cracks so the deck is safe and supported. If you want a new decorative finish on top after that, a pool deck coating contractor is the right call, and a stable, level slab is the best surface for them to start from.

Every pool deck job starts with a free, no-pressure inspection. An Epp specialist measures the drop, checks the joints and cracks, looks at how water is getting under the slab, and tells you whether foam injection is the right fix or whether the slab is too far gone to save. You get a Customized Repair Estimate with the scope, the access holes mapped out, and a fixed price. The same specialist who inspects your deck is the one who oversees the work, and warranty calls go straight to our Lincoln, Nebraska office. That start-to-finish accountability is part of why Epp has held a BBB A+ rating and won the BBB Integrity Award in 2011 and 2016.