Foundation Contractor in Ocala, FL

When the Soil Shrinks and Swells

The dirt under your house is rarely as static as it looks. Here in Ocala, high annual rainfall and a heavy humidity load put constant stress on building envelopes, but it's the swing between wet and dry that does the real damage. Ocala's climate data page currently lists conditions as moderate drought. When the soil dries out, it shrinks and pulls away from your foundation, leaving voids underneath.

Then the rain returns, the soil swells back up, and the cycle repeats. This isn't new for Marion County. A local news report documented a three-year drought period beginning in April 1998, with rainfall deficits ranging from 22 inches to more than three feet. Swings like that cause the ground to heave and settle, and your foundation moves along with it. Over time, that movement is what shows up as cracked slabs and bowing walls.

Mapping the Floor with Precision

Before we recommend a repair, we need to know exactly what the structure is doing. We don't just look at a crack and guess at the cause. Our crew uses a manometer floor-elevation survey kit to map the high and low points across your ground floor, so we're working from an actual reading of how the house sits rather than a guess.

Sometimes that data points to a localized, straightforward fix. Other times the movement indicates a deeper structural issue that's outside our scope to diagnose alone. When the survey suggests that, we'll tell you to bring in a structural engineer for a foundation inspection, which typically runs $400-$1500. It's an added cost up front, but it means the repair plan actually addresses the cause instead of covering up a symptom.

Arresting Inward Movement on Your Walls

When the soil outside your home takes on water, it gets heavy, and that hydrostatic pressure pushes against your foundation walls. Given enough of that pressure over time, a wall can start to bow inward. If you catch it early, we don't have to excavate the yard or rebuild the wall. Instead, we use carbon-fiber strap bonding to arrest the movement and hold the wall where it is.

The straps are bonded directly to the interior face of the foundation wall. Once they're in place, the wall is locked against further inward movement. It's a more contained repair than excavation, since the work happens from inside the basement or crawlspace rather than tearing up the ground outside.

Two Approaches to Sunken Slabs

If your issue is a sunken driveway, patio, or garage floor, we use two different methods depending on the size of the void and what the slab needs. The first is polyurethane foam, injected through dime-sized holes drilled into the concrete. The foam expands beneath the surface, fills the voids left by shrinking soil, and lifts the slab back into position. The injection holes are small and easy to patch afterward.

For other jobs, we use a cement-based slurry pump for slab-jacking, pumping a heavier slurry mixture underneath the slab to push it back up. This method tends to suit larger, heavier slabs better than foam does. Either way, keeping the slab level matters here because our heavy annual rainfall will keep finding any low spot and washing soil out from under it if the surface isn't sitting right.