Concrete Leveling and Slab Lifting in Casper, Wyoming

A slab that has dropped half an inch at a joint is a trip hazard, a forklift problem and a drainage problem. Replacing it means demolition, new subgrade and weeks of curing. Lifting it back to grade can take an afternoon, and the cost is a fraction of a new pour. The catch is that lifting only works when the slab is sound and the cause of the settlement is understood.

We level and lift slabs that have settled over voids, soft fill, leaking utilities or washed-out base. The work covers loading dock aprons, warehouse floors, sidewalks, trail sections, parking lot panels and equipment pads. Methods include drilled injection of cementitious slurry or expanding foam, and grinding or planing for minor lips.

Before we drill a single hole, we find out why the slab moved. If water is still running under it, lifting is a temporary fix. We recommend repairing the source, then raising the concrete.

Finding the void and the cause

Settlement has four common causes: poor compaction at the original construction, trench backfill that consolidated, water erosion under the slab and frost action that moved the soil beneath. We probe through test holes, tap the slab to find hollow zones and check adjacent utilities with a camera when a leak is suspected. A cracked storm line next to a dock apron can wash out a cubic yard of base a year.

Once the cause is known, we choose between filling voids, raising the slab and replacing panels. If the slab has broken into pieces or the steel has corroded, replacement is better. If it is intact and the void is contained, injection is efficient. We show the owner the survey readings and marks so there is no guesswork about the target elevation.

How the lift goes

We drill small holes in a planned pattern, then inject material in stages while watching the slab with a level or laser. Raising too quickly can crack the panel or push it past the neighboring slab. Lifting happens in small increments, starting at the low corner and working across, with checks at the joints after each pass.

Hole patterns are chosen to spread the lift and avoid overpressure near edges and embedded utilities. After the slab reaches grade, we patch the holes flush, clean the surface and check drainage. Traffic can often resume the same day, which matters for docks and entries that cannot be closed. For lips that remain, grinding smooths the transition without removing structural thickness.

Lift versus replace

Cost depends on the volume of void to fill, the number of panels and the access. A single sidewalk panel costs little. A large warehouse floor with scattered voids costs more, but still usually less than demolition, haul-off, new base and a fresh pour, plus the downtime for racking and inventory. We price both options so the owner can compare.

Material choice affects both cost and performance. Foam is light and does not add much load to weak soil, which suits slabs over soft ground. Cementitious slurry is heavier and fills larger voids well. We explain the tradeoffs and recommend what suits the cause. Where the base is still washing out, we advise addressing drainage first, such as a trench drain or a downspout extension. Cost also depends on the time of year: cold ground slows set times and can shorten the working day, so winter lifts are scheduled for the warmest part of the afternoon.

What often goes with leveling

Leveling is part of a broader repair toolbox. Cracks and spalls in the same slab call for concrete repair and restoration, and a slab that has failed beyond lifting needs demolition and removal before new work. Where new subgrade is needed, we coordinate with the earthwork crew on over-excavation and recompaction.

On active sites, we phase the lifting around operations. A forklift aisle can be done in a morning and opened the same afternoon. Joint resealing often follows right after, because a lifted joint should be sealed before water and salt get in again.

We also coordinate with the people who use the space. A dock supervisor knows which doors cannot close, and a plant manager knows which aisles carry the heaviest loads. A short call before we start gets us the lift sequence that disrupts the fewest shifts, and it lets us put cones, barricades and signs where drivers will see them.

Where settlement shows up here

Casper lists severe weathering and a three-foot frost line in its engineering criteria, and the freeze-thaw cycle moves soil under pavements every year. The Platte River Trail runs about 10 miles of paved pathway from Paradise Valley Park to Bryan Stock Trail, passing through the Platte River Commons area, and long runs of flatwork near a river see settlement where fill is placed over softer ground.

Bar Nunn grew from the runways of an old airfield, and its street pattern still follows them, a reminder that large areas of the metro were graded for other uses first. Fill and old base layers beneath newer slabs do not always behave. Municipal and public works owners who maintain miles of walkway, curb and plaza value lifting because it extends the life of concrete they already own.

Show us the low spot

Send photos, a length and the location of the settled concrete. We will tell you whether it can be lifted, what we expect to find under it and what it should cost.

Questions Owners Ask

Does slab lifting last?

It lasts when the cause of settlement is fixed. If the soil is stable and the water source is controlled, a lifted slab can stay at grade for many years. If water is still washing out the base, the slab will settle again and the lift is a temporary measure.

How soon can we drive on a lifted slab?

Often within hours, depending on the material. Foam sets quickly, and slurry reaches usable strength within a short window. We give a specific time based on the product and the temperature, because cold slows set.

Can you lift a slab with cracks?

If the cracks are tight and the pieces are tied together, lifting can work. If the slab has broken into loose pieces, lifting may cause more damage. We inspect the cracking pattern and tell you honestly if replacement is the better choice.

Can lifting be done in winter?

Yes, as long as the injection materials are kept in their working temperature range and the slab is not frozen to the ground. We schedule around deep cold, since materials thicken or fail to set properly.

Will drilling weaken the slab?

The holes are small and patched flush. They do not meaningfully reduce strength when placed correctly. We avoid drilling near edges, embedded conduit and post-tensioned tendons, and we scan before we drill if anything is in doubt.

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