Polyurethane Foam Lifting in Sioux Falls, SD
Polyurethane foam lifting — injecting a two-part foam that expands under the slab and hardens into a light, waterproof support — is the modern alternative to mudjacking. Concrete Raising Sioux Falls offers foam alongside mudjacking and recommends it where its advantages actually matter.
Foam weighs about 2–4 pounds per cubic foot (against roughly 100 for slurry), cures in minutes, and goes in through holes as small as ⅜ inch. That makes it the right tool for stamped and decorative concrete, for slabs that must be used again the same day, and for jobs where adding weight to soft soil would be a mistake.
How foam lifting works
Small holes — ⅜ to ⅝ inch — are drilled through the slab. A two-part polyurethane foam is injected; it expands, fills the voids, and lifts the slab in controlled stages while the crew watches the level. The foam hardens within minutes into a rigid, waterproof support, the holes are patched with a near-invisible plug, and the slab is usually ready to use within about 15 minutes.
Because the foam is light, it does not add load to soft or saturated soil — the exact soil under many Sioux Falls slabs after a wet spring. And because it is waterproof, it does not wash out the way soil-based fill can.
When foam is the right choice
Stamped, stained or decorative concrete, where a ⅜-inch hole disappears and a 1–2-inch mudjacking hole does not. Slabs that cannot wait — a driveway that must carry cars the same afternoon, a commercial entrance that cannot close for a day. Soft or saturated soils, where heavy slurry would add to the problem. And interior floors, where the small holes and fast cure keep the disruption minimal.
Foam is not always the answer: for very large slabs and deep voids, mudjacking's dense fill is often the better and cheaper tool. The estimate recommends the method after the inspection — that is the point of offering both.
- Stamped and decorative concrete
- Driveways and entrances that must reopen fast
- Pool decks and patios
- Interior garage and basement floors
- Soft or wet soils
Foam vs mudjacking, honestly
Foam costs more per square foot — nationally up to about $25 per square foot against mudjacking's $3–$8 — and for a big plain driveway that premium buys little the slurry cannot do. For a stamped patio or a same-day driveway, it buys exactly what you need. The full side-by-side, with weights, hole sizes and cure times, is on our comparison page.
Questions
How much does polyurethane foam lifting cost in Sioux Falls?
Foam runs higher per square foot than mudjacking — nationally up to about $25 per square foot, with typical residential foam jobs running roughly $1,200–$3,800 for a driveway. Your exact price is a free estimate; we will quote both methods when both fit, so you can choose.
Is foam safe under my driveway?
Yes — the foam used for concrete lifting is a rigid, closed-cell polyurethane that hardens into a stable, waterproof support. It does not wash out, does not add meaningful weight to the soil, and has been used for slab lifting for decades.
How fast can I drive on a foam-lifted driveway?
Usually within about 15 minutes of the lift — the foam cures that fast. Your crew will confirm the exact wait for your job before they leave.