Concrete leveling for Sioux City homes

A sidewalk panel with white paint on it, a garage apron that has slipped below the door, or a back patio pitching toward the basement? One call connects you with a concrete leveling contractor that works in Siouxland.

Sloped driveway slab being lifted back to level below a house on a loess bluff Rounded, grass-covered loess hills rise under an evening sky. A two-story house sits on a hillside lot with a driveway sloping down toward the street. One driveway slab near the bottom has sunk, and an injection hose feeds material under it. A cutaway of the tan silt soil shows the hollow beneath the slab being filled while arrows show the slab rising.

How it works

  1. Call or send a request

    Tell us your town, your state and what the slab is doing.

  2. We connect you

    Your call goes to an independent concrete leveling and repair contractor that serves Sioux City and the towns around it.

  3. They call you back

    They look at the concrete and quote the repair directly.

Who is this site for?

Homeowners in Sioux City, South Sioux City, North Sioux City, Dakota Dunes and nearby towns whose concrete has sunk, tipped, heaved or cracked. That covers driveways, garage aprons, front walks, public sidewalks, stoops, steps and patios. It's also for Sioux City owners who got a sidewalk repair notice and would rather hire their own contractor than have the city's contractor do the work and bill them.

Can sunken concrete be raised instead of replaced?

In many cases. A leveling contractor drills a few holes through the slab, pumps material into the hollow underneath, and uses that pressure to bring the concrete back up. The holes get patched, and the slab is usually back in use the same day or the next. Compared with breaking it out and pouring new, there's less mess and no curing wait.

Lifting isn't the right call for every slab. Concrete that's broken into many pieces, crumbling on top, or sinking because water pours under it every storm may be better replaced, or at least paired with a drainage fix.

Mudjacking or foam: what's the difference?

  • Mudjacking. Also called slabjacking. A cement-based slurry is pumped through holes roughly an inch and a half wide. It's the long-established method and usually the less expensive one.
  • Polyurethane foam. A two-part foam that expands under the slab, injected through holes about the size of a dime. It weighs very little, cures in minutes and doesn't soak up water, but usually costs more.

Both can do the job. Ask the contractor which they'd use on your slab and why. More on mudjacking and foam leveling.

Why does concrete sink in Sioux City?

  • Loess that gives way when wet. Sioux City sits at the north end of Iowa's Loess Hills. The Iowa Geological Survey describes loess as cohesive when dry but vulnerable to collapse when wet, and says erosion rates in the Loess Hills are very high. Water reaching the silt under a slab can leave it hanging over a void.
  • Steep lots. Many neighborhoods climb bluffs and hillsides. Runoff picks up speed on slopes and can undercut the downhill edge of driveways, walks and patios.
  • River-bottom ground. Low-lying parts of the metro, and the towns across the Missouri and Big Sioux, sit on flatter floodplain ground where water can linger under slabs after heavy rain.
  • Freeze and thaw. Sioux City averages about 36 inches of snow a year, with a January mean near 20°F. Water under a slab freezes and expands, then leaves gaps when it melts.
  • Settling backfill. Soil pushed back in around new foundations and utility trenches can keep compacting for years, taking garage aprons and stoops down with it.

Which problems shouldn't wait?

  • A sidewalk joint or edge sticking up three-quarters of an inch or more
  • White paint on a public sidewalk panel in front of your house
  • A garage apron that has dropped below the garage floor
  • A stoop or patio sloping toward the foundation
  • Soil washing out from under the downhill edge of a slab
  • Steps that rock or have pulled away from the door

How does the Sioux City sidewalk program work?

The city inspects one of ten zones each year. If a sidewalk panel meets the city's definition of defective, the owner gets a notice and the area is marked with white paint. You can hire your own contractor, who needs a city permit and an inspection before pouring, or let the city's contractor do it and pay the bill or have it assessed. See sidewalk repair for the details.

Does it matter which state I'm in?

Yes. The metro spans Iowa, Nebraska and South Dakota, and each state handles contractors differently. Iowa requires registration for contractors earning $2,000 or more a year, Nebraska requires registration with its Department of Labor, and South Dakota has no statewide general contractor license. Each city has its own permit rules for public sidewalks and approaches. The Sioux City concrete repair guide covers all three.

What should I fix at the same time?

  • Extend downspouts so they empty past the end of walks and drives, especially on the downhill side
  • Send sump discharge away from slabs
  • Seal the joint between the slab and the house, and any open joints
  • Fill and reseed eroded spots along slab edges

Are you a concrete company?

No. Sioux City Concrete Leveling is a referral service. We connect you with an independent contractor that serves your address, and that contractor quotes, performs and backs the work. Before hiring, read our tips for choosing a contractor.

Areas we cover

Planning ahead? Read our Sioux City concrete repair guide.

Common questions

Who will do the work?

An independent concrete leveling or repair contractor that works in your area. We connect you with them; we don't do concrete work ourselves.

Does it cost anything to call?

No. Calling or sending a request is free. The contractor quotes and bills the work directly.

Which towns do you cover?

Sioux City, South Sioux City, North Sioux City and Dakota Dunes, plus Sergeant Bluff, Dakota City, Jefferson, McCook Lake and other nearby towns.

Do concrete contractors need to be registered?

In Iowa, contractors earning $2,000 or more a year from construction must register with the state. Nebraska requires registration with its Department of Labor. For public sidewalk work in Sioux City, the contractor must also be licensed, bonded and registered with the city.

White paint on your sidewalk, or a slab that keeps dropping?

Call and a local concrete leveling contractor will look at it and quote the repair.

Call (712) 493-0410
Call (712) 493-0410