Driveway Leveling in New Orleans — Lift It, Don't Replace It

Last updated: September 24, 2026

New Orleans Concrete Leveling connects homeowners with independent local contractors who lift sunken driveways back to grade by injecting material under the slab — no tear-out, no new pour. With mudjacking, driveway leveling in New Orleans typically runs $1,800–$4,100 for a full 450-square-foot driveway and $800–$1,800 for a 200-square-foot section, according to HomeGuide's mudjacking cost data — usually 30–50% less than replacing the concrete. Polyurethane foam costs about $8–$25 per square foot, which works out to roughly $3,600–$11,250 for the same full driveway.

A sunken driveway usually shows up one of three ways: the driveway has dropped away from the garage slab and left a lip the car bumps over; a panel has tipped toward the house so rainwater runs back at the foundation; or the street end has sunk where it meets the sidewalk. All three are the same problem underneath. The soil holding up that panel has shrunk, washed out or compressed, and the concrete has followed it down.

What happens on the first visit

A driveway estimate is short and specific. A contractor who knows the work checks five things before quoting a price:

1. The drop at every joint, measured with a level or string line — usually in fractions of an inch, sometimes two or three inches at the garage apron.
2. Where the voids are. A hollow sound under a tapped panel, or a gap you can see at the slab edge, shows where fill has washed out.
3. Cracks that could split during a lift. A cracked panel can often still be lifted, but the drill pattern has to account for it.
4. Where the water goes. Downspouts that empty against the driveway edge are the most common reason a panel sinks — and sinks again.
5. Which method fits the slab, followed by a written price before any drilling starts.

Why New Orleans driveways sink — and why the house doesn't

Most of New Orleans sits on soft, young sediment and drained backswamp, and the ground is still settling. The City of New Orleans puts the average subsidence rate at about 0.2 inches a year, with parts of the city — including stretches along the MRGO levee system and the Lakeview area — sinking more than 0.8 inches a year. The City lists drainage and oxidation of organic soils, groundwater withdrawal and natural compaction among the causes, and names "differential settlement and cracking" in structures not built on deep pilings as one of the results.

That last phrase explains most driveway calls in this city. Many houses here sit on pilings or raised piers; the driveway beside them sits on the top two or three feet of soil. When that soil drops, the house stays put and the driveway goes with the ground — so the lip opens up right where the driveway meets the garage, the carport slab or the front steps. It's the same reason sidewalks here buckle and patios pull away from back doors. We cover the full picture in why concrete sinks in New Orleans.

Mudjacking or polyurethane foam: which one a driveway needs

Both methods lift the slab by filling the space under it. Neither is right for every driveway, and a good estimate should say why one was chosen.

Mudjacking (also called slab jacking or limestone slurry leveling) pumps a cement-and-limestone slurry through holes about 1 to 2 inches wide. It runs $4–$9 per square foot, fills large washed-out voids economically, and has been used for decades. The slurry needs about 24 hours to set, and HomeGuide advises waiting two to three days before full vehicle use.

Polyurethane foam jacking injects an expanding two-part foam through holes about 5/8 inch wide. It runs $8–$25 per square foot, cures in roughly 15 minutes, and weighs a few pounds per cubic foot rather than the roughly 100 of slurry — which matters on soft soil that is already compressing under its own load.

For a driveway on firm fill with one large void near a downspout, mudjacking is often the better value. For a driveway on soft organic soil, or one you need to park on the same day, foam usually makes more sense. The foam vs mudjacking guide goes through the trade-offs line by line.

When a driveway should be replaced instead

Leveling is the right call when the concrete itself is sound and only the support underneath has failed. It is the wrong call when:

• The slab has broken into many small pieces, so there's nothing large enough to lift as a unit.
• The surface is crumbling or badly spalled — lifting it level won't fix the surface.
• A tree root has pushed the panel up. Leveling can only raise concrete, not lower it; root heave needs grinding or removal.
• The driveway was poured too thin or without a base and is failing everywhere at once.

If any of those apply, a contractor worth hiring will say so at the estimate. The leveling vs replacement guide and can you level a cracked slab? cover the decision in detail.

Paying for it: insurance, permits and estimates

Standard homeowners policies generally exclude settling and earth movement, so a sunken driveway is usually an out-of-pocket repair — our guide to whether insurance covers concrete leveling covers the exceptions, like a plumbing leak that washed out the base. Most contractors carry a minimum charge of $300–$700, so leveling one small section costs more per square foot than doing the whole driveway at once.

A private driveway on your lot generally doesn't need a City permit to level. The apron and sidewalk in the public right-of-way are different: the City of New Orleans requires a Sidewalk Repair Permit to repair them, and the property owner is responsible for that stretch. See the New Orleans sidewalk permit guide before work touches the street end.

What a proper driveway leveling job includes

• Drop measured at every joint before pricing
• Void check before the first hole is drilled
• Written price and method before work starts
• Drill pattern placed around existing cracks
• Lift monitored with a level or laser as it happens
• Every injection hole patched with cement grout
• Joints and cracks sealed after the lift
• Downspout and drainage advice to stop a repeat