# Floor Leveling Before Tile Installation New Orleans | New Orleans Concrete Leveling

> Floor leveling before tile installation in New Orleans: lift a settled slab first so new tile or plank doesn't crack. Free estimate within 24 hours.

URL: https://concretelevelingneworleans.com/slab-leveling-before-flooring/

# Floor Leveling Before Tile Installation in New Orleans — Lift the Slab First

A settled slab under new tile or plank flooring shows up as cracked tile, popping joints and gaps. Lifting the slab before the install is the fix self-leveler can't do.

[Call (504) 517-8336](tel:+15045178336) [Get a free estimate](#estimate)

Last updated: September 24, 2026

[New Orleans Concrete Leveling](https://concretelevelingneworleans.com/) connects homeowners, remodelers and flooring installers with independent local contractors for floor leveling before tile installation in New Orleans — lifting a settled concrete slab back into plane before tile, LVP or wood goes down. When a section of slab has dropped, pouring more self-leveling compound on top only fills the low spot — the slab is still unsupported and still moving. Lifting it back to plane from below, then finishing with a thin skim if needed, gives the new floor a stable base.

It matters most with tile. The industry flatness standard (ANSI A108.02) calls for a substrate within **1/4 inch in 10 feet** for tile with all edges shorter than 15 inches, and within **1/8 inch in 10 feet** for large-format tile. A slab that has settled an inch at an addition wall is far outside that.

## What happens on the first visit

The best time for this estimate is after the old flooring is up. The contractor checks:

1.  **Floor elevations across the room**, mapped with a laser.
2.  **Whether the drop is settlement or just an uneven pour** — only settlement needs a lift.
3.  **Cracks, especially where an addition meets the original slab.**
4.  **Plumbing under the slab**, a common cause of interior settling.
5.  **A written price** and handoff plan with your flooring installer.

## Lift or self-level? Know the difference

**Self-leveling underlayment** is a pourable cement topping that fills low spots and flattens a surface. It's the right tool for small, stable dips and a rough pour. It adds weight and does nothing about a void under the slab.

**Slab lifting** injects [polyurethane foam](https://concretelevelingneworleans.com/polyurethane-foam-leveling/) under the slab through small holes, raising the settled section back into plane and filling the void that caused it. Where a slab has settled, lift first, then let the installer skim any remaining small variation. [DIY concrete leveling vs hiring a pro](https://concretelevelingneworleans.com/guide/diy-concrete-leveling/) covers when a topping alone is enough.

## Timing it with the flooring install

The lift happens after the old floor is removed and before underlayment goes down. Foam cures in about 15 minutes, so the installer can usually start the same day or the next. Injection holes are patched flush and are hidden under the new floor. For a sloping addition or converted garage, also see [interior slab leveling](https://concretelevelingneworleans.com/interior-slab-leveling/).

Not sure which method is right for your floor slab?

A free on-site estimate answers it — drop measured, voids checked, written price. Free estimate within 24 hours.

[(504) 517-8336](tel:+15045178336) [Estimate the cost first](https://concretelevelingneworleans.com/tools/concrete-leveling-cost-estimator/)

## Pricing a pre-flooring lift

These jobs are quoted after the elevation survey. [HomeGuide](https://homeguide.com/costs/mudjacking-cost) lists polyurethane foam at **$8–$25 per square foot**, with a typical **$300–$700 minimum**. Usually only part of a room has settled, so the lifted area is smaller than the floor you're replacing.

## What a proper pre-flooring slab lift includes

-   Laser elevation map of the room
-   Settlement separated from uneven pour
-   Plumbing check recommended where signs exist
-   Written price and schedule for the installer
-   Foam lift into plane from below
-   Holes patched flush for underlayment
-   Crack at old/new joint addressed
-   Final elevation readings handed to the installer

## Self-leveler vs cheapest operator vs a proper slab lift

| Factor | DIY patch or topping | Cheapest operator | Proper leveling job |
| --- | --- | --- | --- |
| Fixes the void under the slab | No | Sometimes | Yes |
| Actually raises the slab | No | Yes | Yes |
| Drop measured at every joint first | No | No | Yes |
| Method chosen for your soil | n/a | Whatever rig they own | Yes |
| Written price before drilling | n/a | Rarely | Yes |
| Holes patched, joints sealed | n/a | Holes only | Yes |
| Drainage cause addressed | No | No | Yes |
| Carries liability insurance | n/a | Ask | Ask — and verify |
| Typical life | Cracks as the slab keeps moving | Short if the cause isn’t fixed | 5–10+ years (mudjacking) |
| Typical cost, 150 sq ft patio | Materials only | Lowest bid | $600–$1,400 slurry · ~$1,200–$3,750 foam |

Proper-job cost and life from [HomeGuide's mudjacking cost data](https://homeguide.com/costs/mudjacking-cost); foam range calculated at HomeGuide's $8–$25/sq ft. Resurfacers and self-leveling toppings cover the surface; they don't lift the slab.

## Slab Leveling Before Flooring: related guides

-   [Decision Guide DIY concrete leveling vs hiring a pro](https://concretelevelingneworleans.com/guide/diy-concrete-leveling/)
-   [Decision Guide Can you level a cracked concrete slab?](https://concretelevelingneworleans.com/guide/can-you-level-a-cracked-slab/)

Free estimate line

[(504) 517-8336](tel:+15045178336)

Call now for a free, no-hassle quote. Estimates within 24 hours.

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What a good estimate records

-   Drop at each joint, in inches
-   Void locations and size
-   Method and why it was chosen
-   Drainage fix, if needed
-   Written price and timing

[Free tool Is it a leveling job? Take the 2-minute assessment →](https://concretelevelingneworleans.com/tools/concrete-leveling-assessment/)

Step by step

## How pre-flooring slab leveling works

1.  01
    
    ### Remove old flooring
    
    The old floor comes up so the slab can be surveyed and drilled.
    
2.  02
    
    ### Map the slab
    
    A laser survey shows where and how far the slab settled, and you get a written price.
    
3.  03
    
    ### Lift into plane
    
    Foam is injected through small holes until the settled section is back in line with the rest of the floor.
    
4.  04
    
    ### Patch and hand off
    
    Holes are patched flush, and the installer gets the final readings for any skim coat.
    

Get your floor slab measured and priced.

Free estimate within 24 hours. Call (504) 517-8336 or send a request.

[Call (504) 517-8336](tel:+15045178336) [Request an estimate online](https://concretelevelingneworleans.com/contact/)

FAQ

## Slab Leveling Before Flooring questions

### How flat does a slab need to be for tile?

ANSI A108.02 calls for no more than 1/4 inch in 10 feet for tile with all edges shorter than 15 inches, and 1/8 inch in 10 feet for large-format tile with any edge 15 inches or longer.

### Can't I just use self-leveling compound?

For small, stable dips, yes. For a slab that has settled because the soil under it dropped, self-leveler fills the surface but leaves the slab unsupported, so tile can still crack as it moves.

### How soon can flooring go down after a lift?

Polyurethane foam cures in about 15 minutes, so installation can usually begin the same day or the next.

### Do I need to remove my old floor first?

It's best. The slab can be surveyed accurately and holes drilled anywhere once the old covering is gone.

### Who does the work, and are they licensed and insured?

New Orleans Concrete Leveling is a free service that connects you with an independent local contractor. We ask every contractor we work with to carry a license and insurance — and we recommend confirming both before work begins. Louisiana requires a state license for residential jobs over $75,000 and home improvement registration from $7,500 to $75,000, so most leveling jobs fall below both — which makes insurance the check that matters. See [how to verify a Louisiana contractor](https://concretelevelingneworleans.com/guide/louisiana-contractor-license-concrete/).

## Related services

-   [Interior Slab Leveling Lift settled interior slab sections in additions, slab-on-grade homes and converted garages without tearing out the floor. See how it works](https://concretelevelingneworleans.com/interior-slab-leveling/)
-   [Garage Floor Leveling Raise a sinking garage or carport slab, close the step at the driveway and find out whether the cracking is structural. See how it works](https://concretelevelingneworleans.com/garage-floor-leveling/)
-   [Polyurethane Foam Leveling Lightweight expanding foam through 5/8-inch holes. Cures in about 15 minutes. $8–$25 per sq ft. See how it works](https://concretelevelingneworleans.com/polyurethane-foam-leveling/)

Ready to level your floor slab?

Call now for a free, no-hassle quote. Estimates within 24 hours.

[Call (504) 517-8336](tel:+15045178336) [Request a free estimate](https://concretelevelingneworleans.com/contact/)