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ARMORTHANE PROTECTING YOUR WORLD

PROTECTING YOUR WORLD

ARMORTHANE PROTECTING YOUR WORLD

Concrete
Leveling Cost:
2026 Price Guide

Per square foot, per project and against replacement, with the math shown. We make the polyurethane lifting foam, so we can tell you what drives the price, when mudjacking is the smarter buy, and when to tear it out.
Concrete Lifting Quotes

Want a real number for your slab? Get a quote from a certified applicator.

Tell us what sank (driveway, sidewalk, patio, steps or garage floor) and roughly how far. We'll connect you with an ArmorThane-certified applicator who can quote the lift, the foam and the joint sealing in writing.

  • Driveways, garage aprons and sidewalks
  • Patios, porches, steps and pool decks
  • Fixed price or a not-to-exceed on the quote
  • Contractors: ask about Lift 200 and Lift 300 foam
Rather talk now? Call (417) 831-5090
Step 1 of 3
$1,235
Average leveling job
Typical $661–$1,874 (HomeAdvisor, 2026)
$3–$7
Mudjacking, per sq ft
Median of six 2025–2026 guides
$7–$17
Foam lifting, per sq ft
Typical; published $5–$25
$7–$16
Tear out and repour
Per sq ft, median of four figures
Quick answer

Most homeowners pay $661–$1,874 to level concrete, about $1,235 on average (HomeAdvisor and Angi, 2026). Per square foot, mudjacking runs $3–$7, stone slurry grout $6–$15 and polyurethane foam $5–$25, most often $7–$17. Nearly every contractor has a $300–$700 minimum. Tearing out and repouring runs about $7–$16 per square foot, so mudjacking usually costs less than half of replacement. Foam saves less than most guides suggest, and on a whole driveway it can cost about the same.

Concrete leveling prices look chaotic, and a lot of that is because contractors quote by the square foot while the real cost is set by something you can't see: how much empty space is under the slab. A patio that dropped half an inch and a driveway sitting over a washed-out hole can be the same size and need several times as much material. So this page gives you the published numbers, then shows the math behind them.

We make ArmorFoam Lift 200 and Lift 300, the polyurethane foams certified applicators inject under sunken slabs. That's a reason to be straight with you, not a reason to oversell foam. Mudjacking is cheaper up front and is sometimes the right call. Some slabs shouldn't be lifted at all. We'll show you which is which.

What's in this guide
  1. 1Concrete leveling cost calculator
  2. 2Cost per square foot by method
  3. 3Driveway, sidewalk, patio and garage costs
  4. 4Mudjacking vs polyjacking vs stone slurry
  5. 5Level or replace? (checker)
  6. 6What drives the price
  7. 7Is your quote fair? (checker)
  8. 8Costs quotes leave out, and why concrete sinks
  9. 9Can you level concrete yourself?
  10. 10For contractors: pricing a polyjacking job
  11. 11ArmorFoam Lift 200 and Lift 300
  12. 12Concrete leveling cost FAQ
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Concrete leveling cost calculator

Enter how many slabs sank and how big they are. The calculator prices all three lifting methods at the 2026 working bands, applies the contractor's minimum charge, adds any extras, and puts replacement next to it so you can see the gap. It also shows cost per year of service, which is where foam and mudjacking end up surprisingly close.

Cost calculator

Estimate mudjacking, foam and replacement for your slab

Pick Low for small drops (about an inch) and easy access. Pick High for big drops, steps, tight access or a high-cost metro. Sidewalk squares are often 4x4 or 5x5 ft; driveway panels often 10x10.

Published: $300–$700, some to $2,000
Also include
$2,400
Estimate at selected level
$1,400–$3,400
Low–high range
$12.00
Per sq ft, leveling only
104%
Of replacement cost
MethodRangeTypical$/sq ft (typical)Published lifespan$/sq ft per year
Mudjacking$600–$1,400$1,000$5.005–10 yr$0.67
Stone slurry grout$1,200–$3,000$2,100$10.505–7 yr$1.75
Polyurethane foam (polyjacking) Selected$1,400–$3,400$2,400$12.0010–20 yr$0.80
Tear out and repour$1,400–$3,200$2,300$11.50up to 30 yr$0.38

Area: 200 sq ft (2 x 10 x 10 ft). Cross-check: one lifting contractor’s rule of thumb ($150–$250 per inch of lift per 10x10 section) gives $600–$1,000 at a 2.0-in. drop. National guides run higher; real quotes often land between the two. Small and partial replacements cost more per sq ft than the band shows: HomeAdvisor puts replacing a 100 sq ft sidewalk at $1,300–$2,600. Replacement assumes $7–$16/sq ft including tear-out.
Send these numbers to a certified applicator for a firm quote.

How we calculated this: cost = the larger of your minimum charge or area x the $/sq ft band for the method (mudjacking $3–$7, stone slurry $6–$15, foam $7–$17; typical is the midpoint). Replacement = area x $7–$16. Add-ons: cracks $100–$800 each, sealing $1–$3/sq ft, drainage $300–$1,500. Cost per year = typical $/sq ft ÷ the midpoint of the published lifespan. All are estimates built from the published ranges below, not quotes.

2026 pricing

Concrete leveling cost per square foot

Concrete leveling costs about $3–$7 per square foot for mudjacking, $6–$15 for stone slurry grout and $5–$25 for polyurethane foam, with most foam jobs landing around $7–$17. Those are installed prices, labor included. Here's what each major cost guide publishes, and the bands we built from them.

Cost per square foot by method

Source (date)MudjackingStone slurry groutPolyurethane foamSelf-leveling (interior overlay)
HomeAdvisor (Jun 2026)$3–$6–$5–$25$1–$5 + labor
Angi, leveling (Jul 2026)$3–$6$7–$25$5–$25$2–$6
Angi, mudjacking (Aug 2026)$3–$8–––
A-1 Concrete Leveling (Mar 2026)$3–$6Priced per project$5–$25–
HomeGuide (Nov 2025)$4–$9$6–$15$8–$25$2–$5
Northland Companies (Sep 2025)$3–$8–$5–$25–
Fixr (Jan 2025)––$20–$25 (outlier)$1.80–$5
Working band we use$3–$7 (mid $5)$6–$15$7–$17 (mid $12)Not lifting
Mudjacking band: the median low and median high of the six guides. Foam band: HomeAdvisor's size-stated driveway examples ($1,500–$3,200 for 200 sq ft, $3,200–$7,500 for 450 sq ft), because a flat $5–$25 is too wide to plan with. Stone slurry: HomeGuide. Our synthesis, re-pulled each January.

Average concrete leveling cost

HomeAdvisor and Angi both report an average of $1,235, with most jobs between $661 and $1,874 and outliers from $325 to $3,777. Angi's leveling article puts the average near $1,174. HomeGuide's range is wider, $700–$5,000, and A-1 Concrete Leveling quotes $750 to $6,000 or more. Fixr prices 100 square feet at $500–$1,700. The spread isn't sloppiness. It's job size: a stoop and a three-car driveway are both "a leveling job."

Why foam prices per square foot are all over the map

Foam is sold and used by the pound, and pounds follow volume, not area. Take one 10x10 slab. If it tipped an inch at one edge, the wedge of space under it is about 4 cubic feet. If it sank 3 inches evenly, that's 25 cubic feet, six times the foam for the same "100 square feet." That's why published foam prices stretch from $5 to $25, and why one lifting contractor prices by the inch instead: $150–$250 per inch of lift for each 10x10 section (The Concrete Hero). Mudjacking has the same physics, but its material is cheap enough that area-based pricing holds up better.

Reading the averagesA national average blends sidewalks, stoops and whole driveways. Use it to sanity-check a quote, not to budget. The calculator above, or the project table below, gets you much closer.
What people actually pay

Cost to level a concrete driveway, sidewalk, patio or garage floor

Leveling two sunken driveway panels (200 square feet) costs about $600–$1,400 by mudjacking or $1,400–$3,400 with foam at the national bands. A sidewalk square is often a minimum-charge job, $300–$700. Here are the published project prices side by side, then our worked examples at stated sizes.

ProjectHomeGuide: mudjacking / foam (size)HomeAdvisorAngi, mudjackingA-1: mudjacking / foam
Steps or stoop$300–$700 / $320–$1,000 (40 sq ft)$220–$550; foam $450–$950–$890–$2,160 / $1,335–$3,240
Sidewalk$400–$900 / $800–$2,500 (100 sq ft)100 sq ft: $320–$650; foam $650–$2,700$300–$900 (50–150 sq ft)$675–$2,160 / $1,015–$3,240
Patio or porch$600–$1,400 / $1,200–$3,800 (150 sq ft)$650–$3,400$500–$1,500 (100–300 sq ft)$810–$3,150 / $1,215–$4,725
Driveway$1,800–$4,100 / $3,600–$11,300 (450 sq ft)200 sq ft: $650–$1,300; foam $1,500–$3,200. 450 sq ft: $1,500–$3,000; foam $3,200–$7,500$800–$2,400 (200–600 sq ft)$810–$3,780 / $1,215–$5,670
Garage floor$1,400–$3,200 / $2,900–$9,000 (360 sq ft)One section $550–$1,100; full 2-car $1,250–$2,700; foam about double$700–$2,000 (150–400 sq ft)$810–$4,050 / $1,215–$6,075
Pool deck$1,600–$3,600 / $3,200–$10,000 (400 sq ft)–$800–$2,500 (150–500 sq ft)$1,350–$3,960 / $2,025–$5,940
AC pad–––$675–$1,260 / $1,015–$2,485
Basement floor$3,200–$7,200 / $6,400–$20,000 (800 sq ft)Indoor floors, mudjacking: $650–$4,300––
Foundation slab$6,000–$13,500 / $12,000–$37,500 (1,500 sq ft)1,500 sq ft: $4,800–$9,000; foam $9,000–$39,000$700–$2,000 (200–800 sq ft)–
HomeGuide (Nov 2025), HomeAdvisor (Jun 2026), Angi (Aug 2026), A-1 Concrete Leveling (Mar 2026; sizes not stated). A-1 is a stone-slurry company and also publishes slurry prices between its mudjacking and foam columns.
Worked example (our math)Sq ftMudjackingStone slurryFoamTear out and repour
Sidewalk, one 10x10 section100$500–$700$600–$1,500$700–$1,700$700–$1,600*
Patio or porch, 10x15150$500–$1,050$900–$2,250$1,050–$2,550$1,050–$2,400
Driveway, two 10x10 panels at the garage200$600–$1,400$1,200–$3,000$1,400–$3,400$1,400–$3,200
Garage floor, 2-car (18x20)360$1,080–$2,520$2,160–$5,400$2,520–$6,120$2,520–$5,760
Whole 2-car driveway, 20x20400$1,200–$2,800$2,400–$6,000$2,800–$6,800$2,800–$6,400
Basement floor800$2,400–$5,600$4,800–$12,000$5,600–$13,600$5,600–$12,800
Our working bands with a $500 minimum. *Small replacements cost more per square foot than the band: HomeAdvisor puts replacing a 100 sq ft sidewalk at $1,300–$2,600.

Driveways and garage aprons

The panel against the garage slab is a common one to drop: it sits on backfill next to the foundation, and downspouts often empty right beside it. For a two-panel apron (200 square feet), HomeAdvisor publishes $650–$1,300 mudjacked and $1,500–$3,200 with foam, and one lifting contractor lists $800–$1,200 for two 10x10 panels that dropped 2 inches. Leveling a whole 450-square-foot driveway runs $1,500–$4,100 mudjacked and $3,200–$11,300 with foam across HomeAdvisor and HomeGuide.

For comparison, HomeGuide prices a new standard driveway at $6–$10 per square foot, $2,400–$6,000 for a 20x20 two-car, plus $2–$6 per square foot to remove the old one. A properly installed concrete driveway lasts up to 30 years. If yours is near that and the surface is tired too, price both. After lifting, sealing the slab and the joints is cheap insurance; see our concrete driveway sealer page.

Sidewalks and walkways

Sidewalk squares are small, so they're usually priced at a minimum charge unless you bundle them. One contractor lists a single section at $250–$450, or about $60 when done with ten others (The Concrete Hero). That's the best argument for doing every trip edge at once, or splitting a visit with neighbors.

How much of a lip is a problem? The ADA standards, which govern public walkways rather than private homes, allow a change in level of 1/4 inch with no treatment and 1/2 inch if the edge is beveled no steeper than 1:2. Past 1/2 inch it's treated as a ramp. It's a useful yardstick for your own walk too.

Patios, porches and steps

Patios and porches that slope toward the house send water to the foundation, which is often why people finally call. Steps cost more than their size suggests: they're heavy, and they often have to be drilled from the sides or straight through. HomeAdvisor puts foam-lifting steps at $450–$950, "with some jobs costing more due to the weight."

Garage floors

HomeAdvisor prices one sunken garage section at $550–$1,100 and a whole two-car floor at $1,250–$2,700 by mudjacking, with foam "roughly double." Indoors, foam's 5/8-inch holes are easier to hide than mudjacking's roughly 2-inch holes, and nothing needs to cure for days in the middle of the garage. Planning a floor coating? Lift first, seal the cracks, then coat. Our garage floor coating cost guide prices that step.

Pool decks

HomeGuide puts a 400-square-foot pool deck at $1,600–$3,600 mudjacked and $3,200–$10,000 with foam. This is where foam earns its premium: it's hydrophobic, so wet soil doesn't stop it, and it adds almost no weight next to the pool shell. If the deck surface is worn as well as sunken, our pool deck resurfacing guide covers the coating side.

Basement floors, and when it's really the foundation

A sunken basement or shop floor slab can be lifted like any other slab: HomeGuide puts 800 square feet at $3,200–$7,200 mudjacked and $6,400–$20,000 with foam. For heavy floors and higher loads, our Lift 300 is the denser of our two lifting foams.

A house foundation that's settling is a different job. Cracked walls, doors that stick and floors that slope through the whole house point to the footings, and the fix there is usually piers or underpinning after an engineer looks at it. Our foundation repair guide walks through those methods. Slab lifting doesn't replace them.

Newly poured concrete foundation walls with excavated soil beside them
Foundation walls and footings carry the house. Settlement there calls for an engineer, not slab lifting.
Pick a method

Mudjacking vs polyjacking vs stone slurry: cost and value

Mudjacking is the cheapest up front, usually a third to two-thirds of the foam price for the same job. Foam costs more but uses smaller holes, is back in use within the hour and has longer published lifespans. Divide price by lifespan and the two land close together. Stone slurry sits between them on price.

MethodInstalled $/sq ftHole sizeBack in usePublished lifespan$/sq ft per year (our calc)Good fit
Mudjacking (cement, soil and water slurry)$3–$7About 2 in. (1–2 in.)24–48 hours5–10 years$0.30–$1.40 (mid $0.67)Budget exterior slabs, big shallow voids, no rush
Stone slurry grout (limestone slurry)$6–$15About 1 in.Longer than foam5–7 years (HomeGuide)$0.86–$3.00 (mid $1.75)Where a local slurry company prices it well
Polyurethane foam (polyjacking)$7–$17 ($5–$25 published)5/8 in.15–60 minutes; ArmorFoam Lift: drive on in 30 min or less10–15+ years (HomeGuide), 20+ (Angi)$0.35–$1.70 (mid $0.80)Steps, garage and basement floors, pool decks, wet soil, next to the house
Tear out and repour$7–$16–Days to weeksUp to 30 years (driveway, HomeGuide)$0.23–$0.53 (mid $0.38)Broken, crumbling or worn-out concrete
Hole sizes and cure times from Angi, Groundworks and HomeGuide; lifespans are what cost guides publish, not measured service lives. Cost per year = $/sq ft ÷ lifespan, ranges from low price over long life to high price over short life.

Two things stand out. First, replacement is the cheapest per year, if the new slab goes onto a base that won't wash out again. If the cause of settling isn't fixed, new concrete sinks too, and the per-year math collapses. Second, foam and mudjacking cost about the same per year of service. So the choice usually comes down to the job: foam's small holes and fast cure matter on a garage floor or pool deck, and they matter much less on a back patio where you can wait a couple of days.

Weight is the other difference. ArmorFoam Lift 200 weighs 2.5 pounds per cubic foot, roughly 1/60 of the 140–150 pound concrete it holds up. Mudjacking pumps in a cement-and-soil slurry, and that adds real load to soil that has already settled once. Our full mudjacking vs polyjacking comparison covers the process differences, and the foam concrete lifting page explains how injection works.

Our honest takeIf you're pricing a big exterior slab, the budget is tight and you can keep off it for a couple of days, a good mudjacking contractor is a legitimate choice. Foam is the better product in more places, but it isn't the cheapest, and anyone who tells you it is hasn't priced both.
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Concrete leveling vs replacement: which should you do?

Level it when the slab is in one or two solid pieces, the surface is sound and whatever washed out the base can be fixed. Replace it when it's broken into several pieces, has cracks wider than 1/4 inch or is spalling and crumbling (HomeGuide, Angi). Tearing out and repouring costs about $7–$16 per square foot including removal.

Lift-or-replace checker

Is your slab a lifting job?

Answer for the worst slab. The checker gives a verdict, the reasons, a method suggestion and a price comparison.

Water
Lift itGood candidate
  • Solid slab, settled once, no obvious water source: the textbook lifting job.
  • Hairline cracks don’t stop a lift. Seal them afterward.
Method

Either method works. Mudjacking is the budget pick; foam costs more but uses smaller holes, cures in under an hour and has longer published lifespans.

$600–$1,400
Mudjacking, 200 sq ft
$1,400–$3,400
Foam lifting
$1,400–$3,200
Tear out and repour

2026 working bands with a $500 minimum. Estimates, not quotes.

What replacement costs

ItemPublished costSource (date)
Replacement, removal included$6.50–$16.50/sq ftAngi (Jul 2026)
Replacement$6–$15/sq ftHomeGuide (Nov 2025)
New driveway, standard$6–$10/sq ft; 20x20 two-car $2,400–$6,000HomeGuide (Jun 2025)
New 4-in. slab$6–$8/sq ftHomeGuide (Feb 2026)
Removal and disposal$3–$8/sq ft; driveway removal $1,200–$4,500HomeGuide (May 2025)
Sidewalk, 100 sq ft replaced$1,300–$2,600HomeAdvisor (Jun 2026)
Our $7–$16 band is the median low (rounded) and median high of the first four rows (the driveway row with its $2–$6 removal added, the slab row with $3–$8 removal added).

When lifting is the better buy

  • The slab is solid and matches. Lifting keeps concrete that's the same color and age as everything around it. A new panel in an old driveway never quite matches.
  • You need it back fast. ArmorFoam Lift is rated for traffic within 30 minutes. A new pour needs days before light use and keeps gaining strength for weeks.
  • Demolition would be a mess. Steps against the house, a slab under a deck or a pool deck next to the coping are expensive to break out.
  • It's a small, partial job. Replacement per square foot climbs on small areas; HomeAdvisor's 100 sq ft sidewalk replacement runs $13–$26 a square foot.

When replacement wins

  • It's broken into several pieces, or cracks are wider than 1/4 inch.
  • The surface is spalled or crumbling, so you'd be lifting concrete that needs replacing anyway.
  • It's near the end of its life (up to 30 years for a driveway), or you're regrading and changing the layout.
  • The base needs rebuilding anyway, for example over a failed utility trench.
Why quotes differ

What drives concrete leveling prices

Four things set most of the price: how much space is under the slab, how many slabs are in the visit, which method you choose and how hard the slab is to reach. Everything else, including crack sealing and drainage fixes, is an add-on.

How far it sank, and the void under it

Deeper voids and higher lifts take more material and time (A-1). For foam, this is the biggest lever: a slab sitting on a washout can take several times the foam of one that simply tipped.

Number of slabs in one visit

Travel, setup and cleanup are fixed. One contractor's single sidewalk section runs $250–$450 alone, or about $60 as one of eleven (The Concrete Hero).

Minimum charges

$300–$700 at most contractors (HomeGuide), $400–$1,500 (The Concrete Hero), up to $2,000 (A-1). Small jobs are priced by the minimum, not the square foot.

Method

Mudjacking $3–$7, stone slurry $6–$15, foam $7–$17 per square foot in our working bands. HomeAdvisor calls foam on garage floors "roughly double" mudjacking.

Access

Fences, landscaping and tight side yards slow a crew down (A-1). Steps and heavy slabs cost more than their area suggests.

Why it sank

If water is still washing out the base, a good contractor will want it fixed, and that's extra: drainage work runs $300–$1,500 on published figures.

Cracks and joints

Usually not included in the lift (The Concrete Hero). Budget $100–$800 per crack across HomeGuide and Angi.

Location and season

Minimums move with the market and the time of year (The Concrete Hero). There's no reliable published index for regional pricing, so the fix is two or three quotes.

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Is your concrete leveling quote fair?

Enter what the quote says. The checker converts it to price per square foot and per inch of lift, compares it with the published band for that method and with replacement, and lists the questions to ask before you sign.

Quote checker

Normalize a leveling quote and spot the red flags

Use the total for the lifting work. If the quote itemizes crack repair or drainage, leave those out of the total.

The quote includes
$14.50
Per sq ft
$7–$17
Working band, foam
126%
Of typical replacement
$1,450
Per inch of lift

In range Inside the 2026 working band for this method.

Ask about these
  • Priced per pound (or per bag) with no cap. Ask for a not-to-exceed total; one contractor’s guide shows a $600 patio job turning into $900 on overage.
  • A 2-year warranty is short for foam. The Concrete Hero calls 1–2 years, or none, a warning sign.
  • Joint and crack sealing isn’t listed. It usually isn’t included, and open joints let water wash out the base again.
  • Nobody has named why it sank. Downspouts, grading and leaks are worth fixing in the same visit.
  • The quote is inside the tear-out-and-repour range for this area ($1,400–$3,200). Get a replacement price too.

Questions to ask a concrete lifting contractor

  1. Which method and which material, by name? For foam, which density?
  2. Is the price fixed, or per pound? If per pound, what's the not-to-exceed?
  3. How many holes, what size, and how will they be patched?
  4. What do you think made it sink, and what are you doing about that?
  5. Are joints and cracks sealed as part of the job?
  6. How close to level will it get, and what if a slab cracks during the lift?
  7. How soon can I walk and drive on it?
  8. What's the warranty, in writing, and what voids it?
  9. Are you insured, and do you call in utility locates before drilling?
  10. Can you lift the other low spots in the same visit?

Red flags in a leveling quote

  • Open-ended per-pound pricing. Overage is how a $600 patio becomes a $900 one (The Concrete Hero).
  • A short or missing warranty. Mudjacking warranties typically run 2–3 years; for foam, 1–2 years or none is a warning sign.
  • No word on the cause. Lifting over an active washout buys time, not a fix.
  • A price below every published range. Ask what's different.
Get a second quote from a certified applicator
Read the fine print

Costs most leveling quotes leave out, and why concrete sinks

A lifting quote usually covers drilling, lifting and patching the holes. Crack and joint sealing, sealing the surface, drainage work and permits are typically separate. Together they can add a few hundred to a couple of thousand dollars, and the drainage piece is the one that keeps you from paying for the lift twice.

Add-onPublished costSource
Crack repair or sealing$250–$800+ per crack; $50–$800+; $100–$400HomeGuide leveling; HomeGuide polyjacking; Angi
Sealing the surface$1–$3+ per sq ftHomeGuide
Drainage improvements$200–$1,500+; $500–$2,000+; $300–$1,000HomeGuide mudjacking; HomeGuide polyjacking; Angi
Soil stabilization$500–$2,000HomeGuide polyjacking; Angi
Permits$50–$300HomeGuide
Joint caulking per linear footWe couldn't find a published figure; ask for it as a line item.

Why concrete sinks

Concrete doesn't sink on its own. The soil under it compresses, shrinks or leaves. The usual causes:

  • Poorly compacted fill. Soil backfilled around a new house can settle for years, which is why aprons, porches and stoops next to the foundation often drop.
  • Water washing out the base. Downspouts, gutters and sprinklers carry fine soil out from under slab edges and joints. By our math, an inch of rain on 1,000 square feet of roof is about 620 gallons, and a short downspout drops all of it in one spot.
  • Clay that shrinks and swells. Clay soils shrink in drought and swell when wet, and slabs follow. Our foundation guide lists drought shrinkage and poor drainage among the common causes of settlement.
  • Tree roots and old trenches. Roots pull moisture from the soil, and a utility trench that wasn't compacted will settle under whatever was poured over it.
  • Frost. Where soil freezes, water under a slab lifts it in winter and lets it down in a different place in spring.

Keep it from sinking again

Extend downspouts well away from the slab, regrade so water runs off rather than under, and keep joints and cracks sealed so water can't get into the base. Our basement waterproofing cost guide covers drainage fixes that protect the house as well. For cracks that are wider or active, see polyurea concrete crack injection.

Do it yourself?

Can you level concrete yourself?

Not well, beyond very small pieces. HomeAdvisor suggests that experienced DIYers limit themselves to projects of about 4 square feet, and Angi calls DIY leveling an advanced project that needs specialized equipment, materials and skill. The risk isn't only a poor lift. Push one side of a slab too fast and it cracks.

"Self-leveling concrete" is a different product

A lot of "concrete leveling" searches are really about interior floors. Self-leveling underlayment is poured over a slab to make the surface flat for tile or flooring. It costs about $2–$5 per square foot (HomeGuide), and it doesn't raise a sunken slab. If your basement floor dropped at one corner, you need lifting. If it's just wavy, you need a self-leveler.

Can you level concrete with spray foam?

Not with insulation foam or a can from the hardware store. Lifting foam is its own formulation: two-component, closed-cell, hydrophobic and dense. ArmorFoam Lift 200 is 2.5 pounds per cubic foot and Lift 300 is 3.75, injected through small holes into the soil under the slab with a portable resin pump. The ArmorFoam line has both kinds: insulation foams built for walls and roofs, and the Lift foams built to carry a slab. They aren't interchangeable. (If insulation is what you're really pricing, see spray foam insulation cost.)

Before anyone drillsLifting means drilling through the slab into the ground. Call your local utility-locate service first, and keep clear of any lines buried under the slab.
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For contractors: what a polyjacking job costs you

A polyjacking job's cost is foam pounds plus crew time plus getting there. The foam is the only part that really changes from job to job, and it follows the volume you fill: the lift itself plus the void you can't see. This tool works out theoretical foam, applies your own field factor, and tells you what you can afford to pay per pound of foam at the national price bands.

Polyjacking job estimator

Foam pounds, break-even and price per square foot

Crew, mobilization, margin and field factor defaults are example inputs, not industry data. Replace them with your own numbers.

Average gap under the slab; assumption
From your job logs; 1.5 is an example
HomeGuide: typical jobs take 2–6 hours
25.0 ft³
Volume to fill
63 lb
Theoretical foam
94 lb
At your field factor
$13.12
Max foam cost per lb

At the typical national band this job prices at $2,400 ($12/sq ft). After $300 labor, $150 mobilization and a 30% margin, that leaves $1,230 for foam: $13.12 per lb at your field factor. Enter your delivered foam price per lb to see your margin. The slab weighs about 9,667 lb (48 lb/sq ft at 145 lb/ft³). For scale, one maker’s 2.8 pcf lifting foam is rated 27 psi (3,888 lb/sq ft) at 10% compression, so the foam isn’t the weak link; the soil under it is.

How we calculated this: volume = area x (drop x 0.5 for a tipped slab or x 1 for an even drop, plus the void allowance) ÷ 12; theoretical foam = volume x free-rise density; field foam = theoretical x your field factor. Market price = the larger of your minimum or area x the foam band. Max foam cost per lb = (price x (1 − margin) − labor − mobilization) ÷ field pounds. Slab weight uses 145 lb/ft³, the middle of the 140–150 range for normal concrete.

Why the field factor matters most

Theoretical foam is the floor, not the estimate. Foam that rises against a slab and packed soil is confined, so it ends up denser than its free-rise rating. It also runs into voids nobody measured and into loose soil. Track actual pounds against theoretical on your first jobs and you'll know your factor for each kind of slab. That number, more than the foam price, decides whether $7 a square foot works for you.

Density, strength and choosing Lift 200 or Lift 300

Denser foam is stronger. One manufacturer's published line runs from 27 psi at 2.8 pcf to 80 psi at 4.0 pcf and 112 psi at 5.0 pcf (NCFI). A 4-inch slab weighs only about 48 pounds per square foot, a third of a psi, so for sidewalks, patios and driveways the soil is the weak link, not the foam. We make ArmorFoam Lift 200 (2.5 pcf) for residential slabs, and Lift 300 (3.75 pcf) for commercial and industrial slabs and higher dead loads. Both are water-blown and hydrophobic, and both can be injected into cold, damp or wet soil.

Equipment

Lift foam goes in with a portable liquid resin pump system rather than a line of concrete mixers. We build mobile spray rigs, and startup packages start at $25,000. Talk to us about which setup fits the lifting work in your area.

ArmorThane lifting foam

ArmorFoam Lift 200 and Lift 300: who installs it

We make two slab-lifting foams in Springfield, Missouri. Lift 200 is a 2.5 pcf, closed-cell, water-blown foam for driveways, sidewalks and patios. Lift 300 is 3.75 pcf, for commercial and industrial slabs and heavier loads. Both are hydrophobic, can be injected into cold, damp or wet conditions, and are rated for vehicle traffic within 30 minutes or less.

We don't lift slabs ourselves. Independent certified applicators do, and they set their own prices, so use the tools on this page to check any quote, ours included. If a mudjacking contractor near you is the better fit for your slab and your budget, that's a fine outcome too.

Find a lifting applicator →How foam lifting works
ArmorThane Mobile Coatings Unit trailer with contractors standing beside it
An ArmorThane Mobile Coatings Unit.
2.5 pcf

Lift 200

Residential slabs: patios, driveways, sidewalks. Closed-cell, water-blown.

3.75 pcf

Lift 300

Commercial and industrial slabs, heavier dead loads.

≤30 min

Drive-on time

Both foams are rated for driving on within 30 minutes or less.

For contractors

Add slab lifting to your rig.

Lifting jobs are short, and the foam is the main variable. We supply Lift 200 and Lift 300, spray equipment and training at your location, alongside our polyurea coatings and spray foam. Not a franchise: no franchise fee, no royalties.

Become an applicatorLift 300 details

Call (417) 831-5090 in the US or 780-444-6200 in Canada.

Straight answers

Concrete leveling cost FAQ

How much does concrete leveling cost per square foot?

Mudjacking runs about $3–$7 per square foot (the median of six 2025–2026 cost guides), stone slurry grout $6–$15, and polyurethane foam $5–$25, most often $7–$17. Small jobs cost more per square foot because nearly every contractor has a $300–$700 minimum, and some charge up to $2,000.

How much does it cost to level a concrete driveway?

Two sunken 10x10 sections (200 sq ft) run about $600–$1,400 mudjacked or $1,400–$3,400 with foam at the national bands; one lifting contractor publishes $800–$1,200 for that job at a 2-inch drop. A full 450 sq ft driveway runs $1,500–$4,100 mudjacked and $3,200–$11,300 with foam (HomeAdvisor, HomeGuide). Use the calculator for your slab.

How much does polyjacking (foam jacking) cost?

Published ranges are $5–$25 per square foot (HomeAdvisor, Angi, Northland, A-1) and $8–$25 (HomeGuide), or about $1,000–$3,000 for a typical residential job. Foam is really priced by how much it takes to fill the void and make the lift, so a slab that dropped an inch costs far less per square foot than one sitting on a washed-out hole.

Is concrete leveling cheaper than replacing concrete?

Mudjacking usually is: $3–$7 per square foot against $7–$16 to tear out and repour. Foam is less clear-cut. On a small sidewalk job HomeAdvisor puts foam at $650–$2,700 against $1,300–$2,600 to replace, but on a whole driveway the national foam figures overlap replacement. There, foam's case is speed, no demolition and keeping concrete that still matches.

Is mudjacking or polyjacking cheaper?

Mudjacking is cheaper up front, usually a third to two-thirds of the foam price for the same job in published examples. Foam lasts longer on the published figures (10–20 years against 5–10), uses 5/8-inch holes instead of about 2-inch holes, and can be driven on within 30 minutes. Over the life of the repair the cost per year comes out similar.

How long does concrete leveling last?

Cost guides put mudjacking at 5–10 years, stone slurry at 5–7 years and polyurethane foam at 10–15+ years (HomeGuide) or 20+ years (Angi). The real limit is whatever made the slab sink. If water keeps washing out the base, any method will settle again.

Is concrete leveling worth it?

Usually, when the slab is in one or two solid pieces and the cause of settling can be fixed. It restores drainage and removes trip hazards in a few hours, for less than replacement in most cases. It isn't worth it on concrete that's broken into several pieces, crumbling, or near the end of its life.

Why is there a minimum charge for concrete leveling?

Travel, setup and cleanup cost the same for one sidewalk square as for ten. Published minimums run $300–$700 (HomeGuide), $400–$1,500 (The Concrete Hero) and $300–$2,000 (A-1 Concrete). Bundling several slabs, or going in with a neighbor, spreads that cost.

Can you level concrete yourself?

Not well, beyond very small pieces. HomeAdvisor suggests experienced DIYers limit themselves to areas of about 4 square feet, and Angi calls DIY leveling an advanced project needing specialized equipment. Uneven lifting cracks slabs. Self-leveling compound is a different product for smoothing interior floors, not for raising a sunken slab.

Can you level concrete with spray foam insulation?

No. Lifting foam is a separate, hydrophobic, high-density formulation injected under the slab through small holes; ArmorFoam Lift 200 is 2.5 lb per cubic foot and Lift 300 is 3.75. Insulation foam and canned foam aren't designed to carry a slab, and a hardware-store can won't produce a controlled lift.

Does homeowners insurance cover concrete leveling?

Usually not. Angi notes most homeowners pay out of pocket, though settlement caused by a covered sudden event can occasionally qualify. Ask your insurer before assuming coverage, and document the cause.

How soon can I drive on leveled concrete?

With polyurethane foam, quickly: ArmorFoam Lift is rated for driving on within 30 minutes or less, and published figures put foam cure at about 15 minutes to an hour. Mudjacking slurry needs 24–48 hours, and a replaced slab needs days to weeks before it takes vehicle traffic.

Does concrete leveling fix cracks?

No. Lifting closes the height difference, but existing cracks and joints still need sealing, and most quotes don't include it (The Concrete Hero). Budget $100–$800 per crack on published figures, and ask for joints to be sealed so water can't wash out the base again. See our guide to polyurea concrete crack injection.

AT
ArmorThane Technical Team · Springfield, Missouri
Written from published 2025–2026 cost guides, manufacturer data and 35+ years of making polyurethane systems and supporting applicators. Last updated September 26, 2026.

Methodology and sources

Price bands are our synthesis of eleven published leveling cost pages, most dated 2025–2026: the median of the low and high ends for mudjacking, HomeAdvisor's size-stated examples for foam, and HomeGuide for stone slurry. Replacement is the median of four published figures. Lifespans are what cost guides publish, not measured service lives. Foam volumes, slab weights and cost per year are our calculations. We update the bands each January.

  1. HomeAdvisor, level concrete slabs cost (Jun. 2026): homeadvisor.com/cost/foundations/level-concrete-slabs/
  2. Angi, concrete leveling cost (Jul. 2026): angi.com/articles/concrete-leveling-cost-effective-alternative.htm
  3. Angi, mudjacking cost (Aug. 2026): angi.com/articles/how-much-does-mudjacking-cost.htm
  4. HomeGuide, concrete leveling cost (Nov. 2025): homeguide.com/costs/concrete-leveling-cost
  5. HomeGuide, mudjacking cost (Nov. 2025): homeguide.com/costs/mudjacking-cost
  6. HomeGuide, polyjacking cost (Nov. 2025): homeguide.com/costs/polyjacking-cost
  7. HomeGuide, concrete driveway cost (Jun. 2025): homeguide.com/costs/concrete-driveway-cost
  8. HomeGuide, concrete slab cost (Feb. 2026): homeguide.com/costs/concrete-slab-cost
  9. HomeGuide, concrete removal cost (May 2025): homeguide.com/costs/concrete-removal-cost
  10. A-1 Concrete Leveling, concrete leveling costs (Mar. 2026): a1concrete.com/concrete-repair-learning-center/concrete-leveling-costs
  11. The Concrete Hero, average cost to raise and level concrete (Feb. 2025): theconcretehero.com/average-cost-to-raise-and-level-concrete/
  12. Northland Companies, concrete lifting cost (Sep. 2025): northland-companies.com/how-much-does-concrete-lifting-cost/
  13. Raise-Rite, concrete raising cost (updated Oct. 2025): raise-rite.com/blog/how-much-does-concrete-raising-cost/
  14. Fixr, concrete leveling cost (Jan. 2025): fixr.com/costs/concrete-leveling
  15. Groundworks, what is mudjacking (Aug. 2026): groundworks.com/resources/what-is-mudjacking/
  16. U.S. Access Board, ADA guide chapter 3: changes in level: access-board.gov/ada/guides/chapter-3-floor-and-ground-surfaces/
  17. NCFI, dual-component geotechnical foams (density and compressive strength): ncfi.com/geotechnical-products/dual-component-systems
  18. Engineering ToolBox, concrete properties (density): engineeringtoolbox.com/concrete-properties-d_1223.html
  19. ArmorThane, ArmorFoam Lift 200: armorthane.com/products/armorfoam-products/lift-200/
  20. ArmorThane, ArmorFoam Lift 300: armorthane.com/products/armorfoam-products/lift-300/
  21. ArmorThane, foam concrete lifting: armorthane.com/protective-coatings/foam-concrete-lifting/

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Lift it once, and fix why it sank.

ArmorThane-certified applicators lift slabs with ArmorFoam Lift polyurethane, seal the joints and put the price in writing. Contractors: we make the lifting foam and the spray equipment and train your crew, with no franchise fee and no royalties.

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