Concrete leveling cost calculator (foam vs mud)
Price a concrete leveling job both ways — polyurethane foam and traditional mudjacking — from the slab area and the two per-square-foot rates on your quotes, and see which method comes in cheaper.
Calculator
Leveling 200 sq ft: foam is $1,600.00 vs $1,000.00 mud-jacking. Foam is lighter and cures faster; mud-jacking is usually cheaper per sq ft.
Concrete leveling raises a sunken slab back to grade without replacing it. There are two common methods, and this calculator prices both so you can compare like for like. Mudjacking pumps a cement-and-soil slurry under the slab; polyurethane foam jacking injects an expanding structural foam. Both lift the same slab — the difference is weight, cure time and price.
Enter the area once and your two quoted rates, and the tool returns each method's total, highlights the cheaper one, and shows the difference. Because the only variable that differs is the price per square foot, the comparison is exact for your job.
Formula
Each method is area times its own rate; the cheaper total is highlighted:
foam = area × foam $/sq ftmud = area × mud $/sq ftdifference = | foam − mud |
Mud-jacking usually wins on price per square foot; foam usually wins on weight and cure speed. The tool does not assume a winner — it reports whichever your two rates make cheaper.
Worked example
A 200 sq ft patio is quoted at $8/sq ft for foam and $5/sq ft for mudjacking:
foam = 200 × $8 = $1,600mud = 200 × $5 = $1,000difference = $600
Mudjacking is $600 cheaper here. That gap is typical — but many homeowners still choose foam for a driveway or garage floor where its lighter weight and same-day cure matter more than the upfront saving.
Foam vs mud: what you are really trading
The price gap is only half the decision. Mudjacking uses a heavy cementitious slurry: it is proven, widely available and usually the lowest cost per square foot, but the added weight can matter on already-soft soils, and the injection holes are larger. Polyurethane foam is far lighter, cures in minutes so the slab is usable almost immediately, resists water washout and uses smaller injection holes — at a higher rate per square foot.
| Factor | Mudjacking | Polyurethane foam |
|---|---|---|
| Price per sq ft | Usually lower | Usually higher |
| Added weight | Heavier slurry | Very light |
| Cure time | Hours to a day | Minutes |
| Injection holes | Larger | Smaller |
Both methods only work on a slab that is sunken but structurally sound. A cracked or crumbling slab needs crack repair, resurfacing or replacement. For a method-only comparison without the highlight, see the foam-vs-mud compare.
Frequently asked questions
Is foam or mudjacking cheaper?
Mudjacking usually has the lower price per square foot, so it wins on upfront cost in most quotes. Foam costs more but is lighter and cures faster. Enter your two quoted rates and the calculator tells you which is cheaper for your specific job and by how much.
Why would I pay more for foam?
Foam is a fraction of the weight of a cement slurry, so it does not add load to soft soils; it cures in minutes so a driveway is drivable almost immediately; and it resists washout under wet conditions. On a heavy-use or fast-turnaround slab those benefits can outweigh the higher price.
Does concrete leveling last?
When the underlying soil issue is addressed, both methods can last for years. Foam is generally considered more durable in wet or unstable soils because it does not absorb water. Neither method fixes a slab that is failing structurally — that is a replacement question.
How do I measure the area to enter?
Measure the length and width of the sunken section in feet and multiply. Only count the area that actually needs lifting, not the whole driveway or patio. If your quote is by injection hole, divide the total by the lifted area to get an equivalent per-square-foot rate.
Is this an estimate or a bid?
A planning estimate from the numbers you enter — not a bid or a contract. Access, lift height and soil conditions all move the real price. Get itemized written quotes from licensed, insured contractors before you commit.