Lifting a sunken concrete slab with polyurethane foam costs about $2 to $6 per square foot in New Jersey, so most driveway aprons, front walks and patio jobs land between $695 and $2,500 and you can drive or walk on it the same afternoon. Tearing out and repouring the same slab costs three to five times that and ties up your driveway for a week. We do the lift — and we tell you when a slab is too far gone to be worth lifting.
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Lifting a sunken concrete slab with polyurethane foam costs about $2 to $6 per square foot in New Jersey, so most driveway aprons, front walks and patio jobs land between $695 and $2,500 and you can drive or walk on it the same afternoon. Typical price: $695 – $4.5K. Licensed & insured, written itemized price before work starts, no deposit, one dedicated crew. Serving all 21 New Jersey counties from Paramus. Call (201) 676-3099 or book a free estimate.
We measure the drop with a level and a string line and figure out where the base is missing, not just where the slab is low.
We drill 5/8-inch holes — about the diameter of a pencil — in a pattern across the slab. Compare that to the 2-inch holes old mudjacking needed.
A two-part polyurethane is injected through a port. It expands under the slab, fills the void first, then starts to lift.
We raise in small increments, watching the slab with a level, so it comes up level instead of cracking. The foam is hard enough to drive on in about 15 minutes.
Holes patched with color-matched grout, joints and cracks sealed so water stops going back under the slab.
Downspout extended, grading corrected, or a drain added. Lifting a slab without fixing where the water goes just buys you a few years.
| Option | Typical NJ cost | Back in use | When it makes sense |
|---|---|---|---|
| Polyurethane foam lifting | $2–$6 per sq ft (most jobs $695–$2,500) | Same day, about 15 minutes after the lift | Slab is sound but sitting low; voids underneath; you want your driveway back today |
| Mudjacking (sand/cement slurry) | $1.50–$4 per sq ft | 24–48 hours | Large open areas where 2-inch holes and added weight don't matter. We rarely recommend it — the slurry is heavy and it washes out |
| Grinding the trip edge | $495 minimum visit | Immediately | One raised sidewalk lip, township violation notice, nothing structurally wrong |
| Tear out and repour | $9–$20 per sq ft | 5–10 days including cure | Slab is cracked into more than a few pieces, spalled, crumbling, or was never thick enough |
Almost every sunken slab we lift in New Jersey has water behind it. A downspout emptying two feet from the apron. A grade that runs toward the house instead of away. A patio that sheds into the corner it sits in.
We fix that in the same visit whenever we can — extend the downspout, add an underground line to daylight or a dry well, re-grade the strip beside the slab. It's usually a few hundred dollars, and it's the difference between a lift that lasts and one you're calling about in three years. If you'd rather skip it, we'll say so on the quote so nobody's surprised later.
Paramus-based, lifting concrete across all 21 New Jersey counties — driveways, walks, patios, pool decks, garage floors and steps. Text a photo with something for scale next to the low spot and we'll give you a straight answer on whether it's a lift or a replace. Photos go to (201) 676-3099 or info@firstcallcontractingnj.com, whichever is easier for you.
typical fixed-price range — your exact number goes in writing after a free visit
How we beat the big chains: The national lifting brands run a commissioned rep with a tablet, a lifetime-warranty pitch and a price built around the franchise fee. Same foam, same rig, same afternoon — ours just doesn't have to pay for the ad campaign. No franchise fees, no commissioned salesmen, no rented subcontractors — that's typically 15–30% under national-brand quotes for the same or better spec. Bring us any written quote and we'll match the scope line by line.
“They lifted my driveway and never touched the downspout washing the dirt out. Two winters later it was back down.”
“The guy drilled holes the size of golf balls and the patches look terrible.”
“They lifted it too fast and cracked my patio in half.”
You found a crew that is actually near you. First Call Contracting is based in Paramus, in Bergen County, and our own licensed techs handle concrete leveling in all 21 New Jersey counties — no call center, no subcontractor sent from two states away. Most of Bergen, Passaic, Hudson and Essex is 15 to 30 minutes from our shop, and emergencies go to the nearest crew, 24/7.
Closest to us: Bergen CountyPassaic CountyHudson CountyEssex CountyMorris CountyUnion CountyAll 21 counties & 219+ towns →
Call (201) 676-3099, text us a photo, or book a free in-home estimate — you get a written price before any work starts.
Figure $2 to $6 per square foot of slab, with most residential jobs — a garage apron, a front walk, a section of patio — landing between $695 and $2,500. Big driveways or pool decks with deep voids run higher. You get an itemized written price before anyone drills a hole.
Most jobs are two to four hours start to finish. The foam reaches full strength in about 15 minutes, so you can walk on a sidewalk immediately and put a car on a driveway the same afternoon. No cure time, no week of orange cones.
The foam itself is inert, waterproof and doesn't wash out or break down, so it holds indefinitely. What isn't permanent is the soil around it. If water keeps undermining the area — an open downspout, bad grading, a leaking line — the ground beside the foam can keep moving. That's why we fix the drainage in the same visit.
Foam, in almost every case here. It goes in through pencil-sized holes instead of 2-inch ones, weighs a fraction of what a sand-cement slurry weighs (so it doesn't press down on the same soft soil that caused the problem), cures in minutes and doesn't wash out. Mudjacking is cheaper per foot and we'll quote it for large open slabs if you want it.
Usually not — you're not changing the structure, the grade or the drainage pattern. If we're also pouring new concrete, adding a drain line or working in the township right-of-way on a public sidewalk, that can need a permit or a sidewalk opening approval, and we handle it.
Yes. Polyurethane cures fine in the cold and we lift through most New Jersey winters. What we won't do is lift a slab that's frozen to the ground or has ice in the voids underneath — the reading you get is false and the slab drops again at thaw. If the ground is frozen solid we'll tell you to wait.
If you're anywhere in New Jersey, yes. First Call Contracting is based in Paramus and handles concrete leveling across all 21 counties with our own licensed crew. Most of Bergen, Passaic, Hudson and Essex is 15 to 30 minutes from our shop, and emergencies are dispatched to the nearest crew 24/7. Call (201) 676-3099 or book a free in-home estimate.
Pencil-sized holes · drive on it in 15 minutes · drainage fixed too
Or call Alex direct: (201) 676-3099
A real person picks up every hour of every day. We tell you what to shut off first, then send the nearest crew.