Concrete Leveling in Montgomery

Concrete leveling in Montgomery runs $500–$2,500 for most residential slabs, against three to five times that for replacement. Polyurethane foam is injected through penny-sized ports, lifts the slab back to grade, and cures in minutes — usually same-day traffic.

Here's why Montgomery slabs drop, and when lifting is the right call.

Why slabs sink around Montgomery houses

Flatwork — driveways, patios, walkways, porch slabs — sits directly on soil with no footing between. On Black Belt clay that means it rides the full seasonal cycle: rising slightly as winter clay swells, dropping as August pulls the moisture out. Add the trench-and-fill zones around every foundation, where builder backfill consolidates for years after construction, and you get the two signature patterns here: driveway panels that step down at the joints, and patio or porch slabs that tilt back toward the house.

That tilt matters beyond appearance. A patio pitched toward the foundation delivers every rainfall directly to the wall — feeding the same moisture cycle that damages the structure. Leveling it corrects drainage and appearance in the same visit.

How the lift works

Ports the size of a penny are drilled through the slab. Structural polyurethane is injected beneath, expanding to fill voids and raise the concrete in controlled increments while elevation is checked against a level line. Ports are patched flush at completion. The foam is inert, doesn't wash out, and weighs a small fraction of the mudjacking slurry it replaced — which matters on soil that already demonstrated it moves under load.

Timing on expansive clay

Slabs that heave and drop seasonally get lifted after the ground has finished its dry-season contraction, not in the middle of it. Lifting a slab that the clay is still actively moving is paying to do the job twice, and we'll schedule around it rather than take the money early.

Leveling questions, straight answers

How long does concrete leveling take?

Most residential slabs are lifted in a single afternoon. Polyurethane foam is injected through penny-sized ports, expands to fill the void and raise the slab, and cures within minutes — you can typically drive on a lifted driveway the same day. Larger or multi-panel jobs may run a full day.

Is foam better than mudjacking here?

On Black Belt clay, generally yes. Mudjacking pumps a heavy slurry beneath a slab that already failed under load; polyurethane weighs a fraction of that and doesn't add to the burden on soil that's cycling. Foam ports are also far smaller, so the patches are less visible.

Will the slab sink again?

Not if the reason it sank is addressed. Foam fixes elevation; it does not fix a downspout saturating the base or clay that's still shrinking beneath it. Our slab scopes name the water source next to the lift price, with the cheap correction first, because that's what decides whether you buy this once.

Can you level a slab that's cracked in pieces?

Sometimes. Slabs broken into several pieces can often be lifted panel by panel, though the cracks remain visible and may need sealing. Where concrete is severely deteriorated or the pieces no longer interlock, replacement is the honest recommendation — and we'll say so rather than take the lifting job.