Concrete Leveling in Albuquerque, NM & the Metro

Concrete Leveling, done for high-desert conditions

When a section of sidewalk, patio, driveway or porch has dropped but is still in one piece, it can often be lifted back into position instead of replaced. Concrete leveling, also called slabjacking, works by drilling small holes through the slab and injecting material underneath to fill the void and raise the concrete. Done well, it restores drainage, removes trip hazards and saves the slab you already have, usually with far less disruption than demolition.

There are two main methods. Polyurethane foam lifting injects an expanding, lightweight foam through holes roughly the size of a coin; it cures quickly, adds very little weight to soils that are already struggling, and lets traffic return within a short time. Mudjacking pumps a cement-and-soil slurry through larger holes; it is a long-established method, but the material is heavy and can add load to weak soils. We will explain which fits your slab, and when neither is a good idea, such as when the concrete is badly broken or the soil is still actively moving.

In this area, sunken concrete very often traces back to water. Collapsible sandy and silty soils can settle suddenly the first time they are soaked, and the usual source is irrigation along a slab edge or a downspout that discharges right beside the concrete. Lifting the slab without fixing that water source is a temporary repair. Part of every leveling job is finding out why the slab dropped and recommending the drainage or irrigation changes that will keep it from happening again.

Signs you need concrete leveling

Trip hazards at joints
A sidewalk or patio section that sits half an inch or more lower than its neighbor is a common trip hazard and a liability for homeowners, HOAs and businesses.
Patio or walk sloping toward the house
When a slab settles and tips back toward the foundation, rainwater and irrigation runoff drain toward the house instead of away from it, which can make soil problems at the foundation worse.
Driveway dropped at the garage
A gap or step where the driveway meets the garage floor is a classic sign of settlement in the soil just outside the garage, often near a downspout.
Hollow sound or rocking slab
If a section sounds hollow when tapped or rocks underfoot, there is likely a void underneath. Filling it early can prevent the slab from cracking under load.
Sunken steps or stoop
Entry steps and stoops that have pulled away from the house or tipped can often be lifted and stabilized rather than rebuilt.

Our concrete leveling process

01
Assess the settlement and the cause
We measure how far each section has dropped, check for cracking that would limit lifting, and look for the water source behind the settlement: downspouts, sprinklers, drip lines, ponding or a leaking line.
02
Plan injection points and method
Based on the slab size, thickness and soil, we choose polyurethane foam or mudjacking and lay out a drill pattern. The goal is to lift evenly and fill voids completely without cracking the slab or lifting it past the target.
03
Drill and inject
Small holes are drilled through the slab, and material is injected in controlled stages while we monitor the lift with levels or string lines. Adjacent slabs are watched so they do not get pushed out of alignment.
04
Patch holes and seal joints
Injection holes are patched with a cementitious material, and the joints and cracks between lifted sections are sealed so surface water does not go right back under the slab.
05
Fix the water source
We recommend or make drainage corrections: downspout extensions, redirecting sprinklers, regrading soil along slab edges. This step is what makes the lift last.

Materials & techniques

Polyurethane foam lifting

A two-part polyurethane foam injected through small holes expands to fill voids and lift the slab. It is lightweight, cures quickly and is resistant to water, which makes it well suited to soils that are already weak. Different foam densities are chosen for sidewalks versus driveways.

Mudjacking slurry

A cementitious slurry of soil or sand, cement and water pumped under the slab. It is a proven, economical approach for some situations, but the larger holes and heavier material make it less suitable over collapsible or very soft soils.

Void filling without lift

Sometimes a slab is still level but has a void beneath it from erosion or settlement. Injecting material to fill the void without lifting restores support and prevents future cracking.

Joint and crack sealant

Flexible sealant in joints and cracks after leveling keeps surface water from getting back under the slab. UV-resistant products are important here because sealants degrade quickly in strong sun.

Built for Albuquerque soils and weather

Monsoon storms and winter freeze-thaw both drive water into joints and cracks, and in a dry region the sudden wetting of soils is what triggers most settlement. Sealing joints after a lift and keeping runoff off slab edges is essential, and sealants should be UV-resistant because intense sun breaks them down quickly.

Caliche hardpan

Caliche can perch water just beneath a slab, softening the thin layer of soil above it and creating voids that leveling has to fill. We locate those voids carefully and recommend drainage fixes so water stops collecting on top of the hardpan.

Expansive clay

Leveling works on slabs that have sunk, not ones that have heaved, so clay that swells under part of a slab can rule out lifting or require a different plan. Where clay has shrunk and left a void, we can fill it, but we also advise on keeping moisture steady so the clay does not swing back.

Collapsible soil

Collapsible soil is the most common reason slabs drop here, usually after irrigation or roof runoff soaks soil that was dry and loose. Lightweight polyurethane foam is often the better choice because it adds little load to that weakened soil, and correcting the water source is part of the job.

Rio Grande valley alluvium

Soft valley-floor silts and higher groundwater can make settlement gradual and widespread. We use foam formulations that tolerate moisture, inject in more locations to spread the support, and watch for areas where irrigation or a nearby ditch keeps the soil saturated.

Foothill decomposed granite

On foothill lots, settlement is often from erosion: runoff washes decomposed granite out from under slab edges. We fill the voids and then recommend edge protection, swales or rock to keep monsoon runoff from undermining the slab again.

Permits

Leveling existing slabs on private property typically does not require a permit. Public sidewalks are a different matter, since they are often the responsibility of the jurisdiction or the adjacent owner under local rules, so confirm with your city, county or village before work on a public walk.

Typical timeline

Most residential leveling jobs are completed in a single day, often in a few hours, with light traffic returning quickly when foam is used; larger commercial areas or multiple slabs may take a few days.

Concrete Leveling by service area

Soil, elevation and permitting differ across the metro. See how concrete leveling is planned in each community.

Concrete Leveling FAQs

Is polyurethane foam better than mudjacking?

For most residential work here, foam has real advantages: smaller holes, much lighter weight on weak soils, faster cure and less mess. Mudjacking can still be a reasonable choice for some larger voids. We will explain the trade-offs for your specific slab rather than pushing one method.

How long does concrete leveling last?

It depends mostly on whether the cause of settlement is fixed. If the soil stops getting soaked by irrigation or roof runoff, a lifted slab can stay in place for many years. If the water source stays, the soil can keep settling and the slab may drop again.

Can every sunken slab be leveled?

No. Slabs broken into many pieces, badly deteriorated concrete, or slabs on soil that is still actively heaving or moving may be better replaced. Leveling also cannot fix a slab that has heaved upward from expansive clay. We will tell you if replacement is the more honest answer.

What affects the cost of concrete leveling?

Main factors are the size and number of sections, how far they have dropped, how large the voids are, which method is used and the amount of material it takes, and access to the work area. Drainage corrections are a separate item but often the most important part of the job.

Why did my sidewalk or patio sink in the first place?

Around here, the most common causes are collapsible soils that settle when wetted, poorly compacted fill placed during construction, and erosion from runoff. A downspout or sprinkler zone right next to the slab is the usual trigger, which is why we look at water first.

How soon can I use the slab after it is lifted?

With polyurethane foam, light use is often possible the same day once the foam has cured. Mudjacked slabs typically need a little longer for the slurry to firm up. We give you specific guidance before we leave.

Concrete Leveling in Albuquerque, NM