View of sunken floor gap to baseboard with measuring tape to show floor drop

Is your concrete slab sinking?

Concrete doesn't sink on its own — the ground underneath it does. When soil erodes, washes out, or was never compacted properly to begin with, the slab above it loses support and settles unevenly. This shows up as:

A driveway or walkway with a noticeable dip or trip hazard

Pooling water on a patio slab that used to drain properly

A garage floor separating from the door threshold or house foundation

Uneven concrete steps or a sunken pool deck

Learn about foundation settlement symptoms
None of these are cosmetic issues you can safely ignore — a sinking slab next to your home's foundation is often an early sign of the same soil movement that eventually reaches the structure itself.

Concrete leveling methods: what are your options?

Not every "concrete leveling" company uses the same method, and the differences matter for how long the fix actually lasts.

Mudjacking (traditional slab jacking)

Mudjacking pumps a heavy slurry of mud, water, and cement underneath the slab to lift it. It's the older, more familiar method — and often the cheaper quote up front.

**The downside:** the mud mixture is extremely heavy (up to 100 lbs per cubic foot). If the soil underneath was too weak to hold the slab up in the first place, adding that much additional weight on top of it frequently causes the slab to sink again within a few years.

Resin /geopolymer injection (the Geobear method)

We drill small holes several feet through the slab and inject an engineered geopolymer resin directly into the soil beneath it. The resin quickly expands, filling voids and compacting the loose soil, then lifts the slab back to level as it expands. Multiple levels of injection are often done through the same injection point

**Why it holds up longer:** the material weighs a fraction of traditional mudjacking mud, so it doesn't add the same load back onto already-weak soil — it strengthens the soil instead of just covering the problem.

  Mudjacking Geobear Geopolymer Injection
Hole size ~2 inches ~5/8 inch
Material weight Heavy (up to 100 lbs/cubic ft) Lightweight, expanding geopolymer
Cure time Hours to days ~15 minutes to 90% strength
Long-term stability Risk of re-sinking on weak soil Compacts and strengthens the soil itself
Disruption Moderate Minimal — most jobs done same day

 

See our full foundation repair comparison
View of concrete slab lifting using Geobear resin injection

What can be concrete lifted?

Slab foundations
Garage floors and slabs
Patios and pool decks
Porch and entryway slabs
Warehouse and commercial slabs

See our commercial solutions offering

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Our process

How concrete lifting works

3D model showing Geobear clay shrinkage treatment installed

1

The treatment plan

Assessment

We inspect the affected slab and the surrounding soil conditions to confirm concrete lifting is the right fix — not every sunken slab has the same underlying cause.

2

Drilling

Site prep and drilling

Our technicians will scan for utilities, mark the drilling points, and drill small, dime-sized holes at the calculated points across the slabs.

3

Injection

Geopolymer treatment

We insert tubes into the drilled holes, this allows us to inject the geopolymer at the required levels according to the plan. Geopolymer resin is injected through the holes, expanding to fill voids and compact the soil beneath.

4

Precision control

Lifting and leveling

As the material expands, it lifts the slab back to level. We monitor elevation throughout to get it right.

5

Job done

Same-day use

The material reaches most of its strength in about 15 minutes — your home slab, driveway, or patio is typically usable the same day.

How much does concrete leveling cost?

Cost depends on the size of the slab, how much it has settled, and the depth of the void beneath it. In general, geopolymer injection costs are comparable to or less than mudjacking once you account for how often mudjacked slabs need to be redone — and significantly less than full slab replacement.

Every quote is free and no-obligation, based on an on-site assessment of your specific slab.
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FAQ

Frequently asked questions

Most residential concrete lifting jobs are completed in a few hours to one day, depending on the size and number of slabs involved.

The injection holes are small (about the size of a dime) and are typically patched to closely match the surrounding concrete.

Because the process compacts and strengthens the soil beneath the slab — rather than just adding weight on top of it — it addresses the underlying cause of settlement rather than temporarily masking it.

Yes — the injection process allows for targeted, localized lifting, so we can raise one corner or section of a slab without disturbing the rest.

In most cases, no. The process is designed to work around your normal use of the space wherever possible; our team will advise on any specific access needs during your free assessment.

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Ready to fix your sunken concrete?

Contact Geobear today for a free concrete leveling assessment. Serving homeowners across Southern California.

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