Sinking slab foundation

Concrete Services

Sinking slab foundation

When your home’s main slab foundation begins to settle, it threatens the entire structure. We install heavy-duty foundation piers deep into stable soil to permanently stop the sinking and stabilize your home.

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What causes a slab foundation to sink?

Section diagram

Your home’s slab foundation relies entirely on the stability of the soil beneath it. When that soil changes, erodes, or compresses, thousands of pounds of concrete lose their support and gravity pulls the house down.

Simple cosmetic fixes like filling drywall cracks or patching concrete will fail repeatedly because the house is still moving. To fix your home permanently, we drive heavy-duty steel piers deep into stable bedrock to lift and lock your foundation in place.

Root causes 3 most common

During intense dry seasons, clay-heavy soils dry out, shrink, and pull away from underneath the slab, leaving massive voids that cause the foundation to drop.

Broken plumbing lines or poor exterior drainage route water underneath the home, washing away the load-bearing soil and triggering sudden settlement.

If the soil bed wasn't properly compacted and engineered before the concrete slab was poured during construction, it will naturally compress under the weight of the house years later.

Your symptom matched

These issues often share the same root cause — inspect them together

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Other structural signs
Uneven concrete slabs Sinking driveway, walkway, patio Cracked or sinking pool deck Void under slab Ugly concrete

What it looks like

Uneven concrete slabs

Self-diagnosis guide

Foundation settlement never stops on its own. Catching the signs early saves your home from catastrophic structural failure and massive repair bills.

Low urgency High urgency
Low urgency

Can wait a few weeks

Slight condensation on ducts or pipes only on humid days.
Mild damp smell after heavy rain.
No visible standing water or wood rot.
High urgency

Call us now

Standing water after heavy rain or plumbing leaks.
Visible mold, mildew, or severe wood rot on floor joists.
Foul odors traveling up to your living space, affecting air quality.

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FAQs

Sagging floors frequently asked questions

Find answers about our services and process

It depends on the cause. Foundation piers are a great solution for settling foundations in weaker soils, while cracks caused by sagging crawl spaces are fixed with support jacks. Our experts will identify the root cause and provide the right solution.

Helical deck piers are the best alternative to traditional poured concrete. Steel support brackets are stronger, the installation is minimally invasive, and you can build on them immediately after installation.

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home's foundation?

Free inspection · Same-week availability · Permanent encapsulation solutions.

or call 1-833-584-1049