How Do You Fix Sunken or Cracked Concrete Steps?

Business Apr 30, 2025 50 Add to Reading List

Let’s face it: No one wants to trip on their own front steps. ????
Cracked or sunken concrete steps aren’t just an eyesore—they’re a serious safety hazard.

If you’ve ever caught your foot on an uneven step or noticed a deep crack growing wider every month, this guide is for you. Whether you’re thinking “Can I fix this myself?” or “Do I need a pro?”, we’ll walk you through all your options—step by step. (Pun intended ????)

???? First, Why Do Concrete Steps Crack or Sink?

Concrete is strong—but not invincible. Over time, things like:

Shifting soil
Freeze-thaw cycles
Heavy rainfall
Poor drainage
Improper installation

...can all mess with your steps. Before you know it, they’re sinking, cracking, or even pulling away from your porch.

???? Quick Tip: If you see steps sinking more than ½ inch or cracks wider than a pencil, don’t wait. These problems only get worse (and more expensive).

???? Option 1: DIY Repairs for Small Cracks

Got hairline cracks? Good news: These are usually cosmetic and can be repaired without major work.

What you’ll need:

Concrete crack filler or patching compound
Wire brush or scraper
Caulk gun (if using sealant)
Trowel

Steps:

Clean the crack. Use a wire brush to get rid of dirt, loose concrete, or debris.
Apply filler. Squeeze it into the crack and smooth it with a trowel.
Let it cure. Follow the label—it usually takes 24–48 hours.
Seal it. For extra protection, apply a concrete sealer over the patch.

???? Note: These repairs are mostly for appearance. If your steps are sinking or the crack keeps growing… read on.

????️ Option 2: Fixing Sunken Steps (Don’t Skip This!)

Sunken steps are more serious. They usually mean the soil underneath has settled or eroded. That’s when you need to consider lifting the steps instead of just patching the surface.

You’ve got 3 main options:

???? A) Mudjacking (Traditional Lifting)

What it is: A contractor drills small holes in your steps and pumps a cement slurry underneath to lift them back into place.

Pros:

Cost-effective
Fast (done in a few hours)

Cons:

Holes are visible
Can settle again over time if not done properly

⚙️ B) Polyjacking (Foam Lifting)

What it is: Instead of cement, high-density polyurethane foam is injected under your steps. The foam expands and lifts the slab precisely.

Pros:

Clean process (tiny holes)
Lightweight and durable
Sets in 15–30 minutes

Cons:

Slightly more expensive
Needs a trained contractor

✅ Best for: Precise lifting with minimal disruption

????️ C) Rebuild or Replace

If your steps are badly cracked, sinking in multiple areas, or were built wrong from the start—replacement is often the safest route.

Rebuilding allows you to:

Fix drainage issues
Re-level the foundation
Upgrade to a better design or finish

???? And yes, we can help with that too.

???? Bonus: What If the Steps Are Pulling Away from the Porch?

This is common in older homes, especially after years of rain or poor soil prep.

Here’s the thing: If your steps are pulling away more than an inch, don’t try to “fill the gap” with caulk and hope for the best.

Instead:

Inspect the foundation under the steps
Check for drainage issues nearby
Consider slab lifting or reinstallation

???? This one’s definitely a job for professionals—especially if you’re seeing gaps, shifting, or unevenness.

???? When to Skip DIY and Call a Pro

Here’s how to know if it’s time to bring in concrete experts like Xcelent Concrete Services:

✅ Cracks wider than ¼ inch
✅ Visible sinking or step tilting
✅ Gaps between steps and porch
✅ Water pooling around the base
✅ Repaired cracks that keep coming back

Sometimes, it’s not just the steps—it’s what’s happening underneath. Our Concrete Contractors in Portland can check the structure, drainage, and stability, then offer the safest and most cost-effective solution.

???? After Repair: How to Keep Steps Looking New

Now that your steps are fixed—how do you keep them from cracking again? Easy:

Seal your concrete every 2–3 years to block out moisture.
Check drainage around your porch and steps. Water should flow away from your home.
Avoid heavy impacts, like dropping heavy pots or using metal shovels.
Clear snow and leaves in winter to prevent water damage.