How to Repair a Cracked or Uneven Concrete Sidewalk
Concrete Sidewalks in Houston
A cracked or uneven concrete sidewalk is more than just an eyesore—it can be a serious tripping hazard. Whether caused by tree roots, soil shifting, or weather conditions, sidewalk damage can worsen over time if left untreated. Fortunately, there are several effective methods to repair concrete sidewalks and restore their durability and appearance.
Common Causes of Sidewalk Damage
Understanding why your sidewalk is cracking or becoming uneven can help you prevent future issues. Some common causes include:
- Soil Movement – Expanding and contracting soil due to moisture changes can cause slabs to shift.
- Tree Roots – Growing tree roots can push up sections of concrete, creating hazardous bumps.
- Freeze-Thaw Cycles – Water seeps into cracks, freezes, and expands, causing further damage.
- Heavy Loads – Excessive weight from vehicles or construction equipment can lead to cracking.
Step-by-Step Guide to Repairing Your Concrete Sidewalk
1. Cleaning the Area
Before making any repairs, clean the affected area by removing dirt, debris, and loose concrete. A pressure washer can help remove stubborn grime, ensuring a solid bond for repair materials.
2. Filling Small Cracks
For cracks less than ¼ inch wide, use a concrete crack filler or polyurethane sealant. Follow these steps:
- Ensure the crack is dry before applying the filler.
- Use a caulk gun to insert the sealant evenly along the crack.
- Smooth it out with a putty knife and let it cure according to the product instructions.
3. Repairing Large Cracks and Holes
If the crack is wider than ¼ inch or if there are chunks missing, a concrete patching compound is the best option:
- Mix the patching compound according to the instructions.
- Apply it with a trowel, pressing it firmly into the crack.
- Smooth the surface and let it dry completely before walking on it.
4. Leveling an Uneven Sidewalk
If a section of the sidewalk is raised or sunken, you may need to resurface or lift the slab. Options include:
- Concrete Resurfacing – A thin layer of resurfacer is applied to restore a smooth finish.
- Mudjacking (Slabjacking) – A mixture of cement, sand, and water is pumped under the slab to lift it back into place.
- Concrete Grinding – High spots can be ground down to create a level walking surface.
5. Sealing the Concrete
To protect your repaired sidewalk from future damage, apply a concrete sealer. This helps prevent water infiltration and extends the life of the repair.
When to Call a Professional
While minor cracks can be a DIY project, significant damage may require professional intervention. If your sidewalk has deep cracks, major shifts, or underlying soil issues, hiring an expert ensures a long-lasting and safe solution.
A well-maintained sidewalk enhances curb appeal and prevents accidents. Whether you’re filling small cracks or leveling large sections, proper repair techniques can restore your concrete walkway’s strength and appearance. If you need professional assistance, Ej & Jr Concrete in Houston, TX is here to help.
EJ & Jr Concrete is a family owned, all our work is guaranteed. No matter the size of your project, we are ready to do. Effective planning is crucial to the successful completion of any project. Before starting the project, our team of experts will first assess your goals. Then we provide you with an estimate and time-line for completion. From beginning to end you will be involved every step of the way 
call at +1 (832) 971-2322.
Call us at (832) 971-2322 
11603 BLAIR MEADOW DR, STAFFORD, TX 77477 or mail us 
Concrete Sidewalks in Houston
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