How to Repair Cracks in a Concrete Driveway
Cracks in concrete driveways are common, but they should not be ignored. Left untreated, they can lead to larger structural issues, water infiltration, and reduced curb appeal. This step-by-step guide explains how to repair cracks in a concrete driveway, from diagnosing the cause to sealing the finished repair. Whether you’re handling it yourself or hiring a professional, this post provides a comprehensive breakdown of the process and related queries.
Why Concrete Driveways Crack
Understanding why cracks form helps you address the root issue and prevent future damage. The most common causes include:
- Freeze-thaw cycles causing expansion and contraction
- Poor subgrade preparation or shifting soil
- Heavy loads or traffic exceeding design capacity
- Tree roots or ground heaving
- Lack of proper control joints
Tools and Materials Needed
Before starting your repair, gather the following materials and tools:
Materials
- Concrete crack filler (latex, epoxy, or polyurethane)
- Concrete bonding adhesive (for larger cracks)
- Concrete patching compound (for wider or deeper cracks)
- Driveway sealant
Tools
- Wire brush or grinder
- Pressure washer or garden hose
- Trowel or putty knife
- Caulking gun (if using cartridge filler)
Step-by-Step Crack Repair Process
1. Clean the Crack
Use a wire brush to remove loose concrete and debris. Then wash the area thoroughly with a pressure washer or hose. Let it dry completely before proceeding.
2. Shape the Crack (Optional)
For wider or deep cracks, chisel them into an inverted “V” shape to improve bonding. This step enhances the durability of the repair.
3. Apply Bonding Adhesive
Apply concrete bonding adhesive inside the crack if you’re using patching compound. This helps the new material adhere securely to the old surface.
4. Fill the Crack
Use a crack filler for small cracks, and a patching compound for larger or uneven cracks. Smooth with a trowel and follow curing time as recommended on the product label.
5. Seal the Surface
After the repair has cured, apply a driveway sealer to protect the surface from moisture, oil stains, and freeze-thaw cycles.
Repair vs. Resurfacing
| Condition | Recommended Action |
| Isolated small cracks | Crack repair |
| Widespread surface damage | Resurfacing |
| Deep structural or foundation cracks | Replacement |
How to Prevent Future Cracks
- Seal the driveway every two to three years
- Avoid parking heavy vehicles in the same spot
- Install proper drainage systems to redirect water
- Keep large trees away from driveway edges
- Ensure control joints are in place during installation
For extensive or recurring damage, trust our team for professional concrete driveway crack repair in Sacramento that stands the test of time.
Cost of Repairing Driveway Cracks
| Type of Repair | DIY Cost | Professional Cost |
| Crack filler | $15–$40 | N/A |
| Patch and seal | $50–$100 | $200–$500 |
| Resurfacing (professional) | N/A | $3–$7 per sq. ft. |
Frequently Asked Questions
Can I use asphalt crack filler on concrete?
No. Asphalt and concrete have different chemical properties. Use a filler specifically designed for concrete.
What’s the best time to repair cracks?
Spring and fall are ideal due to moderate temperatures and lower moisture levels.
Can I pour new concrete over cracked concrete?
Yes, but only if the base is stable and not shifting. Otherwise, the new layer may crack too.
How long do repaired cracks last?
With proper sealing and base stability, repaired cracks can last 5–10 years or more.
Final Thoughts
Repairing cracks in your concrete driveway is a manageable task that can extend the life of your pavement, improve appearance, and prevent costly problems. Whether handled as a DIY project or by a professional, understanding the repair process ensures better long-term results.
