How to Fix Cracks in a Driveway

Having a cracked driveway can be a frustrating problem for homeowners. Cracks not only compromise the appearance of the driveway but can also lead to further damage if left untreated. However, with the right tools and techniques, you can easily fix cracks in a driveway and restore its functionality and curb appeal. In this article, we will guide you through the step-by-step process of repairing driveway cracks, from identifying the causes to applying effective solutions.

Cracks in a Driveway

Understanding the causes of driveway cracks

Before diving into the repair process, it is crucial to understand what causes driveway cracks in the first place. Cracks can occur due to various factors, such as:

  1. Freeze-thaw cycles: In colder climates, water can seep into the cracks, freeze, and expand, causing the cracks to widen.
  2. Settling of the ground: Shifting soil or inadequate compaction during the construction process can lead to cracks as the ground settles over time.
  3. Heavy loads: Continuous heavy vehicle traffic or parking heavy vehicles on the driveway can exert pressure and result in cracks.
  4. Aging and wear: Over time, the materials used in the driveway may deteriorate, leading to cracks.

Types of driveway cracks

Not all cracks are the same, and identifying the type of crack will help you determine the appropriate repair method. Here are the common types of driveway cracks:

  1. Hairline cracks: These are small cracks that are less than 1/8 inch wide and do not pose a significant threat to the driveway’s integrity.
  2. Alligator cracks: These are interconnected cracks that resemble the scales of an alligator’s skin. They indicate more extensive damage and require immediate attention.
  3. Potholes: Potholes are deeper and larger depressions in the driveway surface caused by the underlying structure being compromised.

Tools and materials needed

Before starting the repair process, gather the necessary tools and materials:

  • Safety gloves
  • Safety glasses
  • Wire brush
  • Chisel
  • Hammer
  • Crack filler or asphalt patch
  • Trowel or putty knife
  • Driveway sealer
  • Broom
  • Water hose or pressure washer

Preparing the cracked driveway

Proper preparation is essential to ensure a successful repair. Follow these steps to prepare the cracked driveway:

  1. Clean the area: Remove any loose debris, vegetation, or dirt from the cracks using a wire brush or broom.
  2. Inspect and widen the cracks: Use a chisel and hammer to widen hairline cracks, allowing the crack filler or patching material to adhere better.
  3. Remove loose materials: Use a broom or blower to clear away any loose debris or dust from the cracks and surrounding area.

Filling small cracks

For smaller cracks, follow these steps to effectively fill them:

  1. Apply crack filler: Squeeze the crack filler or pour the asphalt patch directly into the cracks, slightly overfilling them.
  2. Smooth the filler: Use a trowel or putty knife to smooth and level the filled cracks, ensuring they blend seamlessly with the surrounding surface.
  3. Allow drying: Let the filler cure according to the manufacturer’s instructions before proceeding with further repairs or sealing.

Repairing larger cracks

Larger cracks require additional steps to ensure a lasting repair:

  1. Clean and prime the cracks: Use a wire brush to clean the cracks thoroughly, then apply a primer to promote adhesion between the patching material and the existing driveway.
  2. Fill the cracks: Fill the cracks with a suitable crack filler or asphalt patch, ensuring it is slightly higher than the surface.
  3. Compact and level: Use a trowel or putty knife to compact and level the patching material, smoothing it evenly.
  4. Allow curing: Give the patching material ample time to cure before subjecting it to heavy traffic or sealing.

Resurfacing the driveway

In cases where the cracks are extensive or the driveway surface is severely damaged, resurfacing may be necessary:

  1. Clean and prepare the driveway: Thoroughly clean the driveway and repair any major cracks or potholes before resurfacing.
  2. Apply a bonding agent: Apply a bonding agent to the prepared surface to enhance adhesion between the existing driveway and the new layer.
  3. Spread the resurfacing material: Pour the resurfacing material onto the driveway and spread it evenly using a long-handled squeegee or a trowel.
  4. Smooth and level: Use a driveway broom or a squeegee to smooth and level the resurfacing material, creating a uniform surface.

Preventive measures

To avoid future cracks and prolong the lifespan of your driveway, consider implementing these preventive measures:

  1. Regular maintenance: Conduct routine inspections and address any minor cracks or issues promptly.
  2. Avoid heavy loads: Minimize parking heavy vehicles on the driveway or use additional support such as a plywood sheet under car jacks or RV stabilizers.
  3. Seal the driveway: Apply a high-quality driveway sealer every few years to protect the surface from water penetration and UV damage.


Repairing cracks in a driveway is a manageable task that can save you money in the long run. By understanding the causes of cracks, using the right tools and materials, and following proper repair techniques, you can restore your driveway’s integrity and enhance its visual appeal. Regular maintenance and preventive measures will help extend the lifespan of your driveway, keeping it in excellent condition for years to come.


  1. Can I repair driveway cracks in cold weather? Yes, you can repair driveway cracks in cold weather; however, make sure to use crack fillers specifically designed for cold temperatures.
  2. How often should I seal my driveway? It is generally recommended to seal your driveway every 2-4 years, depending on the climate and usage.
  3. Can I resurface a concrete driveway instead of patching cracks? Yes, resurfacing is a viable option for concrete driveways with multiple cracks or significant surface damage.
  4. What should I do if the crack keeps reappearing after repair? If cracks reappear after repair, it may indicate underlying structural issues. Consult a professional to assess and address the problem.
  5. Can I drive on the repaired driveway immediately? It is best to wait until the repair materials have fully cured before subjecting the driveway to heavy traffic or parking vehicles on it.

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