How To Fix Cracks In Concrete Patio

concrete patio crack

A concrete patio is a valuable addition to any home, providing a durable and versatile outdoor space for relaxation and entertainment. However, over time, cracks may develop due to various factors such as weather conditions, soil movement, or improper installation. These cracks can not only be unsightly but also pose a safety risk if left untreated.

So how to fix cracks in concrete patio? Read more as we will discuss effective methods to repair cracks in your concrete patio, ensuring its longevity and aesthetic appeal in today’s post.


  1. Assess The Damage

fixing crack patio

Before embarking on any repair work, it is essential to evaluate the extent and nature of the cracks in your concrete patio. Different types of cracks require specific repair methods. Here are the common crack types:

  • Hairline cracks: Thin, shallow cracks that do not pose significant structural concerns.
  • Structural cracks: Wide, deep cracks that indicate underlying issues and require professional intervention.
  • Expansion cracks: Cracks caused by temperature fluctuations or concrete expansion/contraction.

By identifying the type and severity of the cracks, you can determine the most appropriate repair approach.

  1. Gather The Necessary Tools And Materials

To effectively fix cracks in your concrete patio, you will need the following tools and materials:

  • Protective gear (gloves, safety glasses, mask)
  • Wire Brush
  • Chisel
  • Hammer
  • Concrete Crack Filler
  • Concrete Patching Compound
  • Trowel
  • Concrete Sealer
  • Paintbrush
  • Pressure Washer (Optional)

Ensure you have these items readily available before starting the repair process.

  1. Clean And Prepare The Crack

Before proceeding with any repairs, it is crucial to thoroughly clean the crack to remove debris and loose concrete particles. Use a wire brush or a pressure washer to clean the crack and its surrounding area. This step ensures proper adhesion and helps the repair material penetrate effectively.

  1. Fill Hairline Cracks With Crack Filler

For hairline cracks, applying a specialized concrete crack filler is often sufficient to repair the damage. Follow these steps:

  • Cut the tip of the crack filler tube at a 45-degree angle and insert it into a caulk gun.
  • Squeeze the filler into the crack, starting from one end to the other, ensuring it reaches the bottom.
  • Smooth the surface with a putty knife or trowel.
  • Allow the crack filler to dry as per the manufacturer’s instructions.
  1. Repair Structural Or Wide Cracks

Structural or wide cracks require a more comprehensive repair process. Here’s how to fix them:

  • Start by widening the crack using a chisel and hammer. Create a V-shaped groove that is wider at the base and tapers towards the surface.

Pro Tip: Clean out any loose debris from the groove using a wire brush.

  • Moisten the crack with water. This helps promote better adhesion between the old and new concrete.
  • Mix the concrete patching compound according to the manufacturer’s instructions.
  • Apply a layer of bonding agent to the crack using a paintbrush. This enhances the bond between the existing concrete and the patching material.
  • Fill the crack with the patching compound, ensuring it is slightly overfilled to account for shrinkage.
  • Smooth the surface using a trowel or a putty knife, blending the repair material with the surrounding concrete.
  • Allow the patch to cure as per the manufacturer’s instructions. This typically takes a few hours or overnight.
  • Once cured, apply a concrete sealer to protect the repaired area from moisture and further damage. Follow the sealer manufacturer’s instructions for application.
  1. Prevent Future Cracks

To prevent future cracks in your concrete patio, consider the following preventive measures:

  • Install expansion joints to allow for concrete expansion and contraction.
  • Ensure proper drainage to prevent water accumulation.
  • Avoid using de-icing chemicals during winter.
  • Regularly inspect and maintain your patio, addressing any minor cracks promptly.


Having A Professional Help You If You don’t Know How To Fix Cracks In Concrete Patio Properly

If you are unsure of how to properly fix cracks in your concrete patio, it is best to seek the assistance of a professional. They can accurately assess the damage and identify the necessary repair work and materials for lasting results. With professional help, you can ensure that your concrete patio is restored to its original beauty and structural integrity.

Additionally, if your concrete patio is worn or damaged beyond repair, a professional can help you decide if it needs to be replaced. They can also provide guidance and ideas for creating an updated look that complements your outdoor space.

We recommend you to contact Pennsy Paving & Concrete today as they are the leading specialists in concrete repair and replacement. Call them today for more information on how to fix cracks in your concrete patio!



Repairing cracks in your concrete patio is crucial to maintain its structural integrity and aesthetic appeal. By following the steps outlined in this article, you can effectively fix cracks of varying sizes and types. Remember to take preventive measures to minimize the likelihood of future cracks and ask a professional if you can do it by yourself.

With proper care and maintenance, your patio will continue to provide a beautiful and functional outdoor space for years to come.

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