How To Repair Cracked Concrete Patio?


Cracks in your patio, driveway, or another concrete surface may frequently be fixed. Concrete crack repair may be a straightforward do-it-yourself effort in certain situations; a professional concrete contractor may be needed in others to fix the damage. House Repair and Care is one of the best dealers to fix your place at an economical price. Get amazing services and 24/7 customer care. With our team of professionals, we can fix all the cracks in your patio or driveway.

Types Of Cracks Which Could Appear In Your Patio

Four basic types of cracks can occur in the concrete of your patio.

Hairline Crack

Hairline cracks are a type of crack that occurs near the surface of a concrete structure. They are typically very thin and can easily be missed with the eye in most cases, but they can become serious if neglected and left to grow wider. These cracks often form as temperatures change or when moisture gets into the slab and causes it to expand and contract.

Shrinkage Cracks

Shrinkage cracks are one of the most common forms of concrete cracking, and they arise during the curing process. This is when the concrete slab has begun to harden, but some moisture still needs to evaporate. As the moisture evaporates, it causes the concrete to shrink slightly, resulting in small surface cracks.

Settlement Cracks

Settlement Cracks are a common form of concrete cracking caused by the soil underneath the concrete slab. When the concrete is poured, it should be placed on tightly packed soil to ensure that it does not shift or sink over time. If there is any weakness in the soil beneath the slab, then it can cause the slab to shift and settle, resulting in settlement cracks.

Structural Crack

Structural Cracks are the most severe of all concrete cracks, as they indicate a structural failure. These structural cracks can occur due to overloading, poor design, or material failure. They can also be caused by thermal expansion and contraction of concrete in extreme climates, freeze-thaw cycles, lack of support, or even natural disasters. Structural cracks can be extremely serious and may require professional repair to ensure the safety of your concrete structure.

How Are Cracks Developed In Concrete Patios?

Whether you are dealing with a small hairline crack in your patio or a large structural crack, the underlying cause of the damage is usually the same. Cracks typically develop due to physical stresses on the structure, including weight from people and heavy objects, changes in temperature, freeze-thaw cycles, or poor soil conditions underneath the slab. Some of the reasons for concrete cracks are as follows,


Shrinkage is the most frequent factor that might result in a fracture in concrete or a patio. When the concrete hardens and cures, it undergoes a shrinking process. This shrinkage occurs when some moisture evaporates from the concrete, causing it to contract and form hairline cracks on its surface.

Expansion And Contraction Of The Surface

It’s crucial to understand that concrete will expand and contract with the seasons if you live in a cold area since this can also result in cracks in the patio. Thermal expansion and contraction occur when concrete is exposed to extreme changes in temperature. While concrete can tolerate some temperature fluctuations without cracking, large swings in temperature, like freeze-thaw cycles and natural disasters like earthquakes, can cause the concrete to expand or contract and lead to cracks in the surface.

Control Joints Cracking

Control joints are an important part of a concrete patio or any other concrete surface to prevent cracking. These joints are cut into the fresh concrete existing slab, allowing for the slab’s natural expansion and contraction due to environmental conditions such as extreme temperature changes. Control joints also help reduce the risk of additional cracks forming due to structural movement or settlement.

Poor Construction Techniques

If poor construction techniques are used, then this can also lead to cracks in an existing concrete patio. This includes using inappropriate materials for the job, loose concrete, not designing or building a suitable foundation for the structure, not applying water-repellent chemicals before laying down the patio, and other similar errors.

Heavy Foot Traffic Or Improper Weight

Suppose too much weight is placed on a small area of the patio. In that case, this can lead to cracking and surface deterioration over time. This type of damage is known as “spalling,” when a concentrated load is placed in one spot and not distributed evenly across the entire slab. Spalling can occur due to heavy foot traffic., large pieces of furniture, or even heavy construction equipment.

Tools & Materials You’ll Need To Repair Cracked Concrete Patio

If you think of removing the crack and repairing the home, you may need the respective tools.

  • Hammer
  • Wire brush
  • Heavy-duty flat mason’s chisel
  • Funnel
  • Safety glasses
  • Putty knife
  • Shop vacuum
  • Utility knife
  • Caulking gun
  • Polymer-based concrete slabs crack filler
  • Hearing protection
  • Solid crack filler
  • Sand
  • Scrap piece of cardboard

Steps To Repair Cracked Concrete Patio

You should be aware that there isn’t a single solution to repair patio cracks. Even if you can do everything independently, we advise hiring a specialist for high-quality concrete repair.

Step 1: Enlarge The Crack

Widening the fracture and forming a V-shape is a critical step in the repair of concrete patios, as it will improve the adhesion of the repair materials. This can be accomplished with a hammer and heavy-duty flat mason’s chisel. The idea behind this strategy is to create a crack that has a width-to-depth ratio of approximately 1:2.

Step 2: Brush The Crack

After removing any last bits of debris from the crack with the wire brush, it is important to ensure that no remaining dirt, dust, or other loose particles are present. To do this, use a shop vacuum to thoroughly vacuum the entire area around and within the crack. Next, use a funnel to fill the crack with a polymer-based concrete mix or crack filler, working slowly to ensure that it is evenly distributed.

Step 3: Pour In The Solid Crack Filler

Analyze the crack’s depth. Fill in the appropriate parts to bring the crack up to a depth of 1/4 inch if it is deeper. Deep regions should be filled with something other than liquid crack filler since doing so increases project costs, curing time, and the risk of sinking filler.

Step 4: Apply The Concrete Crack Filler

Using a putty knife and a caulk gun, force a bead of the concrete crack filler into the crack. Move slowly and carefully along the crack, ensuring that the filler is firmly embedded in the surface of the concrete patio. To ensure an even spread of filler, use sand or a closed-cell backer rod to fill any deeper crevices.

Step 5: Make The Filler Flat

Once the filler has been embedded into the crack of the concrete patio, it is important to ensure that it is evenly spread and flat. To do this, use a putty knife to drag across the surface of the filler. This will help to even out high sections, so they are level with the rest of the filler to prevent future cracking.

Step 6: Let It Cure!

It is important to give the patch material or paint used on the concrete patio a minimum of 24 hours to cure before using it. This curing time allows the materials to become hardened and fully adhere to the surface, ensuring they won’t easily crack or wear away over time.

Explore The Best Patio Repair Services With House Repair and Cares!’

If your concrete patio has cracks, don’t fret! with the right tools and techniques, you can easily repair a cracked concrete patio. However, if the cracks are worst, House Repair and Care is an established home repair, remodeling, and handyperson service that can handle any home project you may have. We offer a satisfaction guarantee on all our artistry and take care of your home repairs.

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