How To Fix Cracks In Concrete Patio

Cracks in a concrete patio can look uninviting but also provide a home for weed growth, collect debris and can be a tripping hazard. Shifting soil and freeze thaw events are some of the most common causes of cracks in concrete slab. Smaller cracks can grow bigger and wider. In some cases, one side of the crack rises higher than the other – this condition is called lippage. This can cause trips and falls. You can fix small cracks in concrete patios on your own – but if it grows bigger and severely cracked – there is no option left but to demolish and rebuild the structure from scratch.

Concrete cracks cannot be patched with concrete as it is rock pieces which are too large to fit. Instead, filling a half or quarter inch crack, you should use a polymer based filler that can be injected in the crack with a caulking gin and smooth it using the required tools. This is an easy and straightforward way to maintain the structural stability of your concrete patio over time without having to invest in high investment remodeling.

While the patch may still be noticeable to some degree, you can minimize this visual effect by using the filler closest to the color of your concrete. Surfacing or painting the patch or entire patio are two options for hiding the crack repair.

Unlike other forms of home interior options which are likely to thrive in controlled environments, concrete patios are subject to temperature changes and moisture which can hamper your repair. In order to choose the right patch materials, both air and concrete must be in the range of 50-90 Fahrenheit. The concrete should be completely dry and no precipitation should be forecast in the next 24 hours.

Equipments Needed

  • Hammer
  • Heavy duty flat mason chisel
  • Wire brush
  • Shop vacuum
  • Funnel
  • Safety glasses
  • Hearing protection
  • Putty knife
  • Utility knife
  • Caulking gun

Materials Needed

  • Polymer based concrete crack filler
  • Solid crack filler
  • Sand
  • Scrap cardboard piece

Steps Included To Repair Cracks In Concrete Patio

  • Widening the crack to create can hold the patch material stronger.
  • Next step is to clean out the crack using a wire brush to dislodge any dust or debris.
  • Fill the necessary sections with solid crack filler after assessing the depth of the crack.
  • Apply the concrete crack filler on top of it.
  • Flatten the recovered areas to get a smooth surface
  • Let the patch material sit and dry.

When To Call A Professional Help?

Wider cracks, missing or tiled concrete can require a professional mason to repair the area. This job requires demolishing the existing concrete and pouring fresh material. The cost of installing a new patch through professional help must be higher, but it is worth it for the stability it adds to your outdoor space.


Homeward Roofing & Exteriors extends its services for all kinds of concrete repairs in Tomball TX. If you suspect cracks in your concrete patio – call us at (832) 899-4420 for help!

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