Patching a small spalled or chipped area of concrete means removing the loose, flaking material, cleaning the spot, and troweling in a concrete patching compound to rebuild the surface flush with the slab. Spalling — where the top layer flakes, pits, or chips away — is common on Houston driveways from moisture, de-icing salts tracked in during rare freezes, and a surface that was originally finished with too much water. As long as the damage is shallow and the slab underneath is sound, a bonding patch compound handles it. Deep spalling that exposes the aggregate over large areas is a resurfacing or replacement job.
What you'll need
- A hammer and chisel
- A wire brush
- A shop vacuum
- A margin trowel or putty knife
- A larger finishing trowel
- A bucket for mixing
- A garden hose
Recommended parts & supplies
- Concrete patching compound — a vinyl or polymer-modified patch for a strong bond
- Concrete bonding adhesive — brushed on first so the patch grips the old slab
- Margin / finishing trowel — to pack and smooth the patch
- Concrete driveway sealer — seal the cured patch and slab to prevent new spalling
As an Amazon Associate, GetHoustonLeads earns from qualifying purchases — at no extra cost to you. Links open on Amazon in a new tab; prices and availability are shown there.
Step by step
- 1
Remove all loose and flaking concrete
Use a hammer and chisel to knock away every bit of loose, crumbling, or hollow-sounding concrete around the spalled spot. Patch compound will not bond to failing material, so keep chipping until you reach solid, sound concrete on all sides and at the bottom. Tap around the edges — if it sounds hollow, it needs to come out too.
- 2
Clean the patch area completely
Scrub the area with a wire brush, then vacuum out all dust and debris. A clean, dust-free cavity is essential for the patch to grip. Rinse the spot with water and remove any standing water — most patch products bond best to a surface that is damp but not wet, so check your compound's directions.
- 3
Brush on a bonding adhesive
For a lasting repair on a shallow spall, brush a concrete bonding adhesive over the cleaned area. This glue-like coat dramatically improves how well the new patch sticks to the old concrete, which is often the difference between a patch that lasts years and one that pops loose in a season. Follow the product timing for applying the patch over it.
- 4
Mix and apply the patching compound
Mix the concrete patching compound to the consistency the label calls for — usually like thick peanut butter. Press it firmly into the cavity with a margin trowel, packing it into corners and against the edges so there are no voids or air pockets. Build it up slightly higher than the surrounding surface so you have material to trowel down flush.
- 5
Trowel it flush and match the texture
Drag a finishing trowel across the patch to level it with the surrounding concrete. Once it starts to firm up, match the driveway's finish — a light drag with a damp broom recreates the typical broom texture so the patch blends instead of standing out as a smooth slick spot. Feather the edges into the old concrete.
- 6
Cure it slowly, then seal
Let the patch cure per the label, and in Houston heat, mist it with water or cover it so it cures slowly rather than flash-drying and cracking. Keep traffic off until it is fully hard. Once cured, sealing the patch and the surrounding slab keeps moisture out — moisture is what causes spalling — so sealing is what stops the problem from spreading.
When to call a pro
Bring in a concrete pro when the spalling is widespread rather than a spot repair. If large areas of the surface are flaking, if the damage is deep enough to expose the rock aggregate across much of the slab, or if patched areas keep failing, the concrete's surface layer is breaking down and the driveway likely needs professional resurfacing or replacement. The same is true if spalling comes with structural cracks, sunken sections, or a slab that has heaved — those signal problems below the surface that a patch can not fix. A pro can also apply an overlay across an entire worn driveway for a uniform result that individual patches can not match.
Get a free quote from a local pro
No obligation — a licensed, insured local Houston partner will reach out. Available 24/7 for emergencies.
How to Patch Spalled or Chipped Concrete (DIY Driveway Repair) — FAQ
What causes concrete to spall or flake on a driveway?
Can I patch spalled concrete myself?
How do I keep concrete from spalling again after patching?
More DIY guides
How to Seal a Concrete Driveway Yourself (Houston Step-by-Step)
A weekend job that adds years to your driveway. Here is how to clean, dry, and roll on a quality concrete sealer the right way.
Try the fix →How to Fill and Repair a Concrete Crack (DIY Driveway Guide)
Small cracks grow fast once Houston water gets in. Here is how to clean out a crack and fill it properly so it stays fixed.
Try the fix →How to Clean Concrete and Remove Oil Stains (Driveway Guide)
From fresh drips to set-in oil shadows, here is how to pull stains out of concrete and get your driveway looking new again.
Try the fix →