Outdoor & Fencing · Exterior
Repair a Cracked Concrete Path
Repair summary
Brush out loose material from the crack, hose clean, let dry, then gun in a flexible concrete crack filler. For wider cracks (>5mm), mix a sand-and-cement slurry and trowel it in flush.
Likely issue
Surface cracking from ground movement
DIY difficulty
2/5
Estimated DIY cost
$25–$40
Estimated tradie cost
$250–$500
Tools required
- Wire brush
- Caulking gun
- Trowel
- Hose
Materials required
Step-by-step instructions
- Wire-brush the crack out and hose down to remove dust.
- Brush out loose material from the crack, hose clean, let dry, then gun in a flexible concrete crack filler. For wider cracks (>5mm), mix a sand-and-cement slurry and trowel it in flush.
Safety warnings
Step cracks wider than 10mm or any vertical displacement may indicate slab settlement — get a builder to assess before patching cosmetically.
When to call a tradie
Call a licensed tradie if the work is outside the scope of this guide, involves regulated trades (electrical, gas, structural, waterproofing), or if you discover hidden damage. A professional will typically charge $250–$500.
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