Why Your Driveway Keeps Cracking (And How Resurfacing Stops It)

A driveway keeps cracking mainly because of ground movement, water getting under the slab, or a base that wasn’t properly compacted before the concrete was poured. Surface-level patching won’t fix cracking if one of these underlying causes is still active.

Identifying the actual cause first is what determines whether resurfacing will hold or whether the same cracks will simply reappear.

What Causes Concrete Driveways to Crack?

• Ground movement from expansive clay soils, common in parts of greater Hobart, shrinking and swelling with moisture

• Water pooling against or under the slab due to poor drainage

• Tree roots growing under or alongside the driveway

• A poorly compacted base layer that wasn’t stable before the concrete was laid

Is Some Cracking Normal in a Concrete Driveway?

Fine hairline cracks from natural concrete shrinkage during curing are common and usually cosmetic. Wider cracks, cracks that keep growing, or cracks with one side higher than the other point to a structural issue, not normal shrinkage.

Does Resurfacing Fix the Underlying Cause of Cracking?

Resurfacing repairs the surface and fills existing cracks, but it won’t stop new cracking if the ground movement or drainage problem underneath hasn’t been addressed. That’s why a proper assessment checks the cause before recommending resurfacing over replacement.

How Do You Stop a Driveway From Cracking Again?

• Improve drainage so water isn’t pooling against or under the slab

• Address any nearby tree roots before they cause further movement

• Use a flexible resurfacing system that can handle minor, ongoing ground movement

• Seal new cracks promptly so water can’t get underneath and make them worse

Can You Fix a Single Crack Without Resurfacing the Whole Driveway?

Small, isolated cracks can sometimes be patched and sealed on their own, but this is a short-term fix if the underlying cause, such as drainage or ground movement, is still active nearby. A full resurfacing gives a more consistent, longer-lasting result across the whole driveway.

Why Choose Hobart House Painter for Driveway Assessments?

As a fully licensed contractor, we look at drainage, soil movement and the condition of the base slab before recommending resurfacing, so the repair actually addresses why the driveway cracked in the first place.

Call Hobart House Painter on 0400 102 241 or email [email protected] for a driveway cracking assessment.