Not every cracked driveway or sidewalk in Brevard County needs to be torn out. Hairline cracks and minor settlement gaps can often be repaired for a fraction of the replacement cost. On the other hand, wide structural cracks, sunken slabs, and eroded culvert-adjacent driveways usually call for full replacement. The difference comes down to crack width, what’s underneath the slab, and whether the damage is cosmetic or structural.
How Do I Know If My Concrete Needs Repair or Replacement?
To determine repair vs replacement, start with crack width. Hairline cracks — thinner than about 1/8 inch — are typically surface-level and don’t affect structural integrity, making them good candidates to fix cracked concrete with a patch or sealant rather than a tear-out.
Wider cracks, like ones you can fit a coin into, usually mean the slab has shifted or water has been working its way underneath. In this case, a patch is a cosmetic fix on a problem that’s still active below the surface. It may look fine for a season and then reopen once the ground underneath keeps moving.
The other thing to check is whether the slab is level. If the crack sits next to a section that’s otherwise flat and stable, it’s usually a repair candidate. If it sits next to a section that’s visibly sunken, tilted, or pulling away from an adjoining slab — like where a driveway meets a garage apron — that’s a sign the ground underneath has settled unevenly, and the crack is a symptom of that movement rather than the actual problem. Patching the crack in that case won’t stop the section from continuing to shift.
What Causes Cracked Concrete in Brevard County?
Florida’s sandy, high-water-table soil doesn’t hold compaction the way clay-based soil does, making it prone to shifting and erosion under a slab. This is especially challenging near drainage culverts. When a culvert pipe underneath a driveway corrodes or clogs, water finds its way around it instead of through it, eroding the soil supporting the driveway from below. The surface crack is often the last visible sign of a problem that’s been developing underground for years — patching it does nothing for the erosion underneath.
Root intrusion, heavy vehicle loads, and Florida’s heat (which expands and contracts concrete without properly placed control joints) round out the most common causes of concrete cracking.
Can Cracked Concrete Always Be Repaired, or Does It Need Replacement?
Repair makes sense when the crack is narrow, the surrounding slab is stable and level, and the cause is surface-level. Replacement is the right call when cracks are wide and spreading, sections have sunk or tilted relative to each other, or the underlying cause hasn’t been addressed. Repairing the surface without fixing what’s underneath usually means paying for the same repair again within a year or two.
What About Driveways Cracking Near a Culvert Pipe?
This type of cracking is one of the more commonly misdiagnosed issues we see. A driveway crossing a culvert pipe is only as stable as the pipe underneath it. If that pipe has corroded, collapsed, or blocked, the driveway can crack or sink right at the crossing, even if the rest of the driveway looks fine. Resurfacing the visible crack is a temporary fix at best. The right approach is inspecting and, if needed, replacing the culvert pipe before addressing the surface above it.
How To Get Started
If you’re not sure whether your concrete needs repair or replacement, a site evaluation is the most reliable way to find out. Ed’s Concrete & Culverts has served Melbourne, Palm Bay, and West Melbourne since 1984, handling everything from driveway repairs to full culvert pipe replacement. Request a free quote before you decide which route makes sense.