We get called out to a lot of driveways where the homeowner has already decided it needs to come out — and about a third of the time, it doesn't. Here's how we actually make that call.
Cracks that don't mean much
Hairline cracks running from a control joint are usually the slab doing exactly what it was designed to do. Concrete shrinks as it cures, and joints exist so the shrinkage cracking happens on a line you chose. Those are cosmetic.
Small surface crazing — a fine web of shallow lines — is a finishing artifact, not a structural problem. It can be resurfaced if it bothers you, but it isn't a reason to replace anything.
Cracks that do mean something
The signs that matter all point to the same underlying cause: the base beneath the slab has failed, and no amount of surface work fixes that.
- Vertical displacement — one side of a crack sits higher than the other
- Cracks wider than about a quarter inch that keep opening season to season
- Multiple cracks intersecting in a web across the whole driveway
- Sections that visibly sink, rock or hold water after rain
- Crumbling and spalling across large areas rather than isolated spots
The apron is worth checking separately
The apron where your driveway meets the street takes the most load of any part of the surface — every vehicle crosses it, and it sits at the transition between two different bases.
A failing apron with a sound driveway behind it is a section-replacement job, not a full replacement. Plenty of homeowners are quoted for the whole drive when only the first eight feet have actually failed.
Drainage is the tell we look at first
If water sits on your driveway after rain instead of running off, the slab has lost its pitch — which means the ground beneath it has moved. Standing water accelerates everything: it works into cracks, freezes, and pries the concrete apart from the inside.
A driveway that's cracked but still sheds water properly usually has years left. A driveway that ponds is on a much shorter clock regardless of how the surface looks.
What replacement should actually include
If replacement is the right answer, the base work is the part that determines whether you're doing this again in fifteen years. Excavation to proper depth, a compacted stone base, rebar grid reinforcement rather than light wire mesh, correct thickness for vehicle loading, and joints laid out deliberately.
A driveway poured thin over uncompacted soil will fail the same way the old one did, on roughly the same schedule. That's the difference worth paying for.