Three options, three very different numbers, and one question that decides between them: is the base still good? Everything else is detail. Property owners tend to evaluate pavement by looking at the surface, which makes sense but leads to expensive mistakes in both directions. People replace driveways that only needed crack work, and people overlay lots that needed full reconstruction and end up paying twice inside three years. The surface tells you what’s happening. The base tells you what to do about it. This article gives you a practical way to read your own pavement before anyone quotes you, so you can tell whether a contractor’s recommendation matches what you’re actually looking at. It covers the specific symptoms that point to each option, roughly what separates them in scope, and the warning signs that a proposed repair is going to fail. None of it requires equipment, just knowing which questions to ask. SECCION 1
Read the Base, Not the Surface
There’s a short list of symptoms that indicate base failure rather than surface wear, and they’re the whole decision. Sinking or depressions under load mean the material below has moved. Alligator cracking, that interconnected web pattern, means the base has lost its ability to support the surface above it. Water pumping up through cracks when a vehicle rolls across means the base is saturated. Potholes that reopen in the same spot after repair mean the void underneath was never addressed. If you see any of these, the base is compromised in that area and surface treatments will not hold. If the pavement is cracked but stable, level, and firm underfoot, the base is likely fine and cheaper options are genuinely on the table.
When Repair Is Enough
Crack filling and localized patching make sense on pavement that’s structurally sound but showing its age. Isolated cracks, transverse cracks from temperature movement, and edge cracking all qualify as long as the surface isn’t sinking around them. This is by far the cheapest path, priced by linear foot rather than square foot, and done correctly it buys several more years before anything larger is needed. It’s also the best value in the whole maintenance sequence, since sealing water out of the base is what prevents the failures that force replacement. The mistake here is waiting. Crack repair on a sound driveway is inexpensive. The same driveway two winters later may not qualify for it at all.
When Resurfacing Works
An overlay, meaning a new layer of asphalt installed over the existing surface, works when the base is solid and the problems are confined to the top. Widespread surface cracking, worn and raveling pavement, and general age all fit, provided nothing is sinking or alligatored. Failed spots get cut out and repaired first, then the overlay goes down over everything. It costs noticeably less than full replacement and takes less time, which is why it’s attractive for commercial lots that can’t close for long. The limits matter though: an overlay follows existing contours, so it won’t fix drainage unless it’s specifically designed to correct grade, and it can’t compensate for a base that’s already moving.
When Replacement Is the Only Real Answer
Full depth replacement means removing the asphalt and the compromised stone underneath, correcting the subgrade, rebuilding the base, and paving new. It’s the most expensive option and the only one that fixes a failed foundation. If large areas are alligatored, if the surface sinks under load, if potholes keep returning after repair, or if the pavement is simply at the end of a long service life, this is the honest answer. The hard part is accepting it when a cheaper quote is sitting on the table. An overlay over a failed base looks perfect for one season and then reflects every problem underneath straight back through. Paying once for reconstruction costs less than paying twice for a cover up.
