When an overlay is the right call
- Existing surface is structurally sound. No settled or pumping sections.
- Drainage works. No standing water after rain.
- Cracks are mostly hairline or transverse, not alligator over wide areas.
- Base appears solid. No soft spots felt underfoot or under load.
- Surface elevation can rise 1.5 to 2 inches without breaking garage thresholds, sidewalks, or door clearances.
When to tear out and replace instead
- Alligator cracking covers a meaningful portion of the surface.
- Sections settle, pump under load, or have visible base failure.
- Recurring potholes despite past patching.
- Drainage is broken at the source. Adding asphalt on top will not fix grade or runoff.
- The existing thickness is far below recommended for the loads using it.
- Garage thresholds, sidewalks, or door clearances cannot accept another inch and a half of surface.
Cost ranges to plan around
Residential asphalt overlays commonly fall in a 3 to 7 dollars per square foot range. Full tear-out and replacement typically lands in a 7 to 15 dollars per square foot range, depending on removal, hauling, base repair, and local pricing. Get two written quotes against the same scope before deciding.
Lifespan tradeoff
An overlay over a sound base often adds 8 to 15 years before the next major repair. A properly built new driveway with strong base prep can run 20 to 25 years. The overlay is cheaper now. Replacement is usually cheaper per year of useful life, if the existing driveway is past saving.