Sealcoating, Resurfacing, or Repaving: Which One Do You Need?

Sealcoating is a protective coating applied over asphalt that is already structurally sound. It shields the surface from water penetration, ultraviolet oxidation, and the deicing salt that gets tracked across every driveway in coastal Maine all winter. It restores appearance and slows aging. It adds no strength, does not bridge cracks of any real width, and cannot correct grade.

Resurfacing, usually called an overlay, is new asphalt laid over the existing driveway after prep. It gives you a new wearing surface and can correct minor surface irregularities. It relies entirely on the base and the existing pavement below staying stable, because an overlay follows whatever it is laid over.

Repaving is removal and reconstruction. The failed asphalt comes out, the gravel base is regraded, supplemented, and recompacted, drainage gets corrected, and new asphalt is placed. It is the most disruptive and most expensive option, and it is the only one that fixes a base problem.

Walk the driveway on a dry day and look for four things. First, crack pattern. Thin, isolated hairline cracks are surface aging. Longer cracks that connect to each other are further along. A network of interconnected cracks in a scale-like pattern is alligator cracking and it means the structure has lost integrity.

Second, movement. Stand on suspicious areas and shift your weight. Firm is good. Spongy or slightly yielding means water has been in the base. Third, water. After rain, note where puddles sit and how long. Standing water is the single most reliable predictor of where a driveway will fail next.

Fourth, history. Cracks that reopen in the same place every spring, no matter what was filled the previous fall, are telling you the ground under that spot is still moving. That is a structural answer, and no surface product changes it.

If the surface is intact, drains well, feels firm, and the only issue is fading, oxidation, and hairline cracking, sealcoating with crack filling is the correct and cheapest maintenance step. Done on a regular cycle, it is what keeps a good driveway out of the other two categories.

If the surface is worn through, rough, or cracked in long lines but the driveway still feels solid underfoot and does not hold water, resurfacing is usually the right value. You get a new surface without paying for reconstruction you do not need.

If you have alligator cracking, returning potholes, soft areas, or water that sits, repaving that area is the answer. Sealing or overlaying a failing base is money spent to hide a problem for one or two seasons. On many properties the honest recommendation is a mix: rebuild the failed section, overlay or seal the rest.

Sealcoating needs warm, dry, stable weather to cure. Cool nights, heavy dew, and coastal fog all extend cure time, which is why late season sealcoating in York is a scheduling judgment rather than a date on a calendar. Crack filling tolerates cooler conditions than sealcoating does, so crack work can continue later in the fall.

Overlays and repaving need workable ground and air temperatures for compaction, so they belong in the main paving season. The practical sequence for most properties is: repair structure during the paving season, then protect the surface with sealcoating and crack filling on a maintenance cycle after it has cured.

One more timing note specific to this coast. Every fall, water left inside open cracks becomes the mechanism that widens them over winter. Whatever category your driveway falls into, closing cracks before the ground freezes is the highest-return small job available.

The goal is never to sell the biggest job. It is to match the work to the structure so you are not paying twice. If a driveway needs sealcoating, we say sealcoating. If it needs a section rebuilt, we say that, and we show you the spot and why it is failing.

Across York and Cumberland counties in Maine and Strafford and Rockingham counties in New Hampshire, the properties that stay in the cheap category are the ones that get cracks closed every fall and a sealcoat on a sensible cycle. The ones that end up in reconstruction are almost always the ones that skipped both for several winters in a row.