Quick Verdict
For most commercial lots, sealcoat frequency runs every two to four years and crack sealing should be done annually. Those are starting points — heavy traffic, an aging surface, and the abrasion of sweeping all push the sealcoat interval shorter, while a low-use lot in good shape can stretch it longer. In Oregon, both jobs belong in the dry-season window (roughly May through October) so the material cures before the rains. Crack sealing always leads sealcoating, never the other way around. This guide sets the cadence and the local timing.
The Two Jobs Do Different Work
Sealcoating and crack sealing get lumped together, but they protect the pavement in different ways, and they are not interchangeable.
- Crack sealing is structural protection. It keeps water out of cracks that reach toward the base. Water in the base is what kills a lot, so this is the highest-return step you can take.
- Sealcoating is surface protection. It is a thin coating that shields the asphalt binder from UV, oxidation, and surface water. It does not bridge a moving crack and adds no strength.
You crack seal first to close the openings, then sealcoat to protect the surface. Doing it in the wrong order traps the cracks under the seal and wastes the work. For the full program context, see our commercial maintenance plan.
How Often to Sealcoat
Most commercial lots in Oregon land on a two-to-four-year sealcoat cycle. The right interval inside that range depends on a few things:
| Factor | Shorter interval (≈2 yr) | Longer interval (≈4 yr) |
|---|---|---|
| Traffic | Heavy, daily turnover | Light, low turnover |
| Sun exposure | Open, south-facing lot | Shaded |
| Surface age | Older, oxidizing | Newer |
| Sweeping abrasion | Frequent mechanical sweeping | Minimal |
How Often to Crack Seal
Crack sealing is an annual job for most commercial lots. New cracks open every season as the pavement flexes with temperature and traffic, and each unsealed crack is an entry point for water. Catching them yearly, before winter, keeps the base dry through the wet months. A formal crack sealing program sets routing, cleaning, and material standards so the work actually lasts.
Not every crack gets sealed. Hairline cracks tighter than a pencil line often cannot be cleaned and filled well; widespread alligator cracking is a structural signal, not a sealing job. The annual pass targets the working cracks — the ones wide enough to clean, route, and fill.
Oregon Timing: The Wet-Season Window
Both jobs need warm, dry conditions to cure. In practice that means May through October across most of Oregon, with the shoulder months tighter east of the Cascades and in the Gorge where overnight temperatures drop sooner. Sealcoat applied too cold or before rain will not bond and will track or wash off. Crack sealant has a slightly wider window but still needs a dry crack to bond.
This timing matters for scheduling. The same dry weeks every property manager wants are when good crews book out. Plan the work in late winter so you hold a spot in the dry window. For how these intervals fit the broader decline curve, see the pavement lifecycle guide.
What It Costs to Stay on Cadence
Industry Baseline Range: sealcoating commonly plans in the range of $0.15 to $0.30 per square foot per application, with crack sealing typically priced by the linear foot or as part of a per-square-foot maintenance number; high crack density and difficult access push both higher+. These are industry baseline ranges for planning only — actual pricing depends on lot size, access, condition, and current market conditions. Get a site-specific quote.
Current Market Reality
Sealcoat and crack-seal crews fill their best-weather weeks first, and material costs move with the petroleum index. Booking the work early in the season usually means a better rate and a proper cure. The lots that get squeezed into October rush jobs are also the ones most likely to see the seal fail over winter.
The Bottom Line
Crack seal every year, sealcoat every two to four, and do both in the dry window with crack sealing first. That cadence keeps water out of the base and the binder protected, which is what actually buys you years of extra pavement life. Cojo runs asphalt maintenance services on a cycle across Oregon, so the timing and sequence are handled. Request a quote to set your lot's cadence.