Asphalt
Driveway Resurfacing in Ontario, Oregon: Cost & Process
Cojo
May 30, 2026
7 min read
When an Ontario driveway looks tired — faded surface, spreading cracks, raveling edges — resurfacing is often the most cost-effective fix. An overlay lays a fresh layer of hot-mix asphalt over the existing surface, restoring a smooth, sealed driveway without the expense of a full tear-out. For homes across the Treasure Valley with a still-sound base, it is the smart middle path between patching and replacement.
The decision hinges on one thing: the condition of the base underneath. Resurfacing only works when the structure below the asphalt is stable. If the base has failed — and in Ontario's freeze-thaw climate that happens when winter moisture works into a weak sub-grade — an overlay will crack along the same lines within a season or two. Our resurfacing vs. replacement cost guide explains how to tell the difference.
Industry baseline ranges shown below. Actual costs vary based on size, surface condition, prep work, and current market conditions.
| Driveway Size | Approx. Square Footage | Industry Baseline Overlay Range |
|---|---|---|
| 1-car | 400–600 sq ft | $1,200–$2,400 |
| 2-car | 600–900 sq ft | $1,800–$3,600 |
| 3-car / long | 900–1,400 sq ft | $2,700–$5,600 |
Ontario's climate is one of contrasts. Hot, dry summers bake the surface and can accelerate oxidation and surface cracking, while cold winters bring freeze-thaw cycling that pries existing cracks wider. Both extremes argue for the same approach: seal every crack before the overlay goes down, and grade so water sheds off rather than pooling.
The summer heat works in your favor for the overlay itself — warm, dry conditions are ideal for laying and compacting asphalt, so Ontario has a long resurfacing season. The winter risk is what makes prep non-negotiable. Any crack left unsealed becomes an entry point for the next winter's water, and once that water freezes in the base, reflective cracking returns. A driveway resurfaced in summer and sealed ahead of the freeze season holds up far better through Malheur County winters.
An overlay is the wrong choice when the problem is in the base, not the surface:
If two or more describe your driveway, read our signs your driveway needs replacement guide first. The asphalt driveway overlay guide explains exactly when a second layer makes sense.
Some conditions only appear once the surface is cleaned and prepped:
A thorough site assessment catches most of these before the quote is set, which is why a measured estimate beats any price chart.
Stop guessing whether an overlay will hold. Cojo Excavation & Asphalt provides free, no-obligation assessments for Ontario and Treasure Valley homeowners. We measure your driveway, evaluate the base, and give you an honest recommendation — including telling you when resurfacing would be money wasted.
Request a free resurfacing estimate — we respond within 24 hours.
View our completed driveway projects and learn more about our asphalt maintenance services. For the full picture on residential driveways across Oregon, start with our complete asphalt driveway guide for Oregon.
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