Chip seal paving, also called tar and chip, is made by spraying hot liquid asphalt onto a prepared base and immediately covering it with crushed stone chips that are rolled in. It costs less than hot mix asphalt, handles heat well, gives great traction and has a rustic stone finish. It’s a popular choice for long rural and Hill Country driveways around San Antonio where hot mix would be too expensive.
Asphalt Paving San Antonio installs chip seal on new driveways, ranch and farm roads, private subdivision roads and over existing gravel or worn asphalt across Bexar, Kendall and Comal counties.
Why Choose Chip Seal?
- Lower cost: often far less per square foot than hot mix, which adds up on a 300-foot driveway.
- Great traction: the stone surface grips well in rain.
- Natural look: blends with rural and Hill Country properties better than a black driveway.
- Handles heat: the stone layer protects the asphalt binder from the summer sun.
- No dust or ruts: a big upgrade over gravel or caliche that washes out and tracks dust.
Chip Seal vs. Hot Mix vs. Gravel
| Chip seal | Hot mix asphalt | Gravel | |
|---|---|---|---|
| Typical cost | $2 – $5 per sq ft | $4 – $7 per sq ft | Lowest |
| Look | Stone finish | Smooth black | Loose stone |
| Lifespan | About 7–10 years per application | 15–20+ years | Needs regular regrading |
| Dust and ruts | No | No | Yes |
| Best for | Long driveways, ranch roads | Driveways, lots, heavy traffic | Very low budgets |
Single vs. double chip seal: a single layer suits light residential traffic. A double chip seal (two layers of asphalt and stone) is stronger and lasts longer, and we recommend it for most new driveways and roads.
Our Chip Seal Process
- Site check. We look at the existing surface, soil, slope and drainage.
- Base preparation. We grade and compact the base. On new driveways, we add crushed limestone base as needed and shape it so water drains off.
- Spray the binder. Hot liquid asphalt is sprayed evenly over the base.
- Spread the chips. Clean crushed stone is spread right away, while the binder is hot.
- Roll. Rollers press the stone into the binder.
- Second layer (double chip). The spray and stone steps are repeated.
- Sweep. After it sets, loose stone is swept off.
We'll measure your driveway or road and compare chip seal and hot mix prices for you. Mon–Sat: 7:00 AM – 6:00 PM.
Where Chip Seal Works Best
- Long driveways on acreage in Boerne, Helotes, Bulverde, Spring Branch and the Hill Country
- Ranch, farm and lease roads
- Private roads in rural subdivisions
- Upgrading old gravel or caliche drives
- Refreshing worn asphalt on low-traffic roads
For busy parking lots or areas where cars turn sharply, hot mix is usually a better choice. We’ll tell you honestly which fits.
Chip Seal Cost in San Antonio
| Project | Typical price range |
|---|---|
| Chip seal driveway | $2 – $5 per sq ft |
| Long rural driveway, 12 × 300 ft (3,600 sq ft) | $7,200 – $18,000 |
| Base work (if needed) | Priced separately |
Estimated 2026 ranges for the San Antonio area, not a quote. Compare it with hot mix in our asphalt paving cost guide.
Chip Seal FAQs
How long does a chip seal driveway last?
A double chip seal usually lasts about 7 to 10 years in the San Antonio area before it needs a fresh layer. Re-sealing on schedule over a good base can keep the driveway going much longer.
How much does chip seal cost?
Most chip seal driveways run about $2 to $5 per square foot. On a long rural driveway of 12 by 300 feet (3,600 sq ft), that works out to roughly $7,200 to $18,000, compared with $14,400 to $25,200 for hot mix. Base work, drainage and a second layer can change the final price.
Is chip seal cheaper than asphalt?
Yes. Chip seal usually costs much less per square foot than hot mix asphalt, which is why it’s popular for long rural driveways and private roads.
Will loose stones be a problem?
Some loose stone is normal in the first few weeks. We sweep off the excess after it sets, and the rest settles in with traffic.
Can you chip seal over my gravel driveway?
Often, yes. The gravel needs to be graded, compacted and shaped for drainage first. If the base is thin or full of clay, we add crushed limestone base before sealing.
Is chip seal good for steep driveways?
Yes. Its rough stone surface gives better traction than smooth asphalt, which helps on Hill Country slopes.
