Asphalt Driveway Cost Calculator › Cost by city › San Antonio, TX
Asphalt Cost in San Antonio, TX
Asphalt for a 20×40 ft (800 sq ft) asphalt driveway in San Antonio, TX costs about $4,072 ($3,461–$4,683). Local 2026 price is around $5 per sq ft installed. Free calculator inside.
What goes into asphalt cost in San Antonio
The line items below are 2026 national averages adjusted by the TX construction-cost factor (×0.97). A written San Antonio quote is usually built from these pieces — use them to sanity-check any bid line by line before you sign.
| Cost item | Typical San Antonio price | Unit |
|---|---|---|
| Hot-mix asphalt, material only | $97 – $155 | per ton |
| Installed: 2–3 in overlay on sound base | $2.91 – $4.85 | per sq ft |
| Installed: full new build incl. gravel base | $4.85 – $6.79 | per sq ft |
| Tear-out of old driveway | $0.97 – $2.91 | per sq ft |
| Sealcoating (every 2–4 years) | $0.19 – $0.53 | per sq ft |
Permit fees are set by the city rather than the market — confirm current fees with the local building department.
What’s different about building in San Antonio
San Antonio's wet season is the design driver for asphalt: build in a 2% crown or cross-slope so water sheds instead of soaking the base. Shallow limestone means excavation can hit rock; clay movement drives slab design more than any frost concern.
Permits: for larger flatwork, driveways, or anything structural, check requirements with San Antonio Development Services before work starts.
Estimate your own San Antonio project
Prices in San Antonio, TX run about -3% versus the national average. Enter your dimensions — the calculator starts from the local $5 per sq ft installed rate; change it to your supplier's quote for an exact figure.
Material shopping list
- Order about 14.5 tons of asphalt.
- Budget about $4,072 before delivery, taxes, and labor.
- Add 5–10% waste for uneven subgrade, cuts, settling, or spillage.
Formula & assumptions
Area = length x width. Asphalt tons = area x depth / 12 x 145 lb/cu ft / 2,000. Cost = area x local installed price per sq ft.
- Residential asphalt density: 145 lb per cubic foot
- Default depth: 3 inches
- Default installed price: $5 per sq ft installed
These assumptions make the estimate easy for search engines and AI answer tools to verify. Replace the default price with your supplier quote for a local estimate.
Asphalt cost in San Antonio by project size
Material quantities use the local San Antonio unit price; the last column adds delivery, base prep, and labor at TX-adjusted rates. Click any size for its full breakdown and calculator.
| Project size | You need | Material cost | Installed estimate |
|---|---|---|---|
| 10×20 ft · 3 in | 3.62 tons | $1,018 | $582 – $1,358 |
| 12×24 ft · 3 in | 5.22 tons | $1,466 | $838 – $1,956 |
| 16×40 ft · 3 in | 11.6 tons | $3,258 | $1,862 – $4,346 |
| 20×40 ft · 3 in | 14.5 tons | $4,072 | $2,328 – $5,432 |
| 20×50 ft · 3 in | 18.12 tons | $5,090 | $2,910 – $6,790 |
| 24×60 ft · 3 in | 26.1 tons | $7,330 | $4,190 – $9,778 |
Installed ranges assume straightforward access and a buildable subgrade; steep, tight, or poor-soil sites price above the top of the range.
Asphalt questions San Antonio homeowners ask
- How much does an asphalt driveway cost in San Antonio?
- At the local average of about $5.09 per square foot installed, a 20×40 ft (800 sq ft) asphalt driveway runs $4,072. Quotes typically land between $2,328 and $5,432 depending on base condition and whether old pavement must come out.
- What does asphalt cost per square foot in San Antonio?
- Resurfacing over a sound existing base runs about $2.91–$4.85 per square foot in the San Antonio market; a full new build with excavation and a compacted gravel base runs $4.85–$6.79. Tear-out of an old driveway adds $0.97–$2.91.
- Is asphalt or concrete cheaper in San Antonio?
- Asphalt installs for $2.91–$6.79 per square foot versus $5.82–$9.7 for concrete, so it wins upfront. The trade-off is upkeep: asphalt wants sealcoating every 2–4 years and lasts 15–25 years, while concrete commonly runs 30-plus.
- Do I need a permit to pave a driveway in San Antonio?
- Usually yes when the driveway meets a public street or sidewalk — the apron is in the right-of-way. Check with San Antonio Development Services; many contractors pull the permit as part of the job.
- How long does an asphalt driveway last in San Antonio?
- 15–25 years with a proper base and regular sealcoating. Drainage decides which end of that range you get: water standing on or under the mat is what kills asphalt, so keep a 2% slope and seal cracks yearly.
- Should I resurface or fully replace?
- If the base is sound and less than about a third of the surface is cracked, a 1.5–2 inch overlay at $1.94–$3.4 per square foot buys another decade. Widespread alligator cracking or soft spots mean the base has failed — overlaying it just resurfaces the problem.
Asphalt cost in nearby cities
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Regional estimate = national average adjusted by a TX cost factor. Not a quote. Actual prices vary by site conditions, access, and supplier.