Exposed Aggregate Concrete Cost in 2026
Exposed aggregate concrete costs $8 to $18 per square foot installed, with most homeowners paying around $12. That’s roughly double plain gray concrete ($4–$8) and on par with stamped concrete ($8–$20). The premium buys a textured, naturally slip-resistant decorative surface — which is why it dominates pool decks and sloped driveways.
How Much Does Exposed Aggregate Cost vs. Other Finishes?
| Finish | Cost per Sq Ft | Slip Resistance | Look |
|---|---|---|---|
| Plain broom-finish | $4 – $8 | Good | Utilitarian gray |
| Exposed aggregate (integral) | $8 – $13 | Excellent | Uniform pebble texture |
| Exposed aggregate (seeded, premium stone) | $10 – $20 | Excellent | Designer stone surface |
| Stamped concrete | $8 – $20 | Fair–good | Mimics brick/stone/tile |
Pricing scales with labor more than material. BLS Occupational Employment and Wage Statistics puts the national median wage for cement masons and concrete finishers near $25 per hour, and decorative finishing demands the most skilled (and best-paid) finishers on a crew — expect the same exposed aggregate patio to quote 20–40% higher in a high-wage metro like Chicago than in Dallas. Baseline slab pricing is in the full concrete cost guide.
What Is Exposed Aggregate, Exactly?
Every concrete mix contains stones (aggregate) hidden under a skin of cement paste. Exposed aggregate finishing removes the top 1/16–1/4 inch of that paste — usually by spraying a surface retarder at the pour and pressure-washing the next day — to reveal the stones. The result is durable, textured, and decorative without dyes or stamps. The Portland Cement Association classifies it among the oldest and most reliable decorative concrete finishes, used for over a century.
Seeded vs. Integral: Which Method Should You Choose?
There are two ways to get stones at the surface, and the choice drives both cost and look:
- Integral (exposed standard mix). The crew simply exposes the aggregate already in the ready-mix. Cheapest route ($8–$13/sq ft), but you get whatever rounded gravel the local batch plant uses — fine for a uniform, natural look.
- Seeded. Decorative stones are broadcast (“seeded”) onto the fresh surface and troweled in, then exposed. This concentrates premium stone exactly where you see it, enabling dramatic colors and consistent coverage — at $10–$20/sq ft.
Seeding costs more in both material and finishing labor, but it’s the only way to get specific designer stones without paying for them through the entire slab depth.
How Much Do Different Aggregates Cost?
Stone choice moves the price meaningfully:
- Local river gravel (browns, tans, grays) — baseline; included in standard pricing.
- Crushed granite or basalt (salt-and-pepper, charcoal) — adds $1–$3/sq ft.
- Imported pebbles (black polished, white marble, red lava) — adds $2–$6/sq ft seeded.
- Glass or shell aggregate (custom decorative) — adds $4–$8/sq ft and demands an experienced crew.
Regional aesthetics matter too: desert Southwest projects favor warm tans and corals that match native stone, Pacific Northwest work leans to dark river rock, and coastal markets often seed shell or white pebble. Using locally common aggregate is both cheaper and usually better-looking in context.
Why Is Exposed Aggregate Best for Pool Decks and Slopes?
Slip resistance is the finish’s standout functional advantage. The exposed stones create constant micro-texture that grips wet feet and tires — unlike smooth-troweled or heavily sealed stamped surfaces, which can be slick when wet. That’s why exposed aggregate is the default specification for pool decks, sloped driveways, and entry patios in rainy climates. The American Concrete Institute publishes finishing and curing standards (ACI 302 among them) that govern how decorative flatwork should be placed; crews that follow them produce evenly exposed, durable surfaces instead of patchy ones.
What Does Exposed Aggregate Require for Maintenance?
Sealing is not optional. The exposed stones are held by a thinner paste layer than a standard finish, so:
- Seal at installation and reseal every 2–3 years ($100–$300 DIY, $0.50–$1.50/sq ft professionally).
- Skip de-icing salts in freeze-thaw climates — they pop stones loose and spall the matrix.
- Pressure-wash gently; high pressure at close range can dislodge aggregate.
A well-sealed exposed aggregate surface lasts 30+ years. An unsealed one in a freezing climate can start shedding stones within five.
How Can You Save on Exposed Aggregate?
- Choose the integral method with standard local gravel.
- Use seeded premium stone only on focal areas — the entry band or pool surround — with standard finish elsewhere.
- Bundle the pour with other flatwork to spread mobilization costs.
- Reseal on schedule — far cheaper than restoring a spalled surface.
- Get 2–3 bids with the stone and method specified identically — see how to compare contractor bids and the FTC’s contractor-hiring checklist; always ask for photos of the crew’s past exposed aggregate work specifically.
Frequently Asked Questions
How much does exposed aggregate concrete cost? $8–$18 per square foot installed, averaging about $12. Integral exposure of standard mix runs $8–$13; seeded premium stones push jobs to $10–$20 per square foot.
Is exposed aggregate cheaper than stamped concrete? They overlap: $8–$18 vs. $8–$20 per square foot. Exposed aggregate wins on slip resistance and hides wear better; stamped offers far more pattern variety. Decide on looks and use, not price.
What’s the difference between seeded and integral exposed aggregate? Integral exposes the gravel already in the ready-mix — cheapest, natural look. Seeded broadcasts decorative stones onto the fresh surface, giving designer color control for $2–$7 more per square foot.
Does exposed aggregate need sealing? Yes — at installation and every 2–3 years after. Sealing locks the stones in place and prevents freeze-thaw spalling; skipping it is the main reason these surfaces fail early.
Is exposed aggregate good for pool decks? It’s the gold standard: the stone texture grips wet bare feet where smoother finishes get slick. Use rounded (not crushed) aggregate for barefoot comfort.
Last updated: June 2026. National averages for informational purposes only — get local quotes for exact pricing.
Sources: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics · American Concrete Institute · Portland Cement Association · FTC: Hiring a Contractor