Exposed Aggregate Concrete in Alameda, CA

Exposed aggregate is a decorative finish that washes away the top layer of cement paste to reveal the natural stone and pebble aggregate underneath, leaving a textured, richly detailed surface that is also genuinely slip-resistant. At Alameda Elite Concrete we design and pour exposed aggregate driveways, patios, pool decks, entryways and walkways throughout Alameda and the wider East Bay. Every job starts with a compacted sub-base, a reinforced 4,000 PSI mix and properly placed control joints, then finishes with the aggregate blend, color and level of exposure you choose. Call (510) 555-0100 for a free on-site estimate and a flat, fixed-price quote before any work begins.

Why Alameda Elite Concrete for Exposed Aggregate in the East Bay

Exposed aggregate lives or dies on timing the wash and choosing the right stone, so it pays to hire a crew that pours decorative concrete week in and week out. We handle the whole job in-house, from base grading to the final seal coat, and we quote a fixed price so there are no surprises.

• Licensed & Insured Crews: fully licensed and insured, with clean, on-schedule work and a workmanship guarantee on every pour.
• Decorative Finish Expertise: deep experience seeding aggregate, timing the exposure window, and washing to a clean, even reveal without popping stones loose.
• Quality Aggregates & Sealers: hand-picked pea gravel, granite and quartz blends plus premium sealers built to hold color and traction under strong Bay Area sun and coastal salt air.
• Residential & Commercial: from a backyard pool deck in the West End to a retail walkway in Oakland, we scale the same standards up or down.

Our Exposed Aggregate Process

An exposed aggregate slab is only as good as the day it is poured, and the wash window is unforgiving. Here is how we keep stone, color and cure under control from start to finish.

1. Base & Pour

We excavate, compact a stable sub-base, set forms to grade for proper drainage, and lay rebar and fiber mesh. We then place a reinforced 4,000 PSI mix and screed it flat, cutting in control joints to steer any future shrinkage cracking.

2. Seed or Integral Aggregate

Depending on the look you want, we either broadcast and float select stone into the fresh surface (seeding) or use a mix batched with decorative aggregate throughout (integral). Seeding lets us place premium stone exactly where it shows; integral keeps the aggregate consistent even as the surface wears. We talk through both options at the estimate so the finish matches how hard the surface will be used.

3. Time the Wash & Exposure

Once the slab firms to the right window, we wash and lightly brush away the top layer of cement paste to reveal the stone to your chosen depth. Timing here is everything, which is why we watch the set closely on warm, windy East Bay afternoons, too early and stones dislodge, too late and the paste will not release.

4. Cure & Seal

We cure the slab slowly to limit cracking, then apply a breathable sealer that deepens the stone color, locks out coastal moisture and keeps the texture easy to rinse clean. We finish with care instructions and a re-seal schedule.

Aggregate & Finish Options

The stone you pick sets the whole character of the surface. Installed exposed aggregate generally runs $12–$28 per square foot in the Bay Area depending on the aggregate, the area and site access; the notes below are estimates only and a free on-site visit sets your final number.

Aggregate Blends

Rounded pea gravel gives a classic, budget-friendly tan-and-brown speckle; granite and quartz blends add sparkle and crisp grays, blacks and whites for a more upscale look; and seeded specialty stone, like river rock or colored glass, lets us place premium aggregate right where it reads.

Color & Matrix Tint

We can tint the surrounding cement matrix with integral color so the paste between stones complements the aggregate instead of fighting it, warm buffs for pea gravel, charcoals to make quartz pop.

Smooth vs. Heavy Exposure

A light wash leaves a subtle, low-profile texture that is easy underfoot and easy to clean; a heavier exposure reveals more stone for a bolder, more aggressively slip-resistant surface. We match the depth to how the space will be used, gentler for barefoot pool decks, heavier for sloped driveways. Whatever the exposure, a consistent, well-timed wash across the whole slab is what separates a clean professional finish from a blotchy one.

Built for East Bay Homes

Exposed aggregate is a smart fit for our coast. The textured, stone-studded surface is naturally slip-resistant, which matters on the damp, foggy, salt-air lots common along Alameda's shoreline and out on Bay Farm, where a smooth slab can turn slick. It flatters the East Bay's mix of Craftsman bungalows, Victorians and clean modern builds, warm pea gravel for a period home, cool granite for a contemporary Oakland remodel. We see very little freeze-thaw here, so cracking from ice is rarely the issue; the real stressors are marine salt air, moisture and staining, which is exactly why sealing matters and why the finish needs periodic resealing to keep its color and shed grime. On the flats over bay fill and Young Bay Mud, we lean on a well-compacted sub-base and honest reinforcement to ride out long-term settlement, and up in the Oakland and Berkeley hills we place control joints with care where expansive clay swells and shrinks through the seasons. Plan on roughly $12–$28 per square foot installed as an estimate; Bay Area labor and permits push above national averages, so a free on-site estimate is the only way to set your final price. Weighing your options? Exposed aggregate is a great surface for a Concrete Driveway Installation or a Concrete Patio Construction, and if you prefer a molded stone or brick look, ask about Stamped Concrete Installation. Homeowners in Oakland and across Alameda call us weekly for these upgrades.

Ready to turn a plain slab into a textured, slip-resistant showpiece? Call Alameda Elite Concrete at (510) 555-0100 for your free on-site estimate and a fixed-price quote, or reach us through our contact page. We will walk your space, talk aggregate and exposure, and give you a straight number, no pressure.