Concrete Finishes Compared: Broom, Stamped, Exposed Aggregate, and Polished

The biggest decision you make on a concrete project isn’t the contractor — it’s the finish. The right finish for a backyard patio is the wrong finish for a pool deck, and the right finish for a curb-appeal driveway is overkill for a side walkway. The cost difference between extremes can be 4x.

This guide compares the five most common finishes we install in Southeast Michigan: broom, stamped, exposed aggregate, polished, and salt finish. We’ll cover where each shines, where each fails, and how to pick by use case.

Side-by-Side Comparison

Finish	Cost / sq ft (MI)	Slip resistance	Lifespan	Best uses
Broom	$8–$12	High	30–40 yr	Driveways, walkways, garage floors
Salt finish	$10–$14	High	25–35 yr	Pool decks, patios
Exposed aggregate	$12–$18	Very high	30–40 yr	Pool decks, walkways, low-budget decorative driveways
Stamped	$18–$28	Medium (depends on sealer)	25–35 yr (with re-seal)	Patios, decorative driveways, entryways
Polished (interior)	$8–$15	Low (when wet)	40+ yr	Garages, basements, commercial floors

(Cost ranges are 2026 averages for SE Michigan and assume a 4” slab, MDOT 21AA sub-base, and standard reinforcement. See our 2026 stamped concrete pricing guide for line-item detail.)

1. Broom Finish

The default. After the slab is screeded and floated, a stiff-bristle broom is dragged across the surface to leave parallel grooves. That texture is what gives it traction and that classic gray driveway look.

Strengths: Cheapest of the structural finishes. Excellent slip resistance. Repairs and patches blend reasonably well. Survives Michigan freeze-thaw with proper sealing. Long lifespan with minimal maintenance.

Weaknesses: Plain visual. No color or pattern customization without staining or stamping. Surface can dust over time if poorly cured.

Best uses: Driveways, walkways, garage floors, utility slabs.

2. Stamped Concrete

Wet concrete is imprinted with patterned mats while still plastic, then color-hardened, antiqued with release powder, and sealed. Done well, stamped concrete looks like flagstone, slate, brick, or wood plank from 6 feet away.

Strengths: Hugely customizable — pattern, color, border. Premium curb appeal. Costs less than the natural stone it imitates. Holds up to vehicle loads when properly built.

Weaknesses: Most expensive of the typical finishes. Slip resistance depends entirely on the sealer choice (we use anti-slip additives in pool deck applications). Requires re-sealing every 2–3 years to keep the color from fading.

Best uses: Patios, decorative driveways, entryways, firepit surrounds.

For upkeep, see our stamped concrete maintenance guide.

3. Exposed Aggregate

The cement paste is washed off the top of the slab while still green, exposing the decorative stone aggregate underneath. The look ranges from subtle (small pea gravel) to dramatic (river rock or quartz).

Strengths: Excellent slip resistance — arguably the best of any finish in wet conditions. Distinctive look. Hides surface stains better than smooth finishes. Long lifespan. Underused in Michigan, which means it stands out in most neighborhoods.

Weaknesses: Aggregate choice locks in the color — you can’t easily change it later. Slightly harder to shovel snow off (the textured surface holds a thin layer). More expensive than broom but less than stamped.

Best uses: Pool decks, walkways, decorative driveways where slip resistance matters more than the “wow” factor.

4. Polished Concrete

Cured concrete is ground and polished with progressively finer diamond pads, then sealed with a densifier. The result is a smooth, glassy surface in any sheen from satin to high-gloss.

Strengths: Extremely durable. No coating to peel or wear off. Easy to clean. Modern, premium look. Often the cheapest finish for an interior slab because there’s no overlay material.

Weaknesses: Very slippery when wet — not appropriate for outdoor exposed surfaces in Michigan. Requires existing concrete in good condition, or a fresh pour with the right mix. Best for interior use only in residential settings.

Best uses: Garage floors, basement floors, retail/commercial interiors, modern home interiors.

5. Salt Finish

Rock salt is broadcast onto the wet surface, embedded with a roller, allowed to set, then washed out — leaving a textured surface of small pits. Common around pools.

Strengths: Cheaper than stamped but more decorative than broom. Good slip resistance. Pleasant texture underfoot.

Weaknesses: Pitted surface holds water and is more vulnerable to freeze-thaw damage in Michigan winters. We don’t recommend salt finish on driveways or other surfaces exposed to plowing and deicers.

Best uses: Pool decks (especially indoor or covered), patios in protected locations.

Decision Guide by Use Case

• Driveway, budget-focused: Broom finish. End of discussion.
• Driveway, curb-appeal-focused: Stamped, or exposed aggregate as a less-expensive alternative.
• Patio, entertaining space: Stamped (most popular) or salt finish.
• Pool deck: Exposed aggregate or salt finish for slip resistance. Stamped only with anti-slip sealer.
• Walkway / sidewalk: Broom for low budget, stamped for matching a stamped patio.
• Garage floor: Polished if interior, broom if part of an exterior driveway pour.
• Front entryway / porch: Stamped to make a statement, broom or exposed for low maintenance.
• Commercial entrance / storefront: Polished interior, broom or exposed exterior. See our commercial services.

Maintenance Reality Check

• Broom & exposed aggregate: sealer every 2–3 years, otherwise low-maintenance.
• Stamped: sealer every 2–3 years — required, not optional. Color fades visibly without it.
• Salt finish: sealer every 2 years — the pitted surface needs the protection.
• Polished: dust mop and damp mop. Re-polish every 5–7 years if you want to maintain showroom shine.

Our sealing & surface protection guide covers product choice and timing.