Exposed aggregate concrete cost typically hinges on mix design, surface finish, slab size, location, and whether decorative edges or patterns are added. The price range reflects labor, materials, and prep work such as surface cleaning and curing. This article uses clear ranges to help builders estimate budgets and compare quotes.
Assumptions: region, slab size, surface finish detail, and installation crew hours.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $4.50 | $6.50 | $9.50 | Base concrete plus aggregate exposure finish |
| Labor | $5.50 | $8.50 | $14.00 | Placement, finishing, and seeding; includes curing time |
| Equipment | $1.00 | $2.50 | $4.50 | Power trowels, grinders, vacuum sander |
| Permits | $0 | $350 | $1,200 | Local zoning, sidewalk or driveway work |
| Delivery/Disposal | $0.50 | $1.50 | $3.50 | Truck delivery, waste removal |
| Contingency | 5% | 10% | 15% | Unexpected site conditions or changes |
Overview Of Costs
Typical cost range for an exposed aggregate driveway or patio is typically $6.50–$14.00 per square foot for materials and labor combined, with a complete project range often seen from about $3,000 up to $15,000 depending on area, slab size, and design complexity. A common residential installation runs $5,000–$12,000 for a 400–1,500 sq ft area. Per-square-foot pricing increases for detailed patterns, custom molds, or complex forms.
Cost Breakdown
Below is a practical breakdown using a table with major cost components and a brief per-project context. The numbers assume standard driveway or slab applications with moderate texture and a 4-inch thickness.
| Category | Low | Average | High | Assumptions |
|---|---|---|---|---|
| Materials | $4.50/sq ft | $6.50/sq ft | $9.50/sq ft | Portland cement, coarse aggregate, sealant |
| Labor | $5.50/sq ft | $8.50/sq ft | $14.00/sq ft | Placement, polishing, curing |
| Equipment | $1.00/sq ft | $2.50/sq ft | $4.50/sq ft | grinders, sander, trowels |
| Permits | $0 | $350 | $1,200 | Local codes, inspections |
| Delivery/Disposal | $0.50/sq ft | $1.50/sq ft | $3.50/sq ft | Material transport, waste removal |
| Contingency | 5% | 10% | 15% | Site conditions, changes |
What Drives Price
Surface exposure depth affects materials and finishing time. Deeper exposure reveals more decorative aggregate, increasing material use and labor. Sealer type and number of coats influence long-term maintenance cost and protection against staining. Region and climate shift both supply costs and duration of curing, impacting total price.
Other notable cost drivers include slab size, thickness, and access to the worksite. Larger driveways or patios require more materials and longer labor hours, often yielding a lower per-square-foot price due to economies of scale. Specialty aggregates, color additives, and pattern forms add to both material and labor components.
Costs By Region
Regional differences can swing overall pricing by roughly ±20% in practice, reflecting labor rates, material availability, and inspection requirements.
- Urban areas: higher labor and permit costs, often leading to higher overall price.
- Suburban: balanced cost profile with mid-range permits and access.
- Rural: lower labor costs but potential increases for delivery and limited supplier options.
Labor, Hours & Rates
Labor usually appears as a major share of the total. A typical residential project may require 1–4 days of crew work for a 400–1,000 sq ft area, with crew rates ranging from roughly $40–$70 per hour per worker depending on region and expertise. Estimated labor hours × hourly rate provides a quick sense of total labor cost, and higher-end finishes may push hours upward by 20–30%.
Extra & Hidden Costs
Some projects incur additional charges that aren’t always obvious at bid time. For exposed aggregate, consider:
- Prep work and surface repair beyond standard grinding
- Patterned edges, broom finishes, or stamping
- Additional curing time due to weather conditions
- Sealant selection and maintenance plan
Hidden costs may include site cleanup after erosion or backfill, and potential moisture mitigation if the slab interacts with nearby landscaping or irrigation systems.
Pricing Variables
Exposed aggregate pricing varies with several factors:
- Aggregate type and hardness (harder aggregates may require specialized equipment)
- Concrete mix design and slump control for proper exposure
- Sealer type, number of coats, and gloss finish
- Pattern complexity and edge treatments
Real-World Pricing Examples
Three scenario cards illustrate typical outcomes under common project conditions.
Assumptions: 500–700 sq ft patio, standard gray cement with decorative aggregate, curb access.
-
Basic — 500 sq ft, standard gray cement, minimal exposure, no pattern:
- Materials: $3.50–$5.50/sq ft
- Labor: $4.50–$7.50/sq ft
- Permits/Delivery: $150–$400
- Total estimate: $4,000–$8,500
-
Mid-Range — 600 sq ft, exposed aggregate with medium exposure and broom finish:
- Materials: $5.50–$7.50/sq ft
- Labor: $6.50–$9.50/sq ft
- Permits/Delivery: $200–$600
- Total estimate: $6,000–$12,500
-
Premium — 700 sq ft, deep exposure, color additives, stamped edges:
- Materials: $7.50–$9.50/sq ft
- Labor: $9.50–$14.00/sq ft
- Permits/Delivery: $400–$1,000
- Total estimate: $11,000–$22,000
Note: Prices are unit-based and assume typical local market conditions; project quotes may differ by region and contractor.
Maintenance & Ownership Costs
Exposed aggregate requires periodic sealing, typically every 2–5 years, to protect against staining and wear. Maintenance costs for sealing materials and labor average $0.20–$0.50 per sq ft per seal cycle. Over a 10-year horizon, expect sealant maintenance costs of $600–$2,000 for mid-sized installations. Long-term ownership costs depend on exposure depth and climate, influencing sealing frequency and surface repair needs.