Polished concrete patio cost typically runs $5-$12 per sq. ft. for finishing an existing, sound slab, while a new patio with concrete placement and polishing can cost $8-$18 per sq. ft. Total price depends on patio size, slab condition, finish texture, drainage needs, and local labor rates.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Polish existing slab | $5/sq. ft. | $8/sq. ft. | $12/sq. ft. | Grinding, honing, and sealer |
| New poured and polished patio | $8/sq. ft. | $13/sq. ft. | $18/sq. ft. | Standard access and finish |
| 200-sq.-ft. existing patio | $1,000 | $1,600 | $2,400 | Sound slab, basic finish |
| Repairs or added drainage | $300 | $900 | $2,500+ | Varies with damage and excavation |
Assumptions: Typical U.S. suburban labor rates, ordinary site access, and a standard residential patio.
What a polished concrete patio costs by slab type
For an existing patio in good shape, contractors commonly charge $5-$12 per sq. ft. to grind, hone, and seal the surface. A 300-sq.-ft. patio therefore costs about $1,500-$3,600; unusually small projects may face a minimum charge of $500-$1,000.
New construction usually costs more because concrete placement and site preparation are additional work. A new poured and polished patio often totals $8-$18 per sq. ft., or $2,400-$5,400 for 300 sq. ft. Complex grading, a thickened edge, colored aggregate, or restricted access can push it higher. Outdoor surfaces are generally honed or given a textured finish rather than polished to a mirror shine, which can become slippery when wet.
Grinding, concrete, and sealing charges in a quote
Quotes separate surface preparation from the finish in some markets, but many contractors offer a combined per-square-foot rate. The breakdown below shows typical budget shares and rates; actual bids depend on the existing slab and selected process.
| Work item | Existing slab | New patio | Common pricing basis | What changes the charge |
|---|---|---|---|---|
| Grinding and honing | $3-$8/sq. ft. | $3-$8/sq. ft. | Surface area | Number of passes, hardness |
| Concrete and placement | $0 | $4-$8/sq. ft. | Slab area and thickness | Mix, access, reinforcement |
| Sealer and traction finish | $1-$3/sq. ft. | $1-$3/sq. ft. | Coating area | Product and texture |
| Repair and prep | $1-$5/sq. ft. | $0.50-$2/sq. ft. | Cracks, joints, base | Damage and drainage |
| Labor | $50-$100/hour | $50-$100/hour | Crew hours | Local wage and job size |
Assumptions: Rates are approximate; contractors may include labor in the square-foot price rather than itemizing it.
Ask whether crack repair, edge work, and sealer are included before comparing per-square-foot bids. Disposal of a removed slab, when replacement is necessary, may add $2-$6 per sq. ft. depending on thickness, hauling distance, and dump fees.
How patio size, slab damage, and finish change pricing
Area affects the total, but not always the rate: mobilization and machine setup make a 100-sq.-ft. patio more expensive per square foot than a 400-sq.-ft. one. On a small job, minimum labor charges can outweigh material savings.
Slab condition and outdoor traction requirements are major price variables. Hairline cracks may need only filling, while cracks wider than 1/4 inch, spalling, or uneven sections can require patching or replacement. A difference in elevation greater than about 1/2 inch may call for grinding or leveling work. A low-gloss, textured finish is often more practical outside than a high-gloss polish.
Thickness also matters for new work. A basic 4-inch slab on a stable, prepared base costs less than a thicker slab or one requiring reinforcement. If the patio needs a 1-2% slope for water runoff, grading and forming can add labor, especially beside a house where water must drain away from the foundation.
Regional labor rates from rural sites to large cities
Labor and disposal costs vary across the country. In rural and lower-cost markets, a straightforward existing-slab finish may land near the lower end of the range. Dense metropolitan areas, including parts of the Northeast and West Coast, can run about 15%-30% above a national midpoint because of higher wages, access limits, and operating costs.
Location can change the quote even when patio dimensions and finish stay identical. Remote travel, narrow gates, stairs, or a long equipment route may add 10%-25% to labor. Request bids based on the same measured area and finish specification so regional price differences are easier to assess.
How long grinding and patio installation take
A two- or three-person crew may finish an accessible 200- to 400-sq.-ft. existing slab in one to three workdays. Grinding itself can take 6-12 hours, with additional time for repairs, cleanup, sealing, and cure time. New patio work takes longer because excavation, base preparation, pouring, and concrete curing precede polishing.
Sealer cure time can determine when patio furniture and foot traffic can return. Many products need 24-72 hours before ordinary use, but weather, product instructions, and temperature affect timing. Rain or cold conditions can delay outdoor coating work; ask for the expected usable date, not just the grinding schedule.
Crack repair, drainage, and other add-on charges
Repairs are priced according to the problem rather than the patio’s finish area alone. Crack filling often costs $2-$5 per linear ft., while patching spalled concrete may run $5-$15 per sq. ft. of damaged area. Adding a drainage channel or correcting a water-flow problem may add $500-$2,500 or more, depending on excavation and connection requirements.
Confirm whether the quote includes pressure washing, masking nearby surfaces, and protecting landscaping. These tasks may be included or separately charged at $100-$400. Decorative stain or color can add roughly $1-$4 per sq. ft.; a slip-resistant aggregate or specialty sealer can add another $1-$3 per sq. ft.
When a broom-finished patio costs less than polishing
A standard broom-finished poured patio commonly costs about $6-$12 per sq. ft., while a new poured-and-polished exterior surface is often $8-$18 per sq. ft. A broom finish offers traction and lower upfront expense. Polishing can create a refined appearance, but the exterior finish should prioritize grip and weather resistance.
Replacing a structurally sound slab just to change its appearance is rarely the low-cost choice. Refinishing an existing surface may cost $5-$12 per sq. ft.; removing and replacing it can bring the project to $10-$24 per sq. ft. or more after demolition and disposal. If the slab has widespread settlement or major structural cracks, replacement may still be the better long-term estimate.
Ways to lower the patio polishing estimate
Keep the existing slab when it is sound, clear furniture and planters before the crew arrives, and combine patio work with other nearby concrete finishing to reduce setup charges. Request separate prices for repairs, stain, and specialty sealer so optional upgrades do not obscure the base rate.
Compare at least three written bids using the same area, finish, repair scope, and sealer specification. Ask each contractor to note the number of grinding passes, expected surface texture, traction treatment, and excluded work. Scheduling during a contractor’s less-busy period may help, but weather-sensitive outdoor work still needs suitable temperatures and a dry forecast.