Estimate the cost to install a concrete overlay on an existing slab based on square footage, overlay type, thickness, condition, and decorative finish options. Built for driveway, patio, and pool deck resurfacing projects.
Get accurate cost estimates before calling a contractor — compare prices and plan your budget.
Current concrete prices per yard, per sq ft, and per bag — updated for 2026 with regional cost breakdowns.
View Chart →Contractors classify concrete overlays by thickness and intended use. Use the table below to match your project goal to the correct overlay type before entering a thickness value above.
| Overlay Type | Typical Thickness | Best Use |
|---|---|---|
| Microtopping | 1/16 in to 1/8 in | Cosmetic refresh on floors with no cracking, smooth or lightly textured interior finishes. |
| Stampable Overlay | 1/4 in to 3/4 in | Driveways, patios, and pool decks needing a stone, brick, or wood pattern imprint. |
| Self-Leveling Overlay | 1/4 in to 1 in | Uneven interior floors needing a flat surface before tile, epoxy, or polish work. |
| Spray Knockdown | 1/16 in to 1/4 in | Pool decks and patios needing a textured, slip-resistant, splatter-style finish. |
Source: dgfloors.com "Concrete Overlay: Types, Cost, Application and Decorative Options," March 2026; Angi "What Are Concrete Overlays," January 2025.
Basic broom-finish overlays run $3 to $7 per square foot, mid-range decorative work runs $7 to $12 per square foot, and premium stamped or embedded designs run $8 to $20 or more per square foot, according to ConcreteNetwork's cost breakdown.
Angi's 2026 data puts stamped concrete overlays at roughly $3 to $5 per square foot for the overlay work alone, separate from full stamped concrete patio installation at $8 to $28 per square foot.
Local Concrete Contractor's 2026 guide notes overlays run $6 to $10 per square foot for slabs with minor cracking, while full replacement runs $12 to $18 per square foot when the sub-base has failed.
A typical overlay project, from prep through stamping and curing, is completed by a contractor in about two working days per Angi's stamped overlay guide.
Properly installed and resealed stamped overlays last around 25 years, provided the base slab stays structurally sound and the surface is resealed every 2 to 3 years.
Sources: ConcreteNetwork "Concrete Overlay Cost," 2026 update; Angi "What Are Concrete Overlays," January 2025; Local Concrete Contractor "Concrete Overlay Cost," June 2026.
An overlay poured directly over active cracks will telegraph the crack pattern through the new surface within one to two seasons. Route, fill, and monitor cracks before quoting overlay thickness.
Bagged overlay mix coverage drops fast as thickness increases. A bag rated for 40 square feet at 1/8 inch covers roughly half that area at 1/4 inch, which quick online calculators often miss.
Overlays restore appearance and add a wear layer, but they do not fix a settling or heaving slab. If the sub-base has failed, an overlay is a short-term cosmetic fix at best.
Most stamped overlays need resealing every 2 to 3 years. Homeowners who budget only for the initial install often get surprised by a $1 to $3 per square foot resealing bill down the line.
Area: 500 ft²
Thickness: 0.5 in stampable overlay
Condition: Minor cracks needing repair first
Base rate for stampable overlay: approx. $7.50/ft²
500 x $7.50 = $3,750 base labor + materials
Minor crack repair add-on: +6% = $225
Estimated total: approximately $3,975
This falls in the mid-range $7 to $12/ft² bracket for stamped driveway work, consistent with ConcreteNetwork's pricing tiers.
Area: 1,200 ft²
Thickness: 0.125 in spray knockdown
Condition: Good, no repairs needed
Base rate for spray knockdown: approx. $4.25/ft²
1,200 x $4.25 = $5,100 base labor + materials
Acrylic sealer add-on: +$0.55/ft² = $660
Estimated total: approximately $5,760
Pool decks favor thinner, slip-resistant knockdown textures over deep stamped patterns, which keeps the per-square-foot rate near the lower end of the basic tier.
A basic concrete overlay runs $3 to $7 per square foot, mid-range decorative work runs $7 to $12 per square foot, and high-end stamped or textured overlays with embeds or saw cuts can reach $20 or more per square foot, per ConcreteNetwork industry pricing data.
Concrete overlays typically run from 1/4 inch for microtoppings to 2 inches for structural or heavily stamped overlays, depending on the condition of the existing slab and the depth of the stamped or textured pattern.
Yes. Overlays cost roughly $3 to $12 per square foot for most residential work, compared to $8 to $18 per square foot to demolish and replace a slab, since replacement adds demolition, haul-off, and new base preparation costs.
Overlays work on slabs with minor to moderate surface cracking after the cracks are routed, filled with a flexible sealant, and checked for active settlement. Overlays are not a permanent fix for structural cracks caused by a failing base or foundation movement.
Basic broom-finish overlays are within reach for an experienced DIYer, but stamped or textured overlays are thin, cure fast, and leave little room for error, which is why most guides recommend hiring a specialist for decorative work.
A properly installed and maintained stamped concrete overlay lasts around 25 years, according to Angi's 2026 stamped concrete overlay data, provided it is resealed every 2 to 3 years and the underlying slab remains structurally sound.
Concrete overlay and concrete resurfacing describe the same process: applying a thin layer of pre-blended concrete over an existing slab to restore appearance and add a protective wear layer, per HomeGuide's 2026 concrete resurfacing cost guide.
Rates used in this calculator are default planning estimates derived from the ranges above. Always request itemized written quotes from local contractors before budgeting a final project cost.
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