Overlay vs replacement cost breakdown

Concrete Overlay Cost Calculator

Answer first: concrete overlay costs $3–$7 per sq ft installed in 2026 — a fraction of the $6–$12/sq ft full replacement cost. Micro-topping: $3–$5/sq ft. Self-leveling: $4–$8/sq ft. Decorative/stamped overlay: $8–$18/sq ft. Calculate your project cost and check whether overlay or replacement is the better value.

Estimate overlay cost

200 sq ft patio overlay

Basic overlay: $600–$1,400 total (~$3–$7/sq ft)

Surface prep (cleaning, crack repair, grinding) adds $100–$300. Existing concrete must be in fair-to-good structural condition.

Overlay vs replacement comparison

Overlay: $3–$7/sq ft vs. Replacement: $6–$12/sq ft

Overlay makes sense when cracks are hairline-only and the slab is structurally sound. Replace when cracks are wide, heaved, or spalling covers >30% of surface.

Stamped decorative overlay

$8–$18/sq ft vs. New stamped concrete: $12–$22/sq ft

Decorative overlay renews appearance without full demolition. Color matching to adjacent surfaces can be difficult — get samples first.

Interactive workflow

Run the numbers, then save or export the project

View planning notes
Best reviewed quote
Ready-mix supplier A
Red flags
0
Proposal total
$3,824
Pour window
171 min
Local cost defaults and ZIP memory

Saved cost defaults

Reuse bag price, ready-mix price, delivery fee, and waste factor across quote reviews.

Local assumptions
ZIP47474
1 yd3 as bags$259
1 yd3 ready-mix$475
Break-even3.3 yd3
  • 80 lb bag price: $6
  • Ready-mix price per yd3: $165
  • Delivery + short-load: $310
  • Wait-time rate: $95 per hour

Save this estimate or download a PDF report

The PDF report uses the current calculated result. Save the estimate first when you want to reuse the inputs later.

How much does a concrete overlay cost per square foot?

Concrete overlay costs $3–$7 per sq ft installed in 2026. Basic micro-topping (1/16–1/8 in): $3–$5/sq ft. Self-leveling overlay: $4–$8/sq ft. Stamped or decorative overlay: $8–$18/sq ft. Surface preparation (crack repair, grinding, priming) adds $1–$3/sq ft separately.

Is it cheaper to overlay or replace concrete?

Overlay costs $3–$7/sq ft vs. full replacement at $6–$12/sq ft, so overlay is typically 40–60% less expensive. However, overlay only makes sense when the existing slab is structurally sound with only cosmetic damage. Cracked, heaved, or heavily spalled concrete requires replacement.

How long does a concrete overlay last?

A thin overlay (micro-topping) lasts 10–15 years with proper sealing and maintenance. Thicker polymer-modified overlays and stamped overlays typically last 15–25 years. Reseal every 2–3 years outdoors. Lifespan depends heavily on surface prep quality and traffic level.

What surface prep is needed before a concrete overlay?

Surface prep includes cleaning (pressure washing), crack repair (epoxy or polyurethane caulk), grinding or shot-blasting to open pores, and applying primer. Prep typically adds $1–$3/sq ft and is essential for adhesion. Skip prep and the overlay will delaminate within 1–2 years.

Can I apply a concrete overlay myself?

Basic resurfacers (like QUIKRETE Re-Cap) are DIY-friendly for flat slabs in good condition. Self-leveling overlays and thin micro-toppings require more skill. Stamped overlays require professional installation. DIY resurfacers cost $0.50–$1.50/sq ft in materials only vs. $3–$7/sq ft professionally installed.

What types of concrete overlay are there?

Main types: (1) Micro-topping (1/16–1/8 in): thin cosmetic layer, good for interior floors. (2) Self-leveling overlay (1/8–1/2 in): fixes uneven floors, requires minimal prep. (3) Stamped overlay: adds texture/pattern to existing concrete. (4) Spray-down or knockdown: used on pool decks and patios. (5) Polymer-modified overlay: thicker, more durable, used for structural repairs.