New Surface, Same Solid Slab
Resurfacing — also called an overlay — bonds a new layer of polymer-modified concrete over your existing slab. The result looks and feels like a brand-new pour: smooth or textured, plain or decorative, in the color you choose. It costs far less than tearing out and replacing, and most jobs are done in two to three days.
The catch, and it matters: an overlay is only as good as the slab underneath. Resurfacing is for concrete that is structurally sound but ugly — surface stains, light scaling, faded color, minor pitting. If the slab is cracked through, heaved, or sitting on a failed base, the overlay cracks and lifts right along with it. We test the slab before quoting. If it will not hold an overlay, we will tell you to look at replacement instead.
How an Overlay Bonds for Good
Overlays fail when they are slapped onto a dirty, smooth slab. Ours do not, because the prep is most of the job:
- Deep cleaning. The slab is pressure-washed and degreased. Oil stains, tire marks, and algae all get removed — anything left behind weakens the bond.
- Surface profile. We mechanically etch or grind the surface so the overlay has texture to grip. A slick, sealed slab will not hold an overlay without this step.
- Crack and joint repair. Working cracks get filled and joints get addressed first, so movement in the old slab does not telegraph straight through the new surface.
- Bond coat and overlay. A bonding agent goes down, then the polymer-modified overlay at 1/4 to 1/2 inch thick, troweled or sprayed to the chosen texture.
- Sealer. After curing, a protective sealer locks in the color and guards against water, salt, and UV.
Decorative Options
Overlays are not limited to plain gray. A stampable overlay can be textured with the same patterns as stamped concrete — slate, flagstone, brick — at a lower cost than a full stamped pour. Knockdown and spray textures give pool decks and patios a cool, slip-resistant surface. Integral color and stains open up earth tones that suit Maryland homes. If you want the look of exposed aggregate without replacing the slab, seeded overlays can get close.
Where Overlays Shine
Driveways with surface wear but flat, stable slabs. Patios that are structurally fine but stained or dated. Pool decks that need better traction. Front walks and porches where tear-out would disturb landscaping. Anywhere the bones are good and only the skin needs work. After resurfacing, keep up with concrete sealing every few years — the sealer is what protects your investment.
Overlay or New Pour: How to Choose
Think of it as a simple test. If your slab is flat, drains well, and the damage is only skin-deep — stains, light scaling, faded color — an overlay gives you a like-new surface for roughly half the cost of replacement. If the slab is cracked through, heaved, or rocking on a failed base, no surface treatment survives, and a new pour is the honest answer. Age alone does not decide it: we have overlaid 30-year-old slabs that were built right, and recommended replacement on 10-year-old ones that were not. The inspection tells the story, and we walk you through what we find before you spend anything.
What It Costs
Resurfacing typically costs 40 to 60 percent less than full replacement. Most overlay projects fall between $2,000 and $6,000 depending on square footage, how much prep the slab needs, and whether you choose a decorative finish — your written quote after our visit is the real number. Stampable and colored overlays run higher than plain gray.
Find Out If Your Slab Qualifies
Fill out our contact form with photos of your concrete if you can. We'll inspect the slab in person, test whether it will hold an overlay, and give you a written quote — or an honest no if replacement is the right call.