Resurfacing costs less and looks great — when the slab underneath deserves it. Here is exactly when an overlay makes sense and when it is money wasted.
Resurfacing puts a thin cementitious overlay across an existing slab. Done on the right slab it is a genuinely good option: it costs meaningfully less than replacement, it takes days instead of a week or more, and modern overlays can be stamped, stained, and textured so the finished result looks like new decorative concrete.
Done on the wrong slab it is a waste of money, because an overlay is only ever as stable as the concrete beneath it.
When resurfacing is the right call
The underlying slab needs to be structurally sound. That means no vertical displacement, no active movement, and no widespread pattern cracking. Surface-level problems are what overlays are for: discoloration, light spalling, worn broom finish, old stains, or simply a plain gray slab you want to look better.
Pool decks are a common good candidate. The slab is often fine but the surface has gone chalky and hot underfoot, and a textured overlay solves both at once.
The slab also has to be thick enough and well-bonded. We check by sounding it — a hollow sound under the hammer means delamination, and an overlay placed over a delaminated area will fail with it.
When replacement is the only real answer
Any vertical displacement rules out resurfacing immediately. If one section sits higher than the next, the base has failed, and an overlay will crack along the same line within a season.
Slabs that hold water because they were poured with no fall, or with fall in the wrong direction, cannot be corrected by an overlay of a few millimeters. Fixing drainage means re-forming and re-pouring to a corrected grade.
Slabs that are simply too thin for their use — a three-inch driveway carrying trucks, for instance — do not become adequate by adding a surface layer. The structural deficiency is unchanged.
Cost, lifespan, and the honest math
Resurfacing typically runs a fraction of replacement cost, which makes it tempting. But a good overlay on a sound slab lasts a long time, while an overlay on a failing slab may not make it two years. Divided over service life, the cheaper option is frequently the more expensive one.
Our approach on every estimate is the same: we assess the existing slab first, tell you which category it falls into, and price the option that actually fits. If your slab is sound and you just want it to look better, we will say so — resurfacing is a good product and we are happy to do it.