Finish · Charlotte NC

Polished Concrete

Ground, densified and refined to a mechanical shine

In detail

What to know about polished concrete

Polishing is grinding, not coating

A polished floor is produced by grinding the slab with progressively finer diamond abrasives, exactly as a lapidary polishes stone. There is no topping and no coating. Between the coarse and fine stages a chemical densifier is applied, which reacts with the concrete and hardens the surface from within, and the subsequent passes then burnish that hardened surface to a shine. Because the shine is the concrete itself, there is nothing to peel, delaminate or yellow, which is the fundamental advantage over an epoxy floor.

Gloss and grit are separate choices

Two independent decisions define the result. The first is aggregate exposure: a cream polish grinds only lightly and keeps the surface paste, a salt-and-pepper cut takes off a little more and reveals the sand, and a full aggregate cut goes deep enough to expose the stone like a terrazzo. The second is the gloss level, set by how far up the grit sequence we go — satin, semi-gloss or high gloss. A satin salt-and-pepper floor and a high-gloss aggregate floor are both polished concrete and look nothing alike.

The slab decides what is possible

The floor you can get is limited by the slab you have. A slab poured with no thought of polishing may have soft spots, a weak surface, or aggregate sitting at inconsistent depths, and grinding into it reveals all of that. Trench patches, old adhesive, and the darker band where a slab was poured in two pours will all still be visible afterwards, sometimes more so. We core-check and grind a test area before quoting a finish level, because promising a full aggregate cut on a slab that cannot deliver one evenly is the standard way this goes wrong.

Where it earns its cost

Polished concrete is at its best on interior floors that already exist and are already concrete — basements, garages, workshops, studios and retail spaces. You are converting a surface you already own into a finished floor with no added thickness, no thresholds and no material to replace in fifteen years. Its maintenance is genuinely low: dust mopping and occasional neutral-pH damp mopping, with a re-burnish every few years in heavy traffic rather than a strip and recoat.

When we will say no

We do not polish outdoors. A high-gloss surface is dangerous when wet, it holds no advantage in weather, and UV plus freeze-thaw is not what the finish is for — that request comes up for patios and pool decks and the answer is a textured finish instead. We also do not polish slabs with active moisture coming up through them until that is addressed, and we do not polish over unsound patches on the strength of a photograph. Both are cases where doing the job as asked would produce a floor nobody is happy with.

Commonly used for

Patios Pool Decks Outdoor Living Areas Walkways & Entries Decorative Driveways Courtyards & Surrounds

Other finishes

Six alternatives

Stamped Concrete

Texture pressed into the slab while it is still green

Stained Concrete

Colour that reacts with the slab rather than sitting on it

Exposed Aggregate

Wash the paste back and let the stone do the work

Decorative Overlays

A new surface bonded to a sound slab

Saw-Cut Designs

Lines cut into the slab as pattern, not just as joints

Colored Concrete

Pigment through the mix, or hardened into the surface