The short answer
Polished concrete wins when the slab is in good condition, the space has heavy traffic and you want nothing on top that can peel: warehouses, stores, restaurants and showrooms. Epoxy wins when the slab is damaged or stained, when you want color, flakes or a metallic look, or when the floor needs chemical resistance and grip: garages, workshops, commercial kitchens and labs. Polished concrete runs about $3 to $12 per square foot and epoxy systems about $5 to $15, estimated.
How they differ
Polished concrete is mechanical: we grind the slab with diamond tooling, harden it with a densifier and polish it to the sheen you choose. The finish is the concrete itself, with its tones and its stone. Epoxy is a coating: a resin system bonded to ground concrete that forms a new, seamless surface on top.
Side by side
| Polished concrete | Epoxy | |
|---|---|---|
| What you see | The slab, its tones and aggregate | A new surface: color, flakes or metallic |
| Estimated range | $3–$12 / sq ft | $5–$15 / sq ft by system |
| Damaged slab | Shows the damage | Covers and levels it |
| Peeling | Nothing to peel | Possible if preparation is poor |
| Chemical resistance | Good with a guard | Very good with the right topcoat |
| Grip when wet | Satin helps; smooth when wet | Flakes, quartz or texture add grip |
| Maintenance | Dust mop, neutral cleaner, repolish over time | Mop and neutral cleaner; recoat topcoat over time |
When polished concrete is the better choice
- The slab is sound, without heavy cracking or patchwork.
- The space takes forklifts, carts or heavy foot traffic.
- You like the look of concrete and want to see it.
- You want the lowest maintenance over the years, with no coating to recoat.
When epoxy is the better choice
- The slab has cracks, patches, stains or old coatings that polishing would only highlight.
- You want a specific color, flakes or a metallic finish.
- The floor gets oil, chemicals or hot tires, as in garages and workshops.
- The floor gets wet and needs a textured, slip-resistant surface.
A common middle ground
Some owners want the look of concrete on a slab that cannot be polished. In that case, a thin cementitious microtopping resurfaces the slab and leaves a smooth, modern finish. We explain it on our concrete polishing page.
Next step
Send us photos of the slab and tell us how the space is used. We will tell you which floor makes sense and give you a range. See our concrete polishing and epoxy flooring pages, or the cost guide for every system.
