Berwyn Epoxy Flooring grinds and finishes polished concrete floors in Berwyn, IL, serving surrounding cities including Forest Park, Lyons, Brookfield, River Forest and Summit. In our 20+ years on concrete we have polished new commercial slabs, old basement floors and retail spaces between tenants, and the first lesson of every one is the same: polishing reveals the slab rather than covering it.
That is why every polished concrete job starts with a test area. We grind a small section of your floor, show you what aggregate, patches and old repairs come up, and only then quote a finish level, so the floor you picture matches the floor the concrete can actually give you.
The proposal states the grit sequence, the densifier, the guard and the sheen level you chose. Each of those is a step you can see on the schedule and check on the finished floor, rather than a single line that just says polish.
How Polished Concrete Is Made
Metal-Bond Grinding to Open the Slab
A polished floor starts with coarse metal-bond diamonds that flatten the slab, remove sealers and coatings, and cut down to the level of exposure you want. This is the heavy step, and it is where old paint, adhesive and high spots come off.
On a prewar slab this step often uncovers what years of coatings were hiding. We stop to show you before going further, because the next steps only refine what grinding reveals.
Lithium Silicate Densifier
Once the surface is opened, we apply a lithium silicate densifier. It soaks into the concrete and reacts with it to harden the surface, which is what lets the slab take a polish instead of dusting under the diamonds.
Densifying also tightens the surface against water and stains. It is the part of the job you cannot see, and skipping it is the shortcut that separates a polished floor from a floor that was simply shined up.
Resin Diamonds and Honing to Sheen
After densifying, the crew moves through finer and finer resin-bond diamonds. Each pass removes the scratches left by the one before, and the sheen rises as the scratch pattern shrinks.
Where we stop in that sequence decides the finish. A lower grit gives a satin, honed look, while the finest passes produce a reflective surface you can see light fixtures in.
Choosing How the Floor Looks
Cream, Salt and Pepper, or Full Aggregate
The depth of the grind sets what shows. A light grind keeps the smooth cream finish on top, a medium grind exposes a fine fleck of sand and small stone often called salt and pepper, and a deep grind cuts into the large stone for a terrazzo-like look.
Old slabs rarely expose evenly, because they were not poured or finished with a polished floor in mind. The test area tells us which of these looks your slab can deliver consistently across the room.
Sheen Levels From Matte to High Gloss
Sheen is usually described in levels from flat to high gloss. A matte or satin polish hides scuffs and dust well and suits a working shop or a busy basement, while a high gloss reads as clean and bright in a showroom or lobby.
The higher the gloss, the more it shows wear paths over time. We match the level to the traffic you expect rather than defaulting to the highest shine.
Dyes and Saw-Cut Patterns
Penetrating dyes go in during polishing to tint the floor without hiding its texture. They can be used across the whole room or within saw-cut borders and grids to create a tile pattern or a logo.
Dyes are absorbed unevenly by patched areas, which can be a feature on a rustic floor or a problem on a formal one. We show the effect on your test area so there are no surprises.
Polished Concrete for Homes and Businesses
Basements and Lower Levels in Older Homes
A polished basement floor has no coating to blister when moisture moves up through the slab, which makes it a practical choice under many older homes. It also cleans easily and pairs well with area rugs in a family room or office.
The tradeoff is that every patch and old trench shows. In a bungalow basement with decades of repairs, we may recommend a coating instead, and we will tell you which way the test area points.
Retail Floors and Tenant Turnovers
Storefronts often have old tile, carpet glue or a worn coating to remove when a lease changes hands. Grinding that off and polishing the slab beneath can give the next tenant a durable, low-maintenance floor inside the turnover window. We schedule the noisy grinding passes for hours that suit neighboring businesses and finish the quieter polishing steps after that.
Warehouses, Showrooms and Light Industrial Space
Large open slabs are where polished concrete shines, both literally and in cost of ownership. Forklift and pallet traffic do not chip a polished surface the way they can chip a coating, and the floor only needs periodic cleaning and burnishing.
Joints get a semi-rigid filler so hard wheels do not break their edges. Areas with heavy chemical use, such as battery charging stations, may still need a coating in that zone.
Living With a Polished Floor
Guards and Day-to-Day Cleaning
A penetrating guard is applied as the last step to add stain resistance and boost the sheen. Day to day, a dust mop and an auto scrubber or damp mop with a neutral cleaner is all the floor needs.
Harsh acidic or citrus cleaners can etch the surface over time. We leave written care instructions with the cleaners we recommend.
Burnishing and Re-Polishing
In high-traffic areas the guard wears first. A periodic high-speed burnish brings the shine back, and after years of heavy use a light pass with fine diamonds restores the original finish without starting over. That is one of the strongest arguments for polished concrete in a business: the floor is refreshed, not replaced.
When Polishing Is the Wrong Answer
Polished concrete is not right for every slab. A floor that is heavily cracked, badly spalled, contaminated with oil deep into the concrete, or so soft it will not densify may never polish evenly. In those cases we will recommend a coating system or slab repair instead, and explain why, rather than polishing a floor that will disappoint you.
What Moves the Price of a Polished Floor
The biggest variables are what has to come off first and how deep you want to cut. Removing tile, mastic or an old epoxy adds coarse grinding passes, and full aggregate exposure takes far more diamond and machine time than a cream finish.
Room layout matters too. One open storefront polishes faster per square foot than a basement broken up by walls, posts and a stairway, where edges have to be worked with smaller hand grinders.
Our Step-by-Step Polished Concrete Floors Process
Step 1: Test Area and Written Scope
We grind a small patch of your slab to reveal its aggregate and repairs, then write a scope naming the exposure level, the grit sequence, the densifier, any dye and the final sheen. You approve the look on your own concrete before the full floor is started.
Step 2: Coarse Grinding and Repairs
Metal-bond diamonds flatten the floor and remove old coatings, then cracks, pits and joints are filled with a repair material that grinds along with the slab. Dust is pulled straight into an extractor at the machine, and doorways to the rest of the building are sealed off.
Step 3: Densify and Polish
The densifier is applied and allowed to react, and then the crew steps up through resin diamonds to the sheen you chose. Any dye goes in at the stage where it absorbs best, before the final passes lock it into the surface.
Step 4: Guard, Burnish and Care Plan
A penetrating guard is applied and burnished in, and the floor is cleaned and handed back the same day it finishes. You leave with written cleaning instructions and a schedule for burnishing based on the traffic your floor will see.
- 20+ Years Coating Floors
- Moisture Tested Before Quoting
- Free Written Estimates