Frequently Asked Questions

How is Polished Concrete done?

A: Diamond discs are mounted to an 900lb. grinder. These rough grits remove imperfections of the floor. The concrete is scratched up over and over using the diamond blades (like using coarse sandpaper on a piece of wood). Concrete stock is taken from the top to expose the harder and better concrete underneath. This is done over and over in successive grits and this process refines the concrete. Each scratch pattern is being replaced by finer and finer scratch patterns, until all scratches disappear. Then finer grits are used to create a marble like shine. The process is usually an 8-12 step process beginning with 30 grit diamonds and ending with 3000 grit diamonds.

How long will it last?

A: As with any flooring, you will need to take care of the floor. If the floor is maintained, polishing is a permanent process. There’s no wax, epoxy, acrylic, or any other shiny coverings applied that will eventually fail. When our company is finished the result is a bare concrete floor that has been permanently polished. In heavy industrial, commercial or institutional use, an inexpensive re-polish may be needed years down the road (depending on your maintenance).

Q: What maintenance is required for polished concrete?

A: The correct pads and a walk behind scrubber…nothing unusual. If you don’t owna walk behind, moppingand a buffing machine would work. See our section on maintenance in the website.

Q: Does polished concrete have any harmful VOCs?(Volatile organic compounds)

A: No. This process is completely eco-friendly and perfect for green construction projects.

Q: Where are people using polished concrete?

A: Warehouses, Restaurants, Schools, Retail Stores, Manufacturing, Residential, Auto Showroom and Service Areas, etc.

Q: What about stains on polished concrete?

A: Cleaning is easy. Just mop up the mess as soon as possible. Some oily stains if ignored will soak into the pores but will come back out over time. As with any flooring, the longer you leave the mess, the more remedial work may be required to get the floor back into shape. We do protect the floor with sealers. However, this is not an excuse to be negligent.

Q: Do forklift tires mess up polished concrete?

A: No. Marks wipe off easily with soap and water.

Q: What about 75-year-old concrete that is pitted, well worn, or has had coatings applied?

A: Not every floor can be polished. Some are better candidates than others. We don’t know until we do a test patch (sample) and see how it turns out.

Q. What makes a concrete slab a poor polishing candidate?

A: Not every floor can be polished. Some are better candidates than others. We don’t know until we do a test patch (sample) and see how it turns out.
A: If the slab is a soft slab (hardness test under 6) the more likely there will be issues. The softer the slab the harder it is to get a good shine on the floor and honestly the easier the floor will deteriorate once its polished. As a general rule the harder the concrete the better it is for polishing.
Also, If the slab had tile and grout or VCT on it. Ghosting will appear once it ispolished. You will see the lines on the polished concrete from the previous flooring. This cannot be ground off because the effects are through the entire slab. This can be unslightly on the finished product. See picture.

Q: Can the shine be destroyed on a polished concrete floor?

A: Yes, but it is not easy. If you pour muriatic acid on the floor, it will etch. Strong acids will destroy the shine. Etched areas are easily repaired…we can show you how to do it yourself.

Q: During construction when should we plan the concrete polishing?

A: It depends. Edgework costs money. Sometimes it pays to do 6 of the 8 steps before the “build out” and then do the final 2 steps just before completion. Edgework controls the timing of our service.

Q: Is it good in schools?

A: It’s the perfect solution. It’s beautiful yet it’s durable and easily maintained.

Q: Where do you not recommend it in a school?

A: Offices and music rooms because of acoustics, and bathrooms because of the potential of urine etching.

Q: If a re-polish is needed in 5 or 10 years, what is the cost?

A: Typically,$0.50 to $1.00 per a square ft.

Q: Is it dusty or messy?

A: We use state of the art equipment to help control the dust. With that said, you can expect some dust. The only way to ensure no dust is to grind wet.

Q: What’s the #1 reason people polish concrete?

A: Residential…for its beauty, artistic options, and functionality.
Commercial & Retail…for its trendy upscale look, cost and brighter facility
Institutional…for its reduced maintenance and durability.
Green Construction…because it is eco-friendly.

Q: Do you apply a sealer?

A: Yes. We want to make sure the floors are protected so they will continue to look like new.

Q: Are all concrete polishers the same?

A: Absolutely not. If corners are cut, your floor will not look good 5 years from now. “Fly by Nights” are entering this business everyday and damaging the industry by taking shortcuts and delivering disappointing results.
As an emerging industry, concrete polishing is experiencing dramatic changes while advancements in equipment and techniques are constantly being introduced. Faster, easier, cheaper methods of polishing are showing up
almost monthly bringing with it budget priced diamonds and densifiers that prove to be unsatisfactory in performance. At the same time, contractors offer their services when in fact, they do not have the knowledgeor proper experience in methods and materials. Many will not grout the floor or will have very limited success in doing so. Some will skip steps, use light weight equipment or try and pass off the mechanical polish with a chemical guard polish.

Do you do samples or mockups?

We always insist on doing a mock up for clients. We do ask them to pay a nominal fee for the service as it typically takes a full day to do an area. The fee typically is $400-$500. If the client moves forward with the project we absorb the cost of the mockup.

Do you offer a Warranty?

Yes, we off a three-year warranty. We also do a 3-monthevaluation and then 6 months. We want to collect data regarding the shine and make sure the standards are being upheld.

What is the typical cost for polished concrete?

The cost is very dependent upon the conditions of the floor, whether or not there is an existing coating down and how much remedial work is necessary as well as the number of corners and edges that will have to be hand polished. With that said, most of the projects end up between $3.75 and $6.25. The price can exceed this amount of the conditions and if the client is desiring complex designs and colors.
Cost should also be measured over time. Below is a chart of various flooring options over 20 years. You can see the HUGE advantage of polished concrete.

All costs per square foot

  Installed Annual Maint. Average Life in Years Cost to Replace Total Expense
20 years
Cost PSF / Year
Cost* 20 years Year
Vinyl Sheet 2.72 1.39 9 3.43 38.14 1.91
Vinyl Tile 1.23 1.47 15 1.6 32.76 1.64
Ceramic Mosaic Tile 6.48 1.22 20 30.88 1.54
Quarry Tile 5.78 0.58 20 30.18 1.51
Cement Terrazzo 8.5 0.46 20 20.1 1.01
Granit-Glaze 6.5 0.46 20 15.7 0.79
Polished Concrete 3.98 0.17 20 5.9 0.3

*Comparative costs based on 10,000 square feet. Your costs may vary based on square footage, preparation needs, coloring, etc.

What’s the Next Step?

Pick up the phone and call us at 812-491-8453 or send us your contact info and schedule an appointment.

How Do I Get Started?

812-491-8453

Pick up the phone and call us

Book Appointment

info@concretepolishingevansville.com

Locations

4928 Temple Ave. Evansville, IN 47715

About Us

Deb and I started polishing natural stone over ten years ago with our other business Surface With A Smile. While serving our residential clients we soon noticed people interested in using their existing concrete slabs for staining, coatings or polishing.