Jul. 08, 2024
Hardware
Leading Diamond Tools Product Page
Written by
Tom Grupa
December 7,
Polished concrete floors cost $3 to $5 per square foot for a basic design or $5 to $15 per square foot for multiple colors, patterns, scoring, and sealing. Residential polished concrete flooring costs $600 to $3,200 for a patio, $1,000 to $4,500 for a driveway or garage, and $2,000 to $8,000 for a basement.
Polished concrete floors cost - chartPolished Concrete Floors Cost Per Square Foot Level Cost Per Square Foot Description Basic $3 &#; $5 Minor prep work, one layer of stain, grinding and polished to moderate shine Mid-range $5 &#; $8 Minor repairs, in-depth grinding, two colors of stain, scoring, sealing, and a higher sheen. High-end $8 &#; $15 Surface repairs, custom designs, patterns, stencil work, staining, scoring (saw cuts), faux finishes, multiple colors, sealing, and polishing.Polished concrete is used inside and outside the home due to its affordability, durability, and resiliency. It's an excellent option for kitchens, bathrooms, basements, patios, driveways, and garages.
Polished concrete flooring cost by residential project - chartResidential Polished Concrete Floors Cost Area Average Cost Bathroom $200 &#; $600 Kitchen $500 &#; $1,800 Patio $600 &#; $3,200 Garage $800 &#; $4,500 Driveway $1,000 &#; $5,000 Basement $2,000 &#; $8,000Benefits of polished concrete include:
Lifecycle cost up to 60% lower than other floor types
Does not harbor allergy dust, mold, mildew, dust mites, or other allergens
Durable, low maintenance, versatile, and increases a home&#;s resale value
Wide variety of colors, patterns, and design options
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The average cost to polish existing concrete floors is $3 to $15 per square foot, depending on the job size, prep work, and complexity. Concrete surface repairs and design, stamping, staining, and sealing work can add $1 to $10+ per square foot to the overall cost.
Cost To Polish Existing Concrete Floors Task Cost Per Square Foot Description Remove Existing Flooring $0.50 &#; $3.00 (Optional) Includes removal and disposal Light Surface Prep Included Removing glue, dirt, grease, coatings, or blemishes Concrete Repairs $1.00 &#; $3.00 (Optional) Fill in cracks, remove remaining epoxy/glue Screed / Overlay $2.00 &#; $5.00 (Optional) Resurfacing creates a level, smooth, and protective surface Underlay $2.00 &#; $5.00 (Optional) Cement board underlay for an on-grade or above-grade floor Grinding $1.00 &#; $4.00 Sands and prepares the concrete over a single pass Polishing $2.00 &#; $6.00 Hones the surface to a shine over multiple passes Designs, Scoring, Staining $2.00 &#; $25.00 (Optional) Color(s), saw cuts, patterns, stencil work Sealing $2.00 &#; $4.00 (Optional but recommended) Protects against stains, acid, and chemicals, offers skid and water-resistance. Living and dining room with concrete flooring that is stained, polished and sealedSmall, tight areas may require polishing by hand, which costs more per square foot. More square footage allows for bigger machinery to work faster and is easier to polish with consistent results. Other labor-intensive factors that can increase the cost are:
Close, narrow walls
Doorway openings and room-access challenges
Odd-shaped floors
Basements
Built-in furniture
Above-grade floors
Light surface preparation, such as removing glue, dirt, grease, coatings, or blemishes, is typically included in the estimate. Extensive concrete surface repairs like fixing holes, cracks, or gouges cost $1 to $3 per square foot.
Cracks need to be filled with epoxy and sealed before polishing.
If the floor is in very poor condition, too wavy, needs extensive patching, is extremely porous, or is actively heaving, it may not be a good candidate for polishing and may need to be removed and re-poured.
Removing existing flooring costs $0.50 to $3.00 per square foot for labor and disposal. Old flooring removal costs depend on the type of existing flooring and the effort required to remove it.
Remove Existing Flooring Material Cost Per Square Foot Carpet Removal Costs $0.11 &#; $0.56 Hardwood or Engineered Wood Removal $1.50 &#; $4.50 Stone, Ceramic, or Porcelain Tile Removal $1.50 &#; $4.00 Vinyl or Linoleum Removal $0.50 &#; $1.00The cost to grind a concrete floor is $1 to $4 per square foot. Grinding or sanding concrete removes adhesives and curing agents, opens up the pores, removes the smooth look, and flattens the surface. Then, polishing hones the surface to a shine for $2 to $6 per square foot.
The grinding and polishing process uses the same equipment, just with different pads. The amount of grinding and polishing determines the sheen and gloss of the concrete floor.
Grinding is typically a single pass, and polishing may take four passes.
A high-gloss finish takes longer and costs more.
*Levels of polish measured in Distinctiveness of Image (DOI). Polishing to a high gloss does not make the floor more slippery.
Residential home entry hall with polished concrete floorsPolished screed flooring costs $2 to $5 per square foot, depending on the condition of the concrete. Screed is a thin concrete overlay poured over the slab to create a level, smooth, insulating, durable, and protective surface necessary for grinding and polishing.
Screed is made of the same mixture of concrete, but with a finer aggregate that creates a smoother texture.
Staining concrete floors costs $5 to $15 per square foot on average, depending on the job size, prep work, number of colors, and complexity.
A simple stain costs $2 to $4 per square foot.
Multiple colors or layering, saw cuts, and custom patterns cost $10 to $25 per square foot.
Any color of concrete floor is obtainable with dyed, stained, or colored ready-mix or colored overlay concrete options.
Color or design elements can be added before the concrete pour or after the concrete has hardened.
Stamped concrete costs $5 to $12 per square foot and is performed when the concrete is poured. Scored concrete to create tile, natural stone, or patterned shapes costs $1 to $2 per square foot.
Stenciled, Stamped & Scored Concrete Floors Cost Option Cost Per Square Foot Stencil Work $1 &#; $10 Layering Staining $18+ Acid Etching $2 &#; $7 Stamping $5 &#; $12 Scoring $1 &#; $2Sealing concrete floors costs $2 to $4 per square foot for labor and materials. The sealant materials alone cost $0.20 to $1.30 per square foot. Polished concrete does not require sealing, but it protects against stains, acid, and chemicals, offers skid resistance, and more water resistance.
The type of post-seal polish, buffing treatment, and cleaning required to maintain the seal depends on if the sealant is topical or penetrating.
Modern living room with polished concrete flooring and sliding glass doorsInstalling an above-grade concrete floor over an existing subfloor requires a cement-board underlayment or structural reinforcement. Installing a cement underlayment adds $2 to $5 per square foot to the total cost of the polished concrete floors.
For a residential second story or higher (elevated slab), an engineer or architect must assess the foundation, bearing walls, and support beams to ensure they can support the weight of the above-grade floor. Hiring a structural engineer costs $100 to $220 per hour.
For smaller spaces like a bathroom, the home&#;s structure is sufficient to support the weight of the floor with only a cement-board underlayment.
Adding polypropylene fibers to the concrete mix helps prevent cracking.
Increasing the fly ash content in the concrete mix increases the durability and adds a marble-type finish to the floor.
Aggregates sourced from quarries, oceans, rivers, or recyclables achieve an interesting and organic pattern or design when exposed in polished concrete.
Adding pigment to the concrete mix (structural color) offers more color consistency than stained concrete, although adding color after it's poured can produce dramatic effects. Adding metal oxides achieves a more subtle structural color.
Water-based stains offer predictable color and a wide shade variety, while traditional acid etching stain does not.
Concrete dyes offer many saturated bright colors and dry faster than staining, but they need a UV-stable sealer to keep from fading. Tinted concrete sealers are another cost-effective way to add subtle shades of color, but the color wears off as the sealant does.
Concrete floors can have inlay tiles or divider strips added, be stamped to mimic stone or paved brick, and be stenciled.
Adding saw cuts or etching to colored concrete mimics a tile floor.
The cost to replace flooring varies when comparing polished concrete vs. stained concrete, tile, hardwood, epoxy, carpet, and other flooring materials.
Cost of Polished Concrete Floors vs. Alternatives Material Cost Per Square Foot Features Polished Concrete $3 &#; $15The cost of polished concrete floors is $3 to $12 per square foot, while tile installation costs $10 to $50 per square foot. Polished concrete floors are water-resistant and can be stamped to look like most tiles. Natural stone, like slate, offers more skid resistance than polished concrete.
Cost of Polished Concrete Floors vs. Tiles Polished Concrete Tiles $3 &#; $12 per square foot $10 &#; $50 per square footPolished concrete floors cost $3 to $12 per square foot, while hardwood flooring costs $7 to $25 per square foot.
Polished Concrete vs. Hardwood Cost Polished Concrete Hardwood $3 &#; $12 per square foot $7 &#; $25 per square footPolished concrete floors cost $3 to $12 per square foot, while epoxy flooring costs $4 to $10 per square foot.
Polished Concrete vs. Epoxy Cost Polished Concrete Epoxy $3 &#; $12 per square foot $4 &#; $10 per square footPolished concrete floors cost $3 to $12 per square foot, while carpet installation costs $2 to $5 per square foot.
Polished concrete is more water-resistant, has lower maintenance, is significantly more durable, and has more design options.
Carpet is affordable, comfortable, and warm.
Contact us to discuss your requirements of diamond concrete grinding tools. Our experienced sales team can help you identify the options that best suit your needs.
Further reading:Polished concretes' durability, maintenance, versatility, cost, and sustainability also come with some negatives.
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Polished Concrete Floors Pros and Cons Pros ConsPolished concrete is also gaining popularity on walls, countertops, and worktop benches.
Other Polished Concrete Costs Item Cost Per Square Foot Polished Concrete Walls $10 &#; $60 Polished Concrete Countertops $60 &#; $130 Cement Laminate Floors $2 &#; $8Cement laminate floors can look like concrete floors but are durable, energy-efficient, fire-resistant, and less expensive than poured concrete.
Polished precast concrete walls or block panels cost $10 to $60 per square foot, depending on the wall size, shape, and thickness, and whether it's on grade or above. An alternative is adding concrete micro-topping to vertical surfaces (drywall) for $1.50 to $2.00 per square foot.
Plastering walls with a concrete mix and then polishing can be cheaper and have more longevity in cold climates. Adding an acrylic sealer is optional.
Concrete veneers and precast block and wall panels are pre-made and install on top of the substrate floor or walls. Veneer adds structural strength, but it's thinner and lighter than overlay and does not bond as well. Specific sizes, colors, and textures can be customized.
Polished concrete countertops cost $60 to $130 per square foot to install, which is similar when compared to granite countertops cost of $50 to $200 per square foot. Prices depend on the design, colors, gloss polished level, edging, stenciling, stamping, and inlays.
Polished Concrete Countertops vs. Granite Cost Polished Concrete Granite $60 to $130 per square foot $50 to $200 per square foot More design options, patterns, shapes, colors Different grades, thicknesses, and bevels, and colors Stain-resistant when sealed Not stain-resistant when sealed Can develop hairline cracks Extremely durable, unlikely to crackPolished concrete worktops or benchtops cost $55 to $60 per square foot, about the same as some granite or marble countertops. Polishing prices depend on the size, color, level of shine, shape, edge, and design. Some worktops may require structural support, which increases costs.
Commercial spaces cost less at $2 to $8 per square foot since a larger crew and machinery are onsite for quicker job completion, and there are fewer edges in large open spaces.
A polished concrete basement floor costs $3 to $12 per square foot or $2,000 to $8,000 on average.
By polishing the basement floor, the substrate, although dense, remains breathable, and the reduced moisture vapor eliminates mold and mildew growth.
Polishing concrete also adds brightness to a basement if highly honed.
A polishing a concrete patio or driveway costs $3 to $8 per square foot, depending on the size, complexity, number of colors, and sheen. Outdoor polished concrete requires ongoing maintenance to retain its look and lengthen its lifespan.
In addition to polishing, other options to treat floors include griding and sealing, burnishing, and epoxy coating.
Treated Concrete Floors Cost Polished Grind & Seal Burnished Epoxy Max Shine Level Very high Very high High Extremely high Durability Very high Medium Low-medium Low-medium Maintenance Refurbish every 10 years - can last a lifetime Reseal every 1-2 years if high traffic &#; 3-5 years normally Reseal every 1-2 years if high traffic &#; 2-3 years normally Can last 15-20 years, depending on traffic Cost (SF) $3 &#; $12 $3 &#; $7 $3 &#; $12 $3 &#; $7 Needs Sealing Optional but recommended Yes Yes No, epoxy is sealant Design Variety High High High High Labor Intensive Yes, depending on desired finish Medium Low Low Drying Time None if no sealant used 3-8 days dependent on sealant product used 3-8 days dependent on sealant product used 24 hours normally ProsBurnished concrete resembles polished concrete but is not as durable and not considered a high-quality finish. However, burnished floors are easier to install, less expensive, and still shine.
Burnished concrete can be inconsistent, and flaws in the floor may be highlighted if improperly installed.
Polished concrete, also called bonded abrasive polished concrete or mechanically polished concrete (MPC), is an affordable alternative to other floorings. The concrete will be stained, grinded, polished, and sealed to create a high-gloss look.
Any new or existing structurally solid concrete floor can be polished. However, existing concrete floors require surface preparation and cleaning before polishing. New concrete floors that will be polished perform better with a thicker pour but don't require a special mix.
Polished concrete does not need to be sealed, but it may stain and show watermarks easily. Sealing polished concrete provides extra protection, which requires less maintenance over time. Some sealants might also change color with exposure to UV light.
Polished concrete floors last 20+ years or even a lifetime if maintained properly. Polished concrete floors last longer if refurbished every 15 years, depending on the age, condition, and environment.
Polished concrete floors are no more slippery than any other hard, flat flooring. Mechanically polished concrete is slip-resistant, however, most flooring options are slippery when wet.
Polished concrete floors are waterproof. During installation, grinding and sealing create a protective surface that does not absorb water.
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Polished concrete flooring is extremely strong and does not chip or scratch easily.
DIY polished concrete floors cost $1,000 to $2,400 for materials and rental equipment. Concrete polishing costs depend on the size of the floor and the type of finish.
DIY Concrete Polishing Cost Item Average Cost Grinder $450 &#; $1,280 Mini Grinder $80 &#; $90 Vacuum $100 &#; $200 Knee Cart $20 &#; $70 Diamond polishing pads and discs, densifier, guard $350 &#; $750 Total $1,000 &#; $2,400You can rent wet or dry floor polishers for dust control.
If your rental polisher does not reach the edges of your room, you should also rent an edger.
Pour the concrete slab and allow it to cure for 28 days.
Sweep the floor, clear debris, and find areas that need repair.
Test the hardness of the floor to select the correct metal abrasives. Test at least 3 areas to get an accurate average with a MOHS Concrete Hardness Tester.
Grind the floor with an appropriate level abrasive grinding pad. Go slow, making sure you overlap slightly to avoid bare patches.
Fill or repair cracks, holes, or scratches in the floor. The coating must be removed before repairing the floor.
Grind with the next level of grits, going from heavy to light. Monitor how much floor surface is being removed and keep the floor level.
Continue with the metal bonded discs, using finer and finer grit until you get the concrete to the desired level of smoothness.
Apply a liquid concrete densifier to harden the floor and prepare it for the final level of polishing. Ensure that the densifier does not puddle while it dries; else, it will cause stains.
Take final polishing passes, with a proper level of grit, until reaching the desired level of shine.
Apply sealant, if desired.
Specialized concrete floor contractors typically have more expertise and experience than general contractors. Experienced contractors ensure the floor is properly floated, and the aggregate evenly distributed.
When choosing a concrete flooring contractor, be sure to:
Get three to five in-person estimates to compare.
Ask for recommendations from family, friends, and neighbors.
Read reviews and check out their previous work on HomeGuide and Google.
Check to verify their licensing and insurance is valid and up to date.
Hire a company that has been established for at least five years.
Ask for an itemized contract and warranty in writing before the work begins.
Avoid making large payments up front and never pay in full or in cash. Come up with a payment schedule for work completed instead.
Are you licensed, bonded, and insured?
What experience do you have with polished concrete flooring?
Can you provide references with contact information?
Do you know proper polishing techniques?
Will you be using subcontractors?
Do you offer a warranty or guarantee?
Is producing a sample of floor choice included?
What is and is not included in the estimate?
How do you handle damages if they occur during the installation?
Concrete Grinding and Polishing System from Gap Power
Edco Grinder Lineup
What is the difference between grinding concrete and polishing concrete?
Concrete grinding is for removing unwanted coatings or concrete features. Grinding is nearly always a step you do before another process. For example removing old adhesives in order to get down to the surface before installing tile, paint, epoxy, linoleum or another floor covering...............or, concrete polishing. The purpose of grinding is to get the concrete surface back to it's original condition after pouring and troweling.
Concrete Polishing is the process of making concrete "shine", i.e. the process of beautifying concrete. It is achieved by using finer and finer diamond polishers until the desired look is achieved, then "locking it in" with densifiers and sealants. Polishing is often followed up with staining in order to achieve patterns, artwork, company logos etc.
Can one machine do both grinding and polishing?
Yes. You can use a machine to grind, then remove the grinding attachments and install polishing attachments. This is an easy process using simple tools and takes only a few minutes.
Small Floors.
For - sq ft or less the Edco single and double head concrete grinders do an excellent job of prepping a concrete floor at a reasonable price. Diamond dots, matched to the type of concrete, provide excellent &#;dirty&#; concrete removal and preparation for paints and epoxies. Strip Serts, sharp carbide inserts on a holder are an excellent way to remove mastic style coatings (glue, black gunk, etc&#;) Spreading sand is an integral part of removing mastic coatings with strip serts. The mastic balls up on the sand and prevents the grinding head from getting caked with the mastic and losing its effectiveness. A good way to know if strip serts will work on your job is to try and cut the mastic with a utility knife or scrape it up with a putty knife; if you can do this, strip serts on an Edco Grinder will do the job.
Polishing Pucks on Lavina
Big Jobs.
For floors over - sq ft the Lavina Propane 25GX Planetary Grinder and electric Ermator Vacuum Kit is the way to go. This Grinding Packaged comes ready to go in a 5x10 Enclosed Trailer. Because of the speed and weight of this grinder it is critical to use the free loaner Mohs Hardness test to check your concrete to determine which bond of diamond tooling is appropriate for your concrete.
A typical grind for a coating will be with 30 Grit diamonds, dropping down to 14 Grit if you need more of a profile for some industrial floor epoxies.
Lavina w/ Included Ermator Vacuum
How Can I Remove Oil Stains From A Concrete Floor?
The Oil Remediation System from Ameripolish is a great addition to floor preparation to remove oils so your paint coating adheres properly. In some situations like shop floors, a simple 30 Grit grind and seal (no paint or epoxy coating) is sufficient to restore and preserve a floor making it durable and easier to maintain/clean.
What Can I Expect To Pay Per Square Foot To Grind A Concrete Floor?
Approximate cost per square foot for a Basic diamond grind (not including sealers or coatings): $0.30/sq. ft. when doing sq. ft. or $0.23/sq. ft. for sq.ft.
An example of a diamond grind for a shop floor including the Oil Remediation system, a heavy duty sealer, sq. feet, pricing would be approximately $0.87 per square foot or $0.52 per square foot for square feet.
What Can The Lavina Machine Do?
The Lavina Grinding package is also an excellent polishing system. To polish an existing concrete floor on average you&#;re going to start with 30 Grit diamonds, the same as doing a standard grind before a coating. 70 Grit and 120 Grit diamonds follow before moving to 100 Grit transitional pucks with Velcro backing then proceeding to 200 Grit polishing/honing, then 400 Grit, 800 Grit; up to Grit.
Most of your time spent doing a polish is in the diamond tooling (30-120 Grit). It&#;s extremely important to work completely through each of the steps and vacuum or use an auto scrubber in between to remove any grit from the previous step. Its also important to move slowly, only as fast as the tooling/concrete will allow. A good gauge of speed is seeing a half inch in between the dust lines left by the grinder from the circular motion of the planetary.
Finished Floor
Densifying Concrete.
Densifying the surface is important to harden the surface of the concrete to help it maintain the high level of shine polishing will produce. Densifying is typically done around 200 Grit. Make sure the surface is cleaned thoroughly then simply use a pump style sprayer to apply the densifier and let dry for around 15 minutes.
Concrete Sealing After Polishing & Densifying.
After reaching your desired shine, apply a high gloss sealer for maximum shine or the heavy duty sealer for a durable finish then finish off with a burnisher or burnishing pads on the Lavina grinder.
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