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How Much Does a Polished Concrete Floor Cost?

Last Updated May 7, 2018 · Written by Rob Schneider


How much does a polished concrete floor cost and why is it a great home improvement? That will depend on the type of polished concrete floor you want and the area that needs to be covered. This guide will tell you everything you need to know about polished concrete floors and their costs.

  1. What is concrete polishing?
  2. What affects the cost of polished concrete?
  3. How much does a polished concrete floor cost?
  4. Choosing a concrete polishing service

What is concrete polishing?

Concrete polishing can take many forms. The simplest type of concrete polishing is the "grind and seal" process. First the concretor will sand a floor and then seal it. It is the least expensive and can look beautiful.

Aggregates can be added to the mix and then sanded with diamond cutters. This is often called honed concrete and can be more expensive than a simple grind and seal. Acid stains can give a polished concrete floor an interesting look because the acid give the floor different swirling colours that resemble marble. Colour can be added and patterns can be created.

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Sometimes concrete polishing includes an epoxy coating in either a clear seal or colours. Whatever type of polished concrete floor you get, the first step is to polish the concrete and it can have a matte, semi-gloss or gloss finish.

Concrete polishing can be done on any concrete surface or if you're building, concrete polishing can be done on a house slab. If you have an existing concrete slab, a skim layer is added and the floor can be polished to perfection.

Concrete polishing can also give a non-slip surface, which is ideal in any home and it is used in shopping centres and other places where people congregate.

What affects the cost of polished concrete?

Concrete polishing depends on several factors and the cost can be between $50 and $100 per square metre.altSome factors that will determine the price include:

  • The degree of polishing required
  • The size of the floor
  • Material requirements
  • Design complexity
  • Condition of the existing floor
  • Moisture-vapour transmission

In general, a larger floor will cost less per square metre than a smaller floor. Materials may include dyes, epoxy coating or a metallic coating. The materials will add to the cost. A complex design is harder to do than a simple design and that will increase the cost, too. If repairs are needed, it will cost extra and moisture-vapour transmission requires a remedy, which will cost extra.

Other factors that may add to the cost include removal of existing flooring and preparation of the slab before adding a skim coat. Some floors may have to be levelled, which will also add to the cost. A concreter who specialises in concrete polishing will first inspect a site and then give a quote based on their observations.alt

A concrete overlay can be more expensive than polished concrete on a new slab. Prices will vary according to the condition of the existing floor, but while a polished concrete floor of 30m2 might cost $3300 to $3600, a concrete overlay might cost up to $10,500. That price is at the high end of the scale and may include removing old flooring; restoring the concrete slab; and using treatments to prepare the existing slab for a concrete overlay.

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How much does a polished concrete floor cost?*

Depending on the technique used, polished concrete floors can be relatively inexpensive or more expensive. Some basic costs for concrete polishing on a 30m2 floor may be:

  • $2500 for a surface polish
  • $2400 for a grind and seal
  • $2000 for epoxy coating
  • $3500 for a more polished surface
  • $3300 for a black, grey or white surface

These are approximate costs only and the costs may be higher depending on the factors listed above. On the high end of the scale, the costs could be double those listed above.

Epoxy coating is an extra cost and the epoxy comes in a variety of colours, so you may need a surface polish first and then an epoxy coating, which will cost $4500 in total. This cost is for a plain colour only. A pattern will cost extra and the cost will depend on the complexity of the pattern.

Epoxy coatings also comes in a "flake" coating, which mixes colours. The cost of a flake finish depends on the size of the floor:

  • 25m2 might cost $72m2
  • 50m2 might cost $50m2
  • 100m2 might cost $38m2

Metallic epoxy coatings are also available.

An epoxy finish is more than just epoxy applied to a concrete floor. The epoxy and hardener come in contact with the concrete and create a strong bond that is resistant to wear and heavy impact.

Choosing a concrete polishing service

It is important to remember the costs above are estimates only, based on prices by individual suppliers. To get an accurate quote, use our online quote system and get three quotes from concretors in your area who specialise in concrete polishing. The quotes may vary in price, but also ask for examples of their previous work. You want to know the concreter you choose can give you the finish you want on a polished concrete floor.

When choosing a concrete polishing service, make sure the service is:

  • Licensed
  • Insured
  • Able to give a written quote after inspecting the site
  • Able to give references
  • Willing to show you examples of their previous work

To find out the licensing requirements in your state, look at Licensed Trades: Concreters and scroll down to your state. Insurance is a must and any reputable company will carry insurance. A written quote after the concreter has inspected the site should be a firm quote. References and photos of their previous work will tell you if they are competent, professional and can give you the type of polished concrete floor you want.

You also want to know how long a job will take to complete. A professional service will give you an estimate based on the size of the job, but concrete polishing is not a one day job even on smaller floors. Depending on the technique used, it can be a fairly long job:

  • 30 grit and 60 grit sanding is required
  • Grout is applied and 120 grit diamond sandpaper is used
  • A hardener is applied
  • Excess hardener is removed
  • The floor is polished with 400, 800, 1500 and 3000 (for full gloss) grit sandpaper
  • A clear or tinted sealer is applied

While concrete polishing can be a slow process, you will be delighted with the results and polished concrete floors have a tougher finish than many other types of flooring. That is why they were originally used in shopping malls and other places with heavy traffic.altAlso remember that concrete polishing isn't just for interiors. A patio can have a slab polished and concrete polishing is even done in garages and on driveways. Wherever you want a smooth, easy to clean and beautiful surface, you can have it polished. Because non-slip polished concrete is available, it can be done in a patio or a driveway and you needn't worry if the surface becomes wet. It will remain a non-slip surface and you will have a tough and beautiful patio floor or driveway.

*Costs and prices in this article are indicative and should only be used as a guide. They also vary locally and are subject to market forces.

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