Elevate your space with Diamond Shine Concrete

Our polished concrete services are more than just a flooring solution; they're a lifestyle upgrade. With high-quality materials and cutting-edge techniques, we ensure your floors are not only visually stunning but also a testament to craftsmanship and quality.

Hallway of freshly polished concrete floor done by the experts at Diamond Shine Concrete
Sleek kitchen with polished concrete floors reflecting light, wood cabinets, and modern design
About Us

Leading the way in Polished Concrete

Welcome to our owner-operated concrete grinding and polishing company based in Auckland, New Zealand. With a commitment to excellence and a passion for craftsmanship, we specialize in transforming concrete surfaces into stunning, durable floors. Whether it's for residential, commercial, or industrial spaces, we deliver high-quality results that exceed expectations. With a focus on affordability and customer satisfaction, we strive to provide the best value in polished concrete solutions. Contact us today to discover the beauty and durability of polished concrete floors.

Our Process

A simple, yet effective process


Planning before the start

Before we begin the process of polishing and grinding your concrete floor, meticulous preparation and planning are undertaken to ensure a flawless result that meets your specific needs and expectations.


Grind and Polish

During the polishing and grinding stage of concrete polishing, we employ state-of-the-art techniques and equipment to refine the surface, enhance durability, and achieve your desired finish that elevates the aesthetic appeal of your space.


Cleaning and Sealing

Our cleaning and sealing process for concrete involves thorough surface preparation and the application of premium sealants, ensuring long-lasting protection and a vibrant, easy-to-maintain finish.

Get a Free Quote

Ready to polish your concrete?

Get a quote today.

We strive to provide the most cost-effective polished concrete solutions in New Zealand. Our commitment is to beat any competitor's quote by 10%, provided that the quote is for a full mechanically polished concrete floor.

Graphic design of a grid that resembles grids of polished concrete

Frequently asked questions

Still got questions? Find quick answers to common questions about our polished concrete services.

How much does polished concrete cost?

The cost of polished concrete can vary depending on factors such as the size of the area, the level of polishing desired, and the condition of the existing concrete. In general, polished concrete can cost anywhere from $40-$120 per m2.

How long does polished concrete last compared to other flooring options?

Polished concrete is known for its durability and longevity, often outlasting many other flooring options. While the exact lifespan can vary depending on factors such as maintenance, traffic levels, and the quality of the initial installation, properly maintained polished concrete floors can last for decades.

Comparatively, some other flooring options have different lifespans:

  • Carpet: Typically lasts 5-15 years, depending on quality and maintenance.
  • Vinyl: Can last 10-20 years, but may need replacing sooner in high-traffic areas.
  • Hardwood: With proper care, hardwood floors can last 25 years or more.
  • Tile: Durable and can last 20 years or more, but may require regrouting or repairs over time.
  • Laminate: Generally lasts 10-20 years, depending on quality and wear.

Overall, polished concrete is often considered one of the longest-lasting flooring options available, making it a popular choice for both residential and commercial spaces looking for a durable and low-maintenance flooring solution.

Is polishing concrete dusty?

We utilize cutting-edge dust extraction technology, employing large industrial vacuums for our operations. While grinding concrete cannot be entirely dust-free, our systems are designed to capture the majority of dust particles, channeling them into dust bags for containment.

What stage of a build should i polish my concrete?

For projects requiring heavier aggregate exposure, we recommend grinding the concrete slab after it has been poured and allowed to cure for at least 21 days. This should ideally be done before the construction of frames begins.

For light to medium grinds and polishing, we suggest timing the process for when the house is weatherproof, typically just before or just after the gib installation.

After our polishing process is completed, it is crucial to protect the floor to prevent damage.

What happens with cracks, damage or control joint while my concrete is getting ground and polished?


Small cracks can be filled with a specially formulated color-matched patch filler to create a seamless surface.

For larger cracks, a more extensive repair may be needed, such as cutting out the damaged section and patching it with new concrete.


Surface damage, such as chips or scratches, can be repaired using patching compounds or fillers designed for concrete.

Deeper damage may require more extensive repairs, such as grinding down the surface to remove the damaged area and then patching it with new concrete.


Control joints, which are intentional cuts in the concrete to control cracking, will be filled with a  specially formulated color-matched patch filler to prevent the edges chipping while grinding. These can be later recut at the discretion or left in depending on the movement of the concrete.

Expansion joints, which allow for the natural movement of the concrete, can also be filled with a flexible material to maintain a smooth surface.

It's important to address cracks, damage, and joints before polishing to ensure a uniform and high-quality finish. Your polishing professional can assess the condition of your concrete floor and recommend the best approach for repairing and preparing it for polishing.

What is polished concrete?

Polished concrete is a process that involves grinding and polishing a concrete surface to achieve a smooth, glossy finish. It is commonly used as a flooring option in both residential and commercial spaces.

What are the benefits of polished concrete?

Some benefits of polished concrete include its durability, low maintenance requirements, and aesthetic appeal. It is also environmentally friendly and can help improve indoor air quality.