Concrete Polishing, Grinding & Outdoor Services
From full-exposure aggregate grinds to sleek high-gloss polish - we handle residential floors, commercial fit-outs, and outdoor concrete across Auckland.
.webp)
.webp)
.webp)
Auckland projects completed
Of concrete polished across Auckland
Years experience
Take a look at our recent projects
With a full array of skills we have no problems whatever the project. Whether its residential commercial or retail our workmanship remains the same.
What our customers are saying
Hear from homeowners and businesses across Auckland who trusted Diamond Shine Concrete to transform their floors. Every project is owner-operated, and we take pride in delivering results that speak for themselves.
Auckland's Owner-Operated Concrete Polishing Team
Diamond Shine Concrete is an owner-operated concrete grinding and polishing company based in Auckland. We specialise in residential floors, commercial fit-outs, and outdoor concrete - from light salt-and-pepper grinds to full-exposure high-gloss finishes. Every project is quoted, managed, and delivered by Bowie and the team.
How Concrete Polishing Works
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.
Ready to transform your floor? Get a no-obligation quote from Auckland's concrete polishing specialists.
We beat any written quote from a licensed Auckland concrete polisher by 10%. Residential and commercial jobs. Free site assessments across all of Auckland.
Take a look at our latest articles & resources
Frequently asked questions
Common questions about concrete polishing costs, timelines, and finishes in Auckland.
The cost of polished concrete in Auckland depends on floor size, slab condition, and finish type. Most jobs fall between $60 and $130 per m2 + GST. Larger open areas (200m2+) can come in around $60 per m2, while detailed work in finished homes can reach $120-$130 per m2. We have a minimum charge of $2,250 + GST for small areas under 20m2. For a full breakdown by floor size and finish type, see our polished concrete pricing guide. Contact us for a free site assessment and accurate quote.
Mechanically polished concrete can last 20+ years with good maintenance. Because there is no coating to peel or replace, it outlasts most alternatives. It will dull over time with regular use - similar to timber or tiles - but a periodic rebuff restores the finish.
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.
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.
The best time to polish is before paint, and ideally before plaster (gib stopping). Once the house is weathertight and gib lined, the polishing team has a clean, open shell to work on - no painted walls to protect, no fresh stopping to damage, and no fixed surfaces to mask off.
The slab should cure for at least 28 days before grinding begins. Skirtings, kitchen, bathroom and joinery should always go in AFTER polishing - this is especially important for heavier grinds, where removing several millimetres off the slab means skirtings installed beforehand can end up looking like they are floating above the floor. Once polishing is complete, the floor needs to be properly protected during the remaining build stages.
Cracks:
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.
Damage:
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.
Joints:
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.
Yes. We offer free site visits and quotes across Auckland. We prefer to see the floor in person before quoting - this lets us assess the concrete condition, recommend the right finish, and give you an accurate price with no surprises. Get in touch to book yours.
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.
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.