Concrete Polishing and Grinding Auckland
Auckland's specialist concrete polishing and grinding team - residential and commercial. Owner-operated, Auckland-wide, with a 10% price beat guarantee on every job.
Concrete Polishing and Grinding in Auckland
Concrete polishing and grinding is the process of using heavy-duty diamond tooling to refine a concrete slab into a finished floor. The result is a durable, low-maintenance surface that lasts for the life of the building - with no coatings to peel, chip, or replace.
Diamond Shine Concrete specialises in concrete polishing and grinding across all of Auckland. We work on residential homes at every stage - new builds, carpet and tile removals, and restoration of existing floors. We also handle commercial jobs across the city: retail fit-outs, warehouses, industrial facilities, and hospitality venues.
Every job is owner-operated. Bowie quotes every job and runs every job, which means the quality you see in our project photos is the quality that shows up on your site.
Types of Grind
- Full aggregate exposure, where the concrete is ground down to reveal the aggregate within the mix, creating a textured, terrazzo-like finish.
- Partial aggregate exposure, where the grinding reveals some of the aggregate, providing a balanced look between the concrete and the exposed aggregate.
- Salt and pepper finish, where only a minimal amount of grinding is done to remove surface blemishes, resulting in a subtle, lightly polished appearance.
Cream or natural polish in concrete polishing refers to a smooth, slightly glossy finish achieved by refining the surface with fine grit diamond abrasives. No grinding is done in this process
Two popular named finishes
Grind and Seal - The slab is ground to the desired level and then sealed with a penetrating or topical sealer. A fast, cost-effective option well suited to garages, workshops, commercial floors, and outdoor covered areas.
Mechanically Polished Concrete - The highest grade of polished concrete. Ground through multiple diamond tooling stages and hardened with a concrete densifier. A hard, reflective surface that will not peel or flake - because there is no coating. The standard for commercial floors and high-end residential.
Types of Polish
A polished concrete floor can exhibit a range of sheen levels, from matte to high gloss, depending on the desired aesthetic and functional requirements. A matte finish provides a subtle, understated look that is smooth to the touch and has a low level of light reflectivity. In contrast, a high-gloss finish offers a reflective, mirror-like surface that enhances the brightness of the space and creates a more luxurious appearance. Between these extremes, various levels of sheen can be achieved, allowing for a customized finish that suits the specific design goals of the project.
Residential and Commercial Concrete Polishing Auckland
From family homes to large-scale commercial fit-outs, we polish concrete floors across Auckland for every type of project.
Residential Concrete Polishing
We work with homeowners at every stage of the floor journey - new builds, carpet and tile removals, garage transformations, and restoration of existing polished floors. If you are removing carpet and wondering whether the slab underneath is worth polishing, the answer is usually yes. Most residential slabs can be polished to a high standard, even with tack strip damage or old adhesive.
- New build slab polishing (coordinate with your builder)
- Polish after carpet or tile removal
- Garage floor transformation
- Restoration of dull or patchy floors
Commercial Concrete Polishing
Commercial concrete floors handle heavy foot traffic, trolleys, forklifts, and daily cleaning chemicals. Mechanically polished concrete handles all of it - without a coating that can chip, peel, or need replacing. We work with retail fit-out consultants, facilities managers, warehouse operators, and hospitality venues across Auckland.
- Retail stores and supermarkets
- Warehouses and industrial facilities
- Hospitality venues and restaurants
- Office floors and fit-outs
Our commercial finishes can be tailored to your slip resistance requirements. Ask about options when you get your quote.
Take a look at our recent projects
Here customers can view some of our recent projects by visiting our website's gallery or portfolio section. Here, you can browse through images showcasing the quality and variety of work we've completed, gaining inspiration and insight into the possibilities for your own projects.
How Concrete Polishing Works
Every concrete polishing job - residential or commercial - follows the same sequence. Here is a condensed version. Full detail is on our Process page.
Frequently asked questions
Still got questions? Find quick answers to common questions about our polished concrete services.
Maintaining polished concrete is relatively easy. Regular cleaning with a neutral pH cleaner and occasional resealing can help keep the surface looking its best.
- None (Cream Finish): A cream finish may be more susceptible to wear and staining, as the surface is smoother and less textured. It may require more frequent maintenance to keep it looking its best.
- Partial Exposure: Partial exposure provides a good balance between aesthetics and durability. The exposed aggregate adds texture to the surface, which can help hide wear and tear over time.
- Full Exposure: Full exposure can enhance the durability of the floor, as the exposed aggregate acts as a wear surface. It can withstand heavy traffic and is less likely to show scratches or wear patterns.
Polished concrete undergoes a grinding and polishing process that regular concrete does not. This process enhances the appearance, durability, and stain resistance of the concrete surface.
The time it takes to polish concrete can vary depending on the size and complexity of the area, the level of polishing desired, and the condition of the concrete. In general, the process can take anywhere from a few days to a week or more.
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.
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.
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.
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.
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.
