Let’s Clear the Air (and the Dust)

If we had a dollar for every myth we’ve heard about polished concrete floors, we could probably build a floor out of them. Over the years, we’ve had clients ask if polished concrete is slippery, weak, cold, noisy — you name it. Some even think we pour new concrete each time. Spoiler: we don’t. We polish what’s already there, and it ends up looking incredible.

At NZ Grinders, we believe in straight talk. So today, we’re busting the biggest myths about polished concrete — with a healthy dose of humour and a trowel of truth.

Myth #1: Polished Concrete Is Slippery

Ah yes, the classic! Many assume shiny equals slippery. But that’s not the case. Polished concrete actually offers excellent slip resistance, especially when finished correctly. It’s smoother, sure, but it’s not an ice rink. In fact, a properly finished polished concrete surface can have better grip than tiles — even when wet.

We use professional densifiers and sealers that increase friction while keeping that glossy look. So unless you plan on pouring oil all over it (please don’t), you’re safe.

Myth #2: It’s Just for Industrial Spaces

This one always makes us smile. Yes, polished concrete has its roots in warehouses and factories, but it’s now a design favourite in modern homes, offices, and retail stores. Why? Because it’s sleek, easy to maintain, and fits practically every style.

We’ve polished everything from chic Tauranga kitchens to corporate lobbies in Wellington. When done right, it’s the perfect blend of toughness and sophistication — like a bodybuilder in a tuxedo.

Myth #3: It’s Cold and Uncomfortable

Let’s set the record straight — polished concrete floors don’t create cold. They simply match the ambient temperature of the room. And here’s the kicker: they actually work beautifully with underfloor heating.

Because of their thermal mass, polished concrete floors store heat during the day and release it slowly at night. That’s not just comfortable — it’s energy-efficient. So if you want to walk barefoot through your home without shivering, polished concrete has your back (and your feet).

Myth #4: It Cracks Easily

Concrete cracking is often misunderstood. All concrete can develop hairline cracks over time, but polished concrete doesn’t crack more than other floors — it just makes those natural imperfections look intentional and stylish.

We grind, fill, and seal to make sure your surface stays strong and beautiful. And those tiny marks? They add character — kind of like laugh lines on a well-lived face.

Myth #5: It’s Too Expensive

Here’s where we surprise people. While the upfront cost may seem higher than some traditional flooring, its normally more cost effective than tiling, and the long-term savings are huge. You don’t replace it. You don’t wax it. You barely maintain it. Once it’s done, it’s done — and it lasts decades.

So yes, it’s an investment, but one that pays for itself over and over again. And it makes your property look like a million bucks, without actually costing it.

The Truth? It’s the Smartest Floor You’ll Ever Own

Polished concrete is tough, stylish, and sustainable. It doesn’t trap dust, it’s easy to clean, and it fits anywhere from industrial to high-end residential spaces. Myths? Consider them busted.

At NZ Grinders, we’ve been grinding and polishing concrete across New Zealand for years — and we’ve heard every misconception in the book. So if you’ve been on the fence about whether polished concrete is right for your space, give us a call. We’ll set the record straight — and give you a floor that turns heads.

📞 Glen – North Island – 021 434 199
📞 Mike – South Island – 027-755-6676
💬 Contact us today to get a free quote and see what really happens after the grind.