About Us


Flash Concrete was formed by Cory Grant & Jocelyn Grant after seeing a gap in the market for premium interior and exterior decorative concrete and finishes.

Having been in the Decorative Concrete industry since leaving school and running a number of companies, they are constantly researching new techniques, trends and products, while keeping one eye on the latest local trends. With a real passion for raising the standard in Decorative Concrete, they have available, some of the most exciting finishes available anywhere and brought them to the New Zealand market.

Whether it be a designer concrete floor, a stunning patio area and furniture that make you want to get outside, a lightweight faux stone wall without the huge cost and risk of real stone, a driveway that screams class to passers-by, to finishes in your home that have charm, practicality and individuality that you will not see anywhere else.

We are on a journey into the countless possibilities in decorative concrete. Would you care to join us?

South Island Display Centre

Visit us at our Display Centre located at 32 Hawdon Street in Sydenham. One of our friendly staff will guide you through the display and explain the features and benefits that these products and applications can provide for you on your project. If you have a set of plans, bring them with you to discuss your options.  Or walk through our exterior display any time that suits you, without the pressure of staff on site, as the display is open week nights and weekends.

On display is a large range of products and finishes for you to view including:


Decorative Concrete, Overlays Stamped and Textured Finishes,  Exposed Aggregate,  Coloured Concrete, Vertical Overlays,  Concrete Furniture and Fire Pits, Water Features and Concrete Repair Solutions


Metallic Epoxies, Acid Stained Flooring, Micro-toppings, Stamped Overlays, Stencilling and motifs, Polished Concrete and Faux Timber Overlays


Vertical Stone , Overlays , Micro Toppings