About Us


Ian and Lesley Kennett bought Flash Concrete in 2019. They bring with them over 40 years of experience in the construction industry. Over 30 of those years have been focused on concrete and concrete technology.

Ian has an in depth understanding of the concrete industry and how concrete behaves as a material, both from experience and from having studied through the City and Guilds of London Institute. He has worked in many different parts of the industry, including for construction chemical and concrete coating suppliers. Ian and Lesley have previously run a successful specialist flooring business on Queensland’s Gold Coast. Because of his experience and training Ian has the knowledge, skill and ideas to bring the right solution to your decorative concrete job.

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 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