Concria > Story

Made for professionals, by professionals

Concria’s success story can be traced back to a man named Viljo Ahonen who cleaned floors professionally in the 1970s. In 1991, he established a concrete floor grinding company called Dyny Oy with the help of his two sons (Dyny Oy is now part of Bermanto Group, Finland’s largest concrete floor contractor). Finally, in 2012, the father and son team established Concria Oy in Finland.

Innovations in protective, agent-based grinding methods

The roots of Concria’s story extend back to the 1970s when Viljo Ahonen from Finland established a company offering cleaning services. Not long after he opened his doors, Mr. Ahonen discovered the challenges posed by concrete floors and got to work finding a creative solution.

“At the outset of the 1980s, there were no other methods to protect stone floors than waxing. Using common sense, it was hard to understand why a hard stone surface was covered with a soft plastic coating which afterward was removed – sometimes several times a year,” Mr. Ahonen explains.

The continuous waxing sessions drove Mr. Ahonen to develop Finland’s first protective agent for stone surfaces. Demand exploded for the invention, and at the end of the 1980s, Mr. Ahonen began to carry out a larger number of stone surface protection projects. At the root of the issue, he worked so hard to address, was the fact that there was simply no equipment available to effectively grind stone floors. Surfaces were instead covered by layer upon layer of wax and were never refurbished. This observation led Mr. Ahonen to develop a practical, effective grinding method for supermarkets and other public buildings.

Achieving market leadership in concrete floor grinding

In 1992, the cleaning operations switched to a new enterprise that focused on grinding: Dyny Oy. Over the last 20 years, Dyny has rehabilitated, ground, treated, and protected concrete and terrazzo floors, gathering valuable experience as each floor’s unique characteristics were encountered.

Dyny has grown to become Finland’s largest operator in the field, servicing projects that rank among the largest in the country. Since 2016 Dyny Oy has been part of the Bermanto group, a leading concrete flatwork contractor in Finland with a more than 20-million-dollar turnover.

Revolutionary innovation and the founding of Concria

In 2012, the Ahonen family decided to establish a company called Concria Oy dedicated to selling diamond tools.

Our latest innovation is the patented Concria™ FAST trowel polish system which transforms any ride-on power trowel into a concrete grinding, polishing, and cleaning machine. The Concria system creates a smooth, glossy, dense, and easy-to-maintain surface in record time for both concrete and dry-shake floors. Concrete grinding and polishing have simply never been easier.

We first developed the Concria™ FAST system as an answer to our own needs. Once we realized how successful and useful it is, we decided to present our system as an economical solution to the same problems shared by flooring contractors around the world.

Decades of experience led to revolutionary innovation in the concrete cleaning and polishing industry.