Rationel is at the forefront of energy-efficient window and door manufacturing in Denmark and around the world. Rationel is part of DOVISTA Group, which consists of ten leading window manufacturers in Europe with a common mission to bring natural daylight, fresh air and a better environment into people's everyday lives.
Supplying both modern and classic styles for both new build and refurbishment projects.
“We basically offer a complete service. For over 60 years our company has been based on excellent craftsmanship. This is still the case. At Rationel we take a pride in delivering high quality,” says CEO Thomas Tvedergaard Larsen.
CARE FOR CLIMATE AND ENVIRONMENT
We believe it is important to look after the climate and the environment. Our timber comes from FSC-certified forests in Sweden, which we then treat with eco friendly products. We recycle waste glass, paint and aluminum and we heat our factories with recycled wood from our production processes. In other words, we produce windows and doors with a clear conscience.At the same time a portion of our profits goes to the Villum Foundation which donates 15 million pounds to environmental and climate projects every year. Together with several other foundations associated with the VKR Group, it funds nonprofit scientific, cultural, artistic and social initiatives.
HOW IT BEGAN
It all began in Sdr. Felding with a hard-working carpenter and an order for 31 barn windows. As a young apprentice in the 1930s, Richard R. Nielsen had craftsmanship in his soul. In those days everything was made by hand - in fact his boss did not even own a machine. As a skilled craftsman, Richard R. Nielsen soon bought his own joinery workshop, where he continued this proud tradition. Then in 1954, he had his first order for 31 barn windows, which enabled him to invest in some modern machinery. Soon the workshop became a factory and Richard R. Nielsen built up a solid business based on consistently high standards of workmanship and quality.
HIGH QUALITY WINDOWS AND DOORS
More than 60 years later Rationel employs 1,050 people in Denmark, England, Ireland and Poland. We continue to manufacture high quality windows and doors that are durable and designed to last. They not only withstand wind and rain, and attempted break-ins, but the constant wear and tear of busy family life with young and teenage children repeatedly opening and closing windows and doors year after year.
This is not just something that we talk about."Durability is something that we test again and again from every conceivable angle," says CEO Thomas Tvedergaard Larsen.