About Rationel Vinduer Ltd.
Good, solid quality
workmanship has characterised Rationel's windows and doors since
the first products were shipped from the factory in Sdr.
Felding, Denmark, in 1954. On that basis, Rationel has created a
sound foundation, and is today an international company with sales
activities in Denmark, Great Britain and Ireland.
Rationel manufactures energy saving and contributing
windows and doors of premium quality in terms of comfort and
security. We develop our windows and doors
continuously, ensuring that they will always meet current statutory
requirements as well as market requirements for design and
Rationel is part of the DOVISTA Group which consists of
ten leading door and window companies in Europe. DOVISTA A/S is
owned by VKR Holding and employs approx. 15,000 people
in more than 40 countries.
The history of Rationel
1954 Rationel was founded
1987 Rationel IE was established
1995 Rationel UK was established
1999 Valcap A/S and Axcel bought Rationel
2001 The production of plastic windows stopped
2004 VKR Holding bought Rationel
2007 The first Danish window producer with CE-tested products
2010 Rationel wins the Danish Building Industry's Energy