Explore Rationel
As a proud member of the VKR Group and its impressive 75 year heritage, we continue to be at the forefront of modern window and door design. We bring energy efficiency and sustainability together in beautiful Scandinavian products that are undeniably made well.
Designed for dreamers,
by dreamers
We’ve always had a vision. Since the beginning, we’ve been as passionate about creating a feeling as we are about our products themselves. We dreamed of inspiring warmth and togetherness, of bringing a sense of tranquility and safety to an indoor environment and for people to step back and enjoy.
Our vision today? It’s the same as it ever was. We want our windows and doors to truly change the way people live and help everyone achieve their own space of calm right there in their own home.
Dream big, and we’ll frame your world.
Danish foundations.
International impact.
Every year we craft and deliver over 350,000 windows for new build and renovation projects around the world, with each one demonstrating the iconic Danish design and attention to detail that we’re known for.
We’re proud to be part of the DOVISTA Group, comprised a number of Europe’s leading window and door companies. Owned by VKR Holding, DOVISTA strives to bring air and light into the lives of people everywhere, every day – and is a mark of the quality that permeates everything we do.
Built to last, in every sense
We don’t do what we do to create something short-lived. Our windows and doors are built to last; durable, high-performance products to be enjoyed for decades. The same goes for the relationships we build, not only with our customers but everyone we work with, from installers to distributors to sales teams. Our approach sparks longevity and a trusted connection – and that’s what makes us different.
Let’s build your dream home together
Ready to take the next step? We’re ready to help. Just get in touch to start your journey.