We bring daylight and fresh air into people’s everyday life

Attention to detail matters when creating a home that nourishes your mind, body and soul.  At Rationel we go above and beyond to create windows that elevate the beauty and ambience of your living spaces, providing exceptional functionality that allows you to control the daylight, fresh air and sound entering your home.

Taking care of the planet

Sustainability is about minimising the negative impact on our planet. But it is also about ensuring your physical and mental wellbeing in the spaces where you live, work, learn and play.

By choosing long lasting and energy efficient Rationel windows and doors, you are investing in both your family and our planet’s future.

Renowned across Europe, Rooted in Ireland

We are proud to be part of the DOVISTA group, Europe’s largest door and window manufacturer. At DOVISTA, quality is at the heart of how we go about the business of bringing light and air into the lives of people everywhere, every day. Both DOVISTA and our sister company VELUX are owned by VKR Holding.
“At Rationel, we take pride in making every interaction with our customers a positive one. We seek to set ourselves apart by providing homeowners the highest quality and best performing windows and doors with a seamless customer experience. We strive to deliver a quality service that truly shines.”

Gavin Connery, Managing Director, Rationel Ireland

Our team: Your trusted partner all the way

When you choose Rationel, you’re partnering with professionals at every stage of the process, from the initial consultation through to the final fitting. Our team is knowledgeable and friendly and will ensure your peace of mind at every interaction, from advice on choosing the right windows and doors right through to their installation in your home.

We share the same goal; creating an aesthetic home tailored to you and your family. Our team of professionals will be by your side each step of the way.

Making your dream home a reality

We know your home is more than just a house. It is your sanctuary.

Whether you’re building your dream home from the ground up, refurbishing an older property or planning an extensive renovation, we’re here to turn your aspirations into reality. Enhance your living space with our elegant and functional solutions.

“Exceptional customer service is the cornerstone of our success. Each customer and each home is different and that’s why every solution is tailor made. We are always working to deliver a service experience that leaves a lasting impression. This commitment makes me immensely proud.”

Tony Bell, Cork Showroom

Discover our products

Rationel’s custom-made, premium alu-clad windows and doors effortlessly fuse Scandinavian design principles with enduring quality. Our products are meticulously crafted, to both make your home more beautiful and to stand the test of time.

Every year Rationel produces and delivers over 350,000 windows and doors. We ensure each and every piece is created with the same standard of care and attention to detail.

Giving back to society

A portion of Rationel’s profits go via our owners VKR Holding to THE VELUX FOUNDATIONS. These funds contribute to a selection of non-profit environmental, scientific, cultural, artistic and social organisations.