Rationel has been perfecting the art of manufacturing energy-saving composite glazing products, windows, and doors built to the highest quality, with a strong focus on both security and comfort. Beautifully designed windows can encourage mindful living and shared experiences and create a literal opening to the outside world. Designed in Scandinavia for global application, giving you maximum daylight and comfort in your home. Rationel windows use sustainably-sourced timber and exceptional craftsmanship – they’re built to last for decades and to be enjoyed for generations. All VELFAC windows and doors are tailor-made so they can be designed to meet your tastes and needs thanks to our bespoke service. Our team of experts is dedicated to meeting all requirements and will offer you the help and advice needed to create a beautiful and stylish property. Windows and doors retain a uniform appearance, whether they open or not, further enhancing the uncluttered feel optimised by the contemporary design. Not only will you experience more daylight, giving your home a clean and bright appearance that you can enjoy year after year for decades to come.