Uncompromising quality characterises all Rationel windows and doors. It is our guarantee to you that the durability of Rationel windows and doors are among the best on the Danish marke.
On our Aluclad (timber / aluminium) window the outside of the window is protected with an alumiunm cladding. If you choose a timber/aluminium window then you can look forward to minimum maintenance.
You are guaranteed to keep in the heat and save on energy with energy-efficient windows from Rationel. You will get the optimal solution with our PREMIUM version, which sets the standard for energy optimization.
Here at Rational we want to make sure that you sleep peacefully at night knowing that your home is safe from intruders. Rationel windows and doors are tested and marked according to several national and European standards, including ’Secured by Design’.