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Rationel specialises in Scandinavian design. Slim sight lines, high-quality timber and unique ironmongery, along with the flexibility to slant or curve to your requirements. We are proud manufacturers of the Rationel windows and doors range, take a look at the options available to breathe new life into your home




AURA personifies clean lines. The sleek, flat frame gives your window a flush finish for a truly modern, Scandinavian feel. This is an extremely popular profile, especially for a stand-out “grand design”. Optional glazing bars can increase the architectural elegance of this style. Made from sustainably sourced timber, your windows and doors will last for decades if looked after. 

Choose AURAPLUS and we add aluminium cladding to the timber, which means maintenance becomes minimal and life expectancy rises by another 20+ years. The cladding comes in hundreds of colours and gives you the flexibility to have one colour inside your home and another on the outside. It can make a real impact and adds the durability to deal with the harshest of weather.



Designed to complement traditional British architecture, FORMA brings a softer line to your windows and ensures your project blends with its environment. Beautifully styled in sustainable timber that will last for decades, and the bevelled edges bring a homely feel. 

Make it FORMAPLUS and the aluminium cladding gives you the option of another colour for the outside of your home – however, it is unlikely you’ll want to cover up this beautiful styling. The cladded frame requires minimal maintenance and is extremely durable in all weather conditions. All styles are available with glazing bars, which particularly suit this style of window.


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The DOVISTA Group is made up of leading brands in northern Europe for facade windows and exterior doors. The group consists of a number of independent brands with more than 4,000 employees. They produce and market windows and doors in Denmark, Norway, Sweden, England, Germany, Ireland, Poland and Lithuania, including two of the latest brands we are manufacturing, Rationel and Velfac.


Doors: Hung, swung or guided.
Windows: Tilt, turn or slide.
Take a look at the options for what suits your home best: Opening Options.

Customise your windows and doors with a range of handles and accessories

Make a statement or play it cool with your choice of colour. Our standard colours suit most architectural styles, while our special range is ideal for highlighting unique features. Our windows and doors are available in one standard colour all over. AURAPLUS and FORMAPLUS windows can also be ordered with a different colour inside to outside, with no additional cost.

Rationel warranty is there should you need it. Rationel’s warranty covers the following:
●    Aluminium sash timber frame windows are covered for 12 years.
●    Aluminium-clad sash timber frame windows are covered for 10 years.
●    Five years cover for timber on Rationel AURA and Rationel FORMA windows, and all doors (entrance, patio, sliding, bi-folding and casement).
●    And two years warranty for electrical components and accessories. 
Learn more about Rationel’s warranty

CORGI backed installation
The installation of our doors and windows are covered by our CORGI Fenestration guarantee, giving you a life-long guarantee you can rely on.

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