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Rationel windows and doors

One of Europe’s leading window and door brands

Rationel is known for its quality and innovation and has a strong distributor network. Founded in Denmark in 1954, it is now part of the DOVISTA Group and delivers over 350,000 windows globally every year

Beautifully bespoke
Scandinavian windows

Rationel Scandinavian windows are designed to enhance the comfort and joy of your home by combining natural light, aesthetic appeal, and warmth. They are highly energy-efficient by default, ensuring a pleasant and cozy atmosphere in any type of dwelling.

Rationel craft each window according to your specific requirements, paying close attention to details such as color, glazing, and functionality. This ensures that the final product is tailored precisely to your needs.

Whether you prioritize eco-friendliness and a rustic appearance, or durability and protection against harsh weather and the demands of a busy household, Rationel has the perfect solution for you.

Shaping your outlook

Every element should complement your lifestyle.

Renovations and refurbishments

Upgrade outdated or inefficient glazing with elegant, durable, and long-lasting windows and doors.


Install new windows in new construction projects to ensure exceptional insulation, longevity, and a cohesive style with the existing home.

Traditional and modern

With two window styles available, classic and contemporary, every home can enjoy the benefits of Rationel windows and doors

Scandinavian inspired homes

Windows and doors that emphasize well-lit spaces, robust artistry, and a sophisticated appearance.

Double or Triple Glazed

Add glazing bars for extra detail or keep things simple with beautiful, uninterrupted glass


For modern and contemporary homes, the perfect window option is available. It features a flat and streamlined frame that provides crisp edges and a smooth surface, imparting a Scandinavian touch to any room. You may opt for glazing bars to enhance the detailing, or choose an unobstructed view with stunning, clear glass for a more straightforward approach.


  • Solid wood frame
  • Life expectancy of 60 years
  • Double or triple glazed
  • Available in more than 200 colours
  • Meets Secured by Design standards


  • Solid timber frame externally clad in aluminium
  • Life expectancy of 83 years
  • Double or triple glazed
  • Available in more than 200 colours
  • Dual colour frames at no extra charge
  • Meets Secured by Design standards
More about Rationel AURA and AURAPLUS

A lifespan of 60 years.

The AURA and FORMA windows, crafted entirely from timber, offer an expected lifespan of 60 years, which is a testament to their impressive durability. For locations that require even greater strength and reliability, the AURAPLUS or FORMAPLUS windows, featuring an alu-clad external frame, can add over 20 years to the life of your windows with minimal maintenance.

Cosy and quiet

Stay warm and cosy with Rationel. Choose from double or triple glazing to help achieve the ideal comfort level in every room. Excellent insulation also means great noise reduction, so add peace and quiet to the list of Rationel benefits.

Protect the environment

Reduce your carbon footprint and energy bills by choosing energy-efficient Rationel windows with slim frames made from FSC®-certified wood. Additionally, our windows are awarded the Danish ‘Indoor Climate Label’ for not emitting toxic substances after installation.

Safe as houses

All Rationel outward opening windows meet Secured by Design standards, which means they are designed to withstand a typical burglar’s attempt to break into your home. Features such as extra strong ironmongery, laminated glass and multi-point locking all help keep you safe and secure.

Tailored to your home

Make every window tailored to your home's unique style with Rationel windows, manufactured to order with various opening types, colours, and finishes. Choose from an extensive range of glass options, including privacy, solar control, noise protection, and coloured panels.

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Visit us:

Fönster Hus
Unit 1, Whitecross Farm
Cheriton Fitzpaine
Crediton, Devon
EX17 4HE

01363 860028

Drop us an email:

[email protected]