Architectural Glazing Solutions

Rationel Composite Windows

Elevating Your Space

Rationel Scandinavian windows encapsulate the essence of daylight, elegance and cosiness, significantly elevating the joy within your home. Boasting a high standard of energy efficiency, they stand as the cornerstone of a thoroughly comfortable and contented living environment, regardless of your home's style—perfect for both traditional and modern homes, offering a spectrum of classic and contemporary styles.

Each and every one of our windows is meticulously crafted to your precise specifications. We pay meticulous attention to every detail, encompassing the selection of colours and glazing, right down to the precision of the opening and closing mechanisms. The outcome is a window that is impeccably tailored to meet your unique needs.


An ideal choice for modern homes, this sleek window features a flat frame for clean lines and a Scandi-style touch. You can add glazing bars for detail or go for uninterrupted glass.

  • Solid wood frame (AURA)
  • Life expectancy of 60 years (AURA)        
  • Solid timber frame externally clad in aluminium (AURAPLUS) 
  • Life expectancy of 83 years (AURAPLUS)        
  • Double or triple glazed
  • Available in more than 200 colours
Rationel Aura Plus windows


FORMA and FORMAPLUS windows are thoughtfully designed to complement traditional British architecture. These windows boast timeless elements such as bevelled edges and angled glazing beads, making them a perfect choice for classic or older homes. You can also enhance their elegance with optional glazing bars.

  • Solid wood frame (FORMA)
  • Life expectancy of 60 years (FORMA)        
  • Solid timber frame externally clad in aluminium (FORMAPLUS) 
  • Life expectancy of 83 years (FORMAPLUS)        
  • Double or triple glazed
  • Available in more than 200 colours
  • Dual colour frames at no extra charge (FORMAPLUS)

Timber or Aluminium Clad Timber Windows?

All Rationel frames are crafted from timber, providing a solid foundation for superb thermal and acoustic performance. For those seeking added durability and ease of maintenance, our aluminium-clad frames are an excellent option. These frames feature the same solid timber core but with the added benefit of external aluminium cladding, significantly extending the windows' lifespan while requiring minimal upkeep. This ensures you can fully enjoy your Rationel windows hassle-free, whether in modern or traditional homes.

Rationel Window close-up
Rationel Doors

Rationel Doors

Elevate your home with Rationel Doors. Explore our extensive range of door designs, colours, and finishes to find the perfect match for your residence. Whether you prefer flush, glazed, or patio doors, we provide a diverse array of options to suit every preference. Choose AURA or the alu-clad AURAPLUS for a contemporary touch of elegance, or embrace a more traditional aesthetic with FORMA or the alu-clad FORMAPLUS. Rest assured; our doors are meticulously crafted with top-quality materials, adhering to the highest security standards.

Why choose Rationel Windows?

Create your unique windows with various opening types, colours, finishes, and glass options to suit your home's style and requirements
Choose Rationel's energy-efficient windows with slim, FSC®-certified frames to reduce your carbon footprint and energy costs.
Safety Assured
Rationel outward opening windows meet high security standards, featuring strong hardware, laminated glass, and multi-point locks.

GIVE US A CALL ON 01280 815493​

...or let us CALL YOU BACK at a convenient time to discuss all your UPVC or Aluminium requirements.
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Burgess Windows and Doors are a Local Family run business, based in Buckingham. We are FENSA registered Surveyors and Installers, specialising in double glazed UPVc Windows, Doors and Conservatories in Buckinghamshire and the surrounding areas.

Areas Covered

Chipping Norton
Milton Keynes

Contact Us

  • 2 Ballmoor, Buckingham Industrial Park, Buckingham, MK18 1RT
  • 01280 815493
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