Aluminium Clad Windows and Doors

Rationel Aluminum Clad

With more than 60 years of product innovation and development, Rationel is one of Europe’s leading window and door brands with a reputation for quality and innovation. Rationel aluminium clad windows are constructed from the same solid timber structure as Rationel timber windows, with the addition of an external aluminium cladding. This cladding provides an increased life expectancy and offers a window which requires minimal maintenance.

Rationel AURAPLUS

Key Features

Rationel AURAPLUS windows and doors come with security hardware as standard to meet Secured by Design requirements. The majority of the timber used in the construction of the windows and doors originates from FSC®-certified forests.

Like the AURA range, the AURAPLUS windows and doors are characterised by clean lines and a minimalistic design. AURAPLUS windows and doors are well suited to contemporary construction and offer a Scandinavian feel.

  • Aluminium-clad timber frame
  • Low-maintenance
  • 83-year life expectancy*
  • Available in more than 200 colours
  • Dual colour no extra charge
  • Best performance
Aura Plus double glazed windows and doors

Rationel Aluminium Clad Windows and Doors Double glazed

  • 1.29 W/m2 K U-value
  • 40 dB Rw sound reduction
Aura Plus Triple Glazed windows and doors

Rationel Aluminium Clad Windows and Doors Triple glazed

  • 0.79 W/m2 K U-value
  • 42 dB Rw sound reduction

Rationel FORMAPLUS

Key Features

Rationel FORMAPLUS windows and doors come with security hardware as standard to meet Secured by Design requirements. The majority of the timber used in the construction of the windows and doors originates from FSC®-certified forests.

Just like the FORMA range, the traditional looking FORMAPLUS windows and doors are characterised by their unique detailing and a classic style.

  • Aluminium-clad timber frame
  • Low-maintenance
  • 83-year life expectancy*
  • Available in more than 200 colours
  • Dual colour no extra charge
  • Best performance
Forma Plus Double Glazed windows and doors

Double glazed

  • 1.27 W/m2 K U-value
  • 40 dB Rw sound reduction
Forma Plus Triple Glazed windows and doors

Triple glazed

  • 0.78 W/m2 K U-value
  • 42 dB Rw sound reduction

What Our Clients Say

See All Testimonials

Mr J Stone

A really great team for our windows! They were extremely helpful and guided us through the entire process. The administrative team was very communicative. The installation team was knowledgeable, efficient, and friendly. There were a few tricky bits during the installation – fortunately all of their installers are trained carpenters, so they know the structure and opening nuances to make sure they fit properly.

Alistair, Haywards Heath

What makes this company stand out is outstanding customer service from start to finish. I had VELFAC 200 Energy windows installed for a new self-build so attention to detail was paramount. Westcott Architectural Glazing came to site multiple times before, during and after fitting to ensure the product was perfect. When one of the larger units was difficult to close, they sent their engineers to adjust it but still determined it wasn’t perfect, so replaced the entire unit. Its the service we all would hope companies strive to deliver but we typically settle for less. Composite windows really did deliver on my project. They have a great team in the office and at site. I would definitely use them in subsequent projects.

Mr Prudence

Just like to say a big thank you to Ryan, Fraser, Tommy, Luke and Tomasz for their commitment to get the installation right (it was a late night). I don’t usually single people out for a special mention but to Fraser who tried his best to get the old unit out with out damaging the render, minimising damage to internal finishes and keeping to task and in good humour when the dimensions weren’t working out. Thanks to Ryan and Tomas for completing the work the next day.

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