Rationel timber windows on the side of a house.

Rationel Timber Windows and Doors

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 timber windows and doors are a great choice for both modern and traditional homes. Through using a solid timber core to the frames, Rationel windows and doors offer excellent thermal and acoustic performance.

Rationel AURA

Key Features

Rationel AURA 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.

  • Timber frame
  • 60-year life expectancy*
  • Available in more than 200 colours
  • Optimum performance

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

Aura double glazed.

Rationel Timber Double glazed

  • 1.29 W/m2 K U-value
  • 41 dB Rw sound reduction
Aura Triple Glazed.

Triple glazed Rationel Timber

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

Rationel FORMA

Key Features

Rationel FORMA 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.

  • Timber frame
  • 60-year life expectancy*
  • Available in more than 200 colours
  • Best performance

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

Forma Double Glazed.

Rationel Timber Double glazed

  • 1.27 W/m2 K U-value
  • 40 dB Rw sound reduction
Forma Triple Glazed.

Rationel Timber Triple glazed

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

What Our Clients Say

See All Testimonials

Richard

We had a leak from our VELFAC windows, so we got in touch with Composite Windows (Westcott) for a fix. The windows are over 12 years old, so not unexpected! It was a simple process and they attended site about 2 weeks from our first contact. Turns out the problem was not with the windows, but from the roof above. Jack was very Proffesional and really took his time looking at every possible other reason for the leak. To be fair he was right! What made the visit so impressive in my view was it would have been so easy to say “it’s not the window you need to call a roofer”. Jack did a repair job sealing up the possible problems on the roof and did a very nice job. Now that I know the job may not be a long term fix, but the very fact that he went out of his way to find a solution says a lot about him and the company. This was not a flying visit about 2 hours were spent finding and fixing the problem. Nice to find a company who cares and goes the extra mile. I may still have a leak at some points but at least they tried, that i fully respect and appreciate.

Alison & Tony, Hungerford

We were very impressed by your teams skill and professionalism so thank you for guiding us through the Velfac process.

Kandy, Alton

Your communication was excellent and your team reliable and happy to go the extra mile to provide customer satisfaction. The windows look terrific and your team were very impressive. We do not hesitate in recommending Westcott Construction.

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