Rationel AURA and AURAPLUS Contemporary Windows

With sleek, clean lines and designed to give you the best alu-timber windows, the Rationel AURA and AURAPLUS range provides all the beauty of wood and durable aluminium.  Rationel AURA is an all-timber window inside and outside.  AURAPLUS delivers a slim and durable powder coated external cladding, adding even more durability and a longer life span. Whichever style you choose, Rationel AURA and AURAPLUS are designed for you if contemporary windows work best in for your property project.

There is no higher-performing window than a timber or alu-timber window.  Warm to the touch, highly engineered and the beauty of a natural wood finish. Rationel AURA and AURAPLUS come with optimum window sealing, excellent acoustics, and some of the lowest U-Values when triple glazed. The range is perfect for use in low-energy or Passive House projects and with sustainably sourced timber from FSC® certified forests, you can be confident that your product purchase will make an environmentally conscious statement.

Rationel AURA and AURAPLUS all-timber windows in a new build flat
  • Luxurious alu-timber windows
  • Contemporary styling, no bulky frames
  • U values down to 0.78W/m2K
  • Architectural quality hardware
  • 60+ years life expectancy
  • Tested to the latest security standards

Rationel AURA and AURAPLUS offer flexible design options, including various opening window methods. Fixed light windows are perfect for creating picture or floor-to-ceiling glazing delivering light into your rooms with a slimmer frame profile.

For your opening windows, Rationel AURA and AURAPLUS come as top or side-hung windows, tilt and turn, reversible or special shapes and designs.  Tilt and turn and Side Guided provide more functionality, letting you clean the outside pane of glass from inside your room.

The manufacturing and overall product quality of Rationel AURA and AURAPLUS is first-class.  Quality woods, high performance glass, beautiful coloured aluminium and architect-designed window handles for optimum style, feel and window operation.   Of course, the best security comes as standard with window tested to meet the requirements of the latest testing standards.  Multiple locking points, reinforced fittings, and overall great design protect your home.

With over 200 colour options, virtually unlimited window designs and a full choice of glass, Rationel AURA and AURAPLUS feature the best in Scandinavian design and superior window and door quality. We don’t just want you to enjoy your windows – Rationel AURA and AURAPLUS are best in class, with an eye towards enhancing your home, creating quieter and warmer homes and a true investment in your home.

Customise Your products

A personalised touch

Glass options

Contemporary designs that enhance security and privacy.

Integral Blinds

An attractive addition delivering privacy and shading when you need it.


Peace of mind starts when you get in touch and lasts for years.

steve arundellsteve arundell
13:43 02 Nov 23
Chris and Andy listen to what we wanted and their team then delivered in spades.Great company well worth the effort to contact.
ArBa InstallationsArBa Installations
22:23 20 Dec 22
Posting from the view of an Installations company, C & A have always been a pleasure to deal with. Their process is very thorough and products are top quality. We use them for all our commercial doors and would highly recommend all their products and them as a company.
Paul DillonPaul Dillon
14:17 23 Nov 22
Great service. Top products. Thank you. C&A
Alfie TonerAlfie Toner
13:43 21 Nov 22
Great company to deal withQuick quotesPleasant staffGreat productsGreat customer supportDefinitely recommend
22:50 12 Jun 22
Couldn’t recommend this amazing company enough from start to finish the professionalism have been second to none. The quality of the work undertaken shows how much C&A take pride in there work. Thank You again
Gary WoodhatchGary Woodhatch
11:11 11 Mar 22
Have been dealing with Andy and Kim in the main at C&A windows for a few months now and the service overall has been great, quick quotes, lead-times inline with expectations and well presented and packaged goods. Great responsive aftersales assistance when called upon. Would recommend C&A for sure.
richard newellrichard newell
07:44 11 Mar 22
Always a pleasure to work with the people at c and a, very good communication throughout the process and most importantly the product is excellent.Highly recommended.

Send us an email

Send us an email if you have any questions.


call us

Need to know more about our products? Call us, and a member of our sales team will help you.

01787 477976

visit us

Book an appointment to visit our showroom.  
8am – 5pm Monday – Friday

Unit 1, Lancaster Way
Earls Colne Business Park, Earls Colne, Colchester CO6 2NS

We are looking for new staff to join our team.