Rationel

We are proud to have been chosen by Rationel as their one and only approved installer in Somerset. The outstanding aesthetics and performance of their timber and alu-clad glazing dovetail with our quality installation and finishing to provide our customers with windows and doors which are second to none.

They are both available in two different designs one for contemporary and one for traditional homes meaning we will have the perfect profile for you.
Call Fenestra today to book your free, no obligation consultation and find out how our Rationel range can work in your home.

Alu-clad

Alu-Clad is an excellent combination of performance materials. It has timber internally and Aluminium externally. With the Aluminium available in all RAL colours.

Bespoke design

We can supply Rationel windows and doors in a vast supply of configurations and shapes to ensure your glazing meets your exacting requirements.

Sustainability

Rationel timber is FSC certified. They also meet the strict performance, quality and sustainability standards as members of the Wood Window Alliance.

Market leading Design features and Performance

The complete Rationel range has been vigorously tested to ensure it meets all that our British weather has to through at it. With extended water resistance test, high pressure testing for extreme wind force and simulated storm testing. It has also received wear and tear testing.

It's ​Secure by Design status also shows that you can purchase Rationel in the confidence that it is fit for purpose. With glazing fitted with enhanced ironmongery, solid bolts, security sealants, hinges and receivers. and doors with three-point espagnolette locking mechanisms and hook bolts.