Crittall Windows reimagines steel with new revolutionary rolled steel system

Leading steel window and door manufacturer, Crittall Windows, has unveiled a thermally enhanced rolled steel window and door system. 

This latest product is a patent pending adaptation of the company’s iconic Corporate W20® steel profiles which have been adapted, by state-of-the-art CNC machinery, to attain impressive UW & UD values of just 1.4 W/m²K.   

As a real gamechanger in the steel window and door market, this new system also achieves a thermal gradient across the profile equivalent to that of thermally broken steel section. Plus, the innovative co-extruded dual weather seals deliver superior weather performance, helping to secure this product’s high-performance credentials. 

Like all steel windows manufactured by Crittall Windows, the new Corporate W20 TE® system has a life expectancy in excess of 60 years, meets current UK Building Regulations – including Approved Document L – and is galvanized and powder coated in any RAL, BS or bespoke shade to increase durability and prevent corrosion. 

What’s more the traditional elements of a steel window have been maintained within the revolutionary system which still features impressive slim sightlines, design flexibility and the stunning aesthetic of the original Corporate W20® rolled steel system. 

Russell Ager, MD at Crittall Windows, said: “The launch of this new steel system is game changing for the industry. Manufactured to the highest quality, this traditional steel window meets modern performance and makes the perfect addition to any commercial or residential project. 

“As a team we’re proud to announce that the inherent strength and robustness of steel has not been compromised in this new system. This means Corporate W20 TE® can be specified for the most demanding new build or replacement applications. 

“At Crittall Windows, we’re dedicated to delivering excellence and thanks to the expertise and knowledge of our incredible team we’ve been able to create a new steel system that not only looks fantastic but delivers exceptional performance.” 

Launched almost 200 years ago, Crittall Windows is the world’s leading manufacturer of steel windows. The company is renowned for manufacturing high quality steel windows, doors and internal screens for new build projects as well as contemporary, commercial and residential buildings. For more information on this incredible new system visit: