Duration’s Aluminium Heritage Windows


This aluminium window system is designed as a extremely slim-line thermally efficient replacement for steel windows. Our Heritage windows use the latest ‘Polyamide’ thermal break technology, has complete and authentic range of furniture, replica steel look-a-like profiles and is still a fraction of the cost of steel windows. Due it‘s high specifications our Heritage Windows are suitable for NEW BUILD as well as replacement or refurbishment projects and can (and has been) approved for use in Grade II listed buildings and conservation areas. When combined with our patented Ste’alth Secure™ Locking, it makes for an incredibly strong and secure Heritage window.

Heritage Windows

Aluminium Heritage Windows - Brochures

To request any of our brochures or technical manuals to be emailed or sent to you in the post, please don‘t hesitate to contact us.

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Downloads - Consumers Brochures & Literature
Brochure Document Description Download
Heritage steel replacement windows, cost effective alternative to Crittall windows Heritage Steel Look-a-Like Windows & Doors
- 8 Page Brochure
PDF Download
(1.2 Mb)

Build your own Heritage window from the options you see here, using our online Heritage Window Builder »

NBSPlus Logo We are featured on RIBA product selector, Royal Institute of British Architects We have been approved by BM Trada - certificate number 105 BFRC logo We are a supplier to the Ministry of Justice Rehau authorised partner Smarts Systems approved fabricator. We are the largest supplier of Smart products in the UK. Blyweert authorised partner, approved fabricator of Blyweert Beaufort products Twitter