Heritage Windows

This aluminium window system is designed as a slim-line and thermally efficient replacement for steel windows. Part of our Heritage Range it uses steel look-a-like profiles. They look just like your old steel windows, and will maintain the character and integrity of your period property. Our Heritage Windows have even been approved for use in grade II listed buildings and conservation areas. Approved suppliers of Letchworth Garden City Heritage Foundation.

Our Heritage windows will be a great improvement on your old steel windows. They use the latest ‘Polyamide’ thermal break barrier technology, have high security Ste’alth Secure™ Locking, which locks your windows on three sides making them as strong and resilient and steel and is still a fraction of the cost of steel windows. Due to it‘s high specifications our Heritage Windows are suitable for new build as well as replacement and refurbishment projects.

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Heritage Windows

These beautiful Heritage Secure Windows are designed as a thermally efficient replacement for steel windows. Designed to replicate exactly the traditional look of steel windows.

We are so convinced that our window is the best aluminium look-a-like available that we have put an original steel window next to it in our showrooms.

Visit our showrooms and see for yourself.

Of all the steel look-a-like, crittall imitations on the market we believe ours is the best.

Unlike many of the steel look-a-like imitation windows available, our Duration Heritage Windows meets all the building regulations for New build. Using a superior polyamide thermal break barrier, as opposed to a resin break, which will not meet the building regulations for new document part L regulations.

Accepted for use in grade II listed buildings. Accepted by Letchworth Garden City Heritage Foundation as a suitable replacement window, one of many organisations now converted to using our unique products.

Window Features

  • Ultra slim sight-lines and only a 47mm depth of frame.
  • An authentic look, that replicates traditional steel windows.
  • Uses a superior polyamide thermal break barrier for high thermal efficiency.
  • Modern multi-point locking options. (including our patented all round Ste’alth Secure™ locking).
  • 24mm internally glazed sealed units.
  • Can be fitted into existing or new timber frames or direct to brick.
  • A fraction of the cost of replacement steel windows.
  • Suitable for use in period properties, listed buildings and conservation areas. (And has in the past been installed into grade II listed buildings)
  • Meets all the specifications for NEW BUILD. Perfect for replacement and refurbishment projects and is equally at home in domestic and commercial applications.
  • Curved, arched and shaped windows can be fabricated using this system. (with or without openers)

All of our products are made to measure, custom manufactured to your exact specifications.

All aluminium products can come in a wide range of internal and external colour finishes. Windows and doors can be supplied in a range of standard colours, or in any single or dual RAL colour. Polyester Powder coat Finish)

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Contact Information

  • Units 4-5,
  • Charfleets Road,
  • Canvey Island,
  • Essex,
  • SS8 OPQ
  • T: 01268 681612 (Office)
  • T: 01268 695100 (Showrooms)

  • F: 01268 510058 (office)
  • E: sales@duration.co.uk
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Twitter Blyweert authorised partner, approved fabricator of Blyweert Beaufort products Smarts Systems approved fabricator. We are the largest supplier of Smart products in the UK. Rehau authorised partner We are a supplier to the Ministry of Justice BFRC logo We have been approved by BM Trada - certificate number 105 We are featured on RIBA product selector, Royal Institute of British Architects NBSPlus Logo

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