
Aluminium
Windows
Our Origin aluminium windows are a fantastic addition to any home. You can choose between our slimline OW70 system or more robust OW80 system which comes with an exclusive flush finish internally. Both systems achieve 2025 Future Building Standard compliance today and can achieve U-Value as low as 1.0W/m2K. Perfect for any home renovation, extensions or self-build project!

Features & Options
OW70 sight line: 65mm
OW80 sight line: 91mm
Maximum width (both systems): 4800mm
Maximim height (both systems): 4800mm
OW70 U-Value: Up to 1.2W/m2K
OW80 U-Value: Up to 0.8W/m2K with Aerogel
Georgian bar system OW80: YES
Georgian bar system OW70: YES – used via flat trim
Popular colours: White (RAL 9910), Anthracite Grey (RAL 7016), Jett Black (RAL 9005)
Bespoke RAL colours and wood grain finishes also available
Unique internal flush finish with OW80 system
OW70
The Origin OW70 aluminium window system is our slimline system. This system is ideal for those looking for slim frames and to maximise the glazed area of their windows. The OW70 system is often specified in large home renovation projects, as well as new-build extensions and self-build homes. Their slim frames and square sight lines make for a timeless aesthetic as well as flooding any space with natural light.
OW 80
The Origin OW80 aluminium window system is our premium aluminium system. With sight lines of 91mm and a unique double-flush finish to the inside and outside of the window, the OW80 system is ideal for those wanting a super-modern look. The OW80 is also ideal for significantly larger spans where the strength of the thicker profile allows for much bigger glazed areas. When specified with Aerogel, a special insulative material that sits inside the frame, the OW80 can achieve an A++ energy rating and a U-Value of 0.8W/m2K – this is equivalent to PassivHaus standards.
CLEAN, MODERN AESTHETICS
Aluminium windows are ideal for any home. Whether it’s a renovation or a self-build, our OW70 and OW80 aluminium window systems are elegant yet modern, with clean sight lines, ageless aesthetics and superb energy efficiency
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