Ruislip Windows and Doors Ltd
Origin Windows


Premium aluminium flush fit windows

Our superior aluminium window collection from Origin showcases beautiful, elegant windows with both modern or traditional style options - perfect for any property style. With 150 RAL colours to choose from, combined with the finest premium grade aluminium, our Origin windows will complement every home, from contemporary new builds to period style cottages. Open up your living space to completely suit your needs and fill your home with natural light.


The Origin Window collection has two systems: the OW-70 Slimline and the OW-80 Premium.

Both windows feature stunning design and an exceptional finish. The OW-70 window offers the slimest sightlines for more natural light and less window profile. The OW-80 window offers additional configurations, large sizes and more custom options. Download your brochure to discover more.

  • Sightlines: OW-70 = 65mm, OW-80 = 91mm
  • Max width = 4800mm, max height = 4800mm
  • Up to a 20 year manufacturer's guarantee
  • Dual colour option - 150 RAL colours
  • Colour coded gaskets
  • PAS24:2016 certified
  • Secured by Design accredited
  • OW-70 U-Value: up to 1.2W/m2K
  • OW-80 U-Value up to 0.8W/m2K (with Aerogel)
OW-70 and OW-80 casement windows
Origin windows
Origin OW-80 windows and gable
OW-70 windows
OW-70 windows
OW-70 windows
OW-70 windows

The OW-70 and OW-80 are beautifully flush fitting for an elegant, streamlined look.

Simplistic in style, our Origin windows feature an external flush casement, creating an ultra-sleek, clean and timeless finish. The OW-80 takes this one step further, having a flush casement both internally and externally – an industry-first, with stunning results. Because there are no protruding lips on a flush casement, the windows are easier to maintain and keep clean.

No matter which system you choose, from the outside, all you will see is a sleek shadow where the sash meets the frame, making it a truly different and stylish look for any type of home. And, if you opt for our OW-80 window, you will benefit from the flush look both inside and out.

Download your Origin Window Brochure now and contact us to arrange your free no-obligation quotation.