Origin OW-70 Slimline Window

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Origin OW-70 Slimline Window

The Origin Slimline Window (OW-70) is our slimmest window yet, combining strength with sleek design to create the finest aluminium window on the market today.

Expertly designed to feature no overlapping external frames, our Slimline Window will add a trim and elegant appearance to your home. Whether it’s a townhouse or new build, the OW-70 adds a touch of class to any property; a joy to look at as well as use.

Difference between OW-70 & OW-80

The main difference between OW-70 and OW-80 is the way that they look.

OW-70 offers the slimmest sightlines at just 65mm wide, ideal for those looking to maximise on natural light and views. OW-80 may not offer sightlines as slim as OW-70, however, it offers an internal flush casement, which OW-70 cannot provide.

Both OW-70 and OW-80 are manufactured using premium grade aluminium, are durable and low maintenance, and come with an industry-leading guarantee of up to 20 years.

Built with security in mind

The OW-70 is crafted using premium grade aluminium to offer the same levels of strength, durability and high quality that Origin products are renowned for.

PAS 24 certified the OW-70 has achieved resistance to racking and static torsion certificates. The OW-70 may be slim, but it is also incredibly strong.

The lock itself is a stainless steel multi-point lock. Number of locking points vary depending on the size of the window, meaning security is not compromised no matter how big your window is.

Close up of ow-70's high security fittings and hardware

Ultra-slim Sightlines

Completely bespoke and made using premium grade aluminium – just like all Origin products – the OW-70 offers a slimline alternative guaranteed to modernise your property.

Achieving a sightlines of just 65mm, the Origin Slimline Window is one of the slimmest windows available with a guarantee of up to 20-years. These ultra-slim sightlines mean less frame and more natural light, as well as better views.

Available as either a casement or fixed window, the OW-70 is ideal for spaces where maximising glass size and light is essential.

Cutout of Black OW-70 showcasing it's slim sight lines and sleek appearance

Superb Design

Available as either a casement or fixed frame window, the OW-70 remains a truly bespoke product offering from Origin. We’re able to accommodate most sizes and are on hand to help.

OW 70 Aluminium Casment window in grey with frosted glass

OW 70 Aluminium Casement window in grey with roller blind

Zoomed in angled shot of white OW 70 Aluminium Casement window

OW 70 Slimline Aliminium Casement window in grey with window open

Zoomed out shot of home installed with OW-70 Aluminium Casement windows

Close up of handles on OW 70 Almunium Casement Window

Key Features

Slim Sightlines

OW-70 offers the slimmest sightlines at just 65mm wide, ideal for those looking to maximise on natural light and views.

Built with security in mind

The OW-70 is crafted using premium grade aluminium to offer the same levels of strength, durability and high quality that Origin products are renowned for. So confident in our design, we offer an industry-leading guarantee of up to 20‑years, in non-marine environments. So, you can rest assured that your Origin Windows will last for decades.

Range of handle options

Every OW-70 comes with either an inline handle or crank handle, both of which offer an elegance feel and finish – the choice is yours.

Durable powder coating

Whether you’re looking for a bright primary shade, a candy-coloured pastel or a deep, earthy tone, Origin’s extensive colour palette can’t fail to inspire you.

Thermally efficient

Stay warm in winter, cool in summer. OW-70 can achieve a U-value of up to 1.2W/m2K, which meets current building regulations. When chosen with a short leg, the OW-70 window achieves an A energy rating.

Slim Sightlines

OW-70 offers the slimmest sightlines at just 65mm wide, ideal for those looking to maximise on natural light and views.

Built with security in mind

Range of handle options

Every OW-70 comes with either an inline handle or crank handle, both of which offer an elegance feel and finish – the choice is yours.

Durable powder coating

Whether you’re looking for a bright primary shade, a candy-coloured pastel or a deep, earthy tone, Origin’s extensive colour palette can’t fail to inspire you.