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Available in both OW-70 Slimline and OW-80 Premium ranges, the Origin Casement Window combines traditional design, advanced manufacturing
and versatile premium grade aluminium for high levels of security and thermal efficiency to complement any type of build.
OW-80 Casement Window
For a truly unique window offering, an industry-first internal and external flush casement, the OW-80 Casement Window will not disappoint.
Completely bespoke, OW-80 casement windows can be manufactured up to 7sqm in over 150 RAL colours to suit your preference. Colour-coded gaskets and handles allow you to add personality to your windows if you wish.
OW-70 Casement Window
Equally sleek and contemporary, the OW-70 Casement Window may not offer as many customisation options as OW-80, however, it does offer ultra slim sightlines of just 65mm. Able to accommodate sizes of up to 4.8sqm, the OW-70 provides a modern finish for any home.
Made from the same premium grade aluminium as all Origin products, OW-70 offers the same level of security as OW-80 and comes with the same industry-leading guarantee of up to 20 years.
OW-80 vs OW-70 Casement Windows
Both OW-70 and OW-80 casement windows offer a guarantee of up to 20 years, a contemporary look and exceptional levels of strength and security. However, there are some key differences between the two window ranges, show in the table below.
Sightlines
Popular colours
Popular colour-coded handles
Glazing units
Thermally efficient
Origin Casement Windows can be specified to accommodate double or triple glazing, and thanks to a sophisticated polyamide thermal break that's built into the frame, both the OW-70 and OW-80 prevent heat transfer from the inside to outside and vice versa, ensuring they both comfortably exceed building regulations.
OW-80 windows can go the extra mile to achieve a U-Value as low as 0.9, when using sophisticated Aerogel technology - the same material that's used in space suits and space shuttles.
Our dedication to thermal efficiency means you’ll not only be able to enjoy a warm home in winter and a cool home in summer, but it means that you could even save money on your energy bills.
Highly secure
Every OW-80 Origin Casement Window is installed with Yale's renowned Encloser Locking system, and for the OW-70, it uses the Nemesis locking system, and both offer the highest level of security. The locks work by engaging cylindrical cams into the window keeps, and as a result of the ultra-secure design and manufacture, both systems are PAS 24:2016 certified and police preferred Secured By Design accredited, giving you complete peace of mind that your home is secure.
Each window can also be built with the highest grade stainless steel hinges, capable of carrying exceptionally heavy loads. Hinge guards, locking handles and crimped frames work together to further improve impenetrability of our windows, making the Origin Window collection two of the most secure on the market today.
Explore our case studies
Origin Doors and Windows Create a Wonderfully Cohesive Home
John & Sue chose Origin to create a wonderfully uniform touch to their home, helping give them the harmonious style they had been searching for.
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Origin was the Perfect Choice for this High Spec Development
Father son building team, Bob and Ben built four high spec properties using Origin products throughout, to create eye-catching homes with beautiful views to be enjoyed all year round.
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Bi-fold doors change the way this family use their coastal home
This family added an extension onto their home to make the most of the stunning coastal views that surround them. Origin's bi-fold doors was the perfect choice.
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Modern Meets Traditional with Bespoke Origin Doors and Windows
The Parker family wanted to incorporate a lot of glass into their new property so that they could fully embrace the beautiful countryside surrounding their home.
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The Perfect Home Built From Scratch
Cheryl and Martin wanted the perfect doors and windows to complement their impressive new build property. They needed quality products that would be durable and strong.
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Picturesque Views Maximised with the Origin Sliding Door
The Bakers took on this self build project in Cornwall to create their perfect home. With the help of Origin Doors and Windows, they are now able to enjoy the stunning views surrounding their home whilst enjoying maximised natural light throughout the home.
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Origin was the perfect choice for this home
"Even when sitting inside, we still feel like we're outside. There's so much light, everything is so wide open, it's like being in the garden. It’s completely transformed the whole property, we use it every day."
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A lighter and brighter home in Bude with Origin
This couple renovated their home when they saw the opportunity to create much more light and space in their gorgeous Bude-based home.
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Kitchen extension invites more light into this period property
This conservatory, the couple felt, also prevented a lot of light from coming into the back of the house and generally made the house feel dark and unnatural. So, the couple began their search for a team to help them transform their home into a light and modern space.
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Gable belle, Gable belle, Gable all the way… 🔔
After living in their dark bungalow for more than a decade, the Wrens were certain on one thing: they wanted a lot of natural light in their new home. They knew this would require more glazing but didn’t know exactly where to start.
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Home Extension Complete with Origin Doors and Windows
Bespoke doors and windows maximise the natural light in this Devonshire home and beautifully compliment recent renovations.
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Creating an Infinity Pool Effect with Origin Doors and Windows
Working closely with Freedom Bi-folds, their local Origin partner, Mr and Mrs Chard opted for a 6-door set of bi-folds in a 3+3 configuration, which provided excellent accessibility to the pool from the main house.
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A Full House of Origin Slimline Windows
After moving into their Buckinghamshire property in 2013, the Halls family decided to modernise their home with sleek grey aluminium windows - more specifically, with Origin’s new OW-70 Slimline Window.
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Chic Grey French Doors in West Sussex
After discussing their needs with Benchmark Windows, the accredited Origin Partner, the Janets opted for Origin French Doors with fixed windows either side to create lots of natural light and provide a flexible access onto their patio area.
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Stylish Anthracite Grey Front Door in Essex
Set on a quiet street amongst an array of charming houses, you simply can’t help but notice the impressive graphite grey front door, coupled with matching windows, at Steve and Nikki’s house.
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Kitchen extension framed with Bi-folding Doors
During their time living and working abroad, Jamie and Liz bought their property with the intention of one day returning to the UK and renovating it. After several years soaking up culture and learning new languages, the Parrs’ kept their promise and moved back to the UK; and their homebuilding project began.
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Floor to ceiling views with Origin Windows
Sarah and John had lived in their beautiful Kent property for almost a decade before deciding to build a garden room that they could use all year.
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Amplifying Views for this Modern Barn Wedding Venue in Cornwall
A magnificent 5 star wedding venue in Cornwall chooses Origin Bi-fold Doors, French Doors and Windows to maximise on the stunning scenery and space.
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Bringing the very best out of a barn conversion
Niall and his wife live in a beautiful barn conversion. When they bought their house, it was still the original brick barn, but included planning permission for modernisation. So, Niall got to work. With previous experience in construction, he had previously built a Victorian house and carried out various renovations on other properties. However, he had always wanted to carry out a barn conversion - and now he had his chance.
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A Beautiful Garden View, Fit for a Family
For nine years, Drew and his wife Lauren have lived in Bath. Their semi-detached house included a living room, dining room and small kitchen downstairs. However, after having two young children, Henry and Lucy, the couple needed more space for their growing family.
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Blending Contemporary with Traditional
Originally from Lancashire, Michael Baker worked as a pilot so naturally moved around a lot during his career. Now retired, he has spent the last four years living in his property in Wiltshire with his wife. Having initially lived elsewhere and commuting to and from work, they loved the local area where they worked and so the decision to move permanently was natural.
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Gold Standard for Silverwood
Located in beautiful Bridport, Dorset, 'Silverwood' is an investment property owned by Anna George, her husband Jon and their extended family. It was originally purchased as a development project back in early 2016 and was a project Amanda couldn’t wait to get started on.
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Views to Take Your Breath Away
For Ben and Annie Thompson, options for a new home in Bradworthy were limited when they began looking a little over a year ago. Ben is a dairy farmer, working seven-days-a-week with his father, meaning he is on call 24/7 so has to live close to the farm. Unfortunately, there were no properties for sale close by which left the couple with only one option – a new build. They chose to build right next to the farm, for Ben’s convenience, where they have stunning views over fields and the beautiful Devon countryside on their doorstep.
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Couple Return to Home After 44 Years with Origin Bi-Folding Doors
Beth and Jason Cole decided to build an extension when they moved into their "new" home in 2014, as it was a house that was close to their hearts. In fact, they first bought the home in 1970, the year it was built and the year the couple were married.
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Beautiful Barn Given New Lease of Life with Origin
After making the decision to move out of London to raise their young family, Nick and Anna Osborn, bought their 4 bed Aylesbury barn conversion in early 2015. The large, dark and draughty barn had not been touched since the original conversion in 1982, and needed extensive renovation work before the family could move in.
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Origin Help Make it Sixth Time Lucky for the Scott's
Finding the right home to settle down in is not always an easy task, something Sue Scott knows plenty about; “We moved homes five times within a 20 year period before finding this” – Sharon was referring to her dream home which is where she and husband Richard, along with their two children Louis, 17, and Harvey, 14, now live.
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Origin Help Rejuvenate a Traditional Home
After ten years in their Buckinghamshire home, the Tomlin's were ready to replace some of the property’s original doors and windows with new and improved ones that remained true to the look and feel of their traditional property.
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Scouting For a New Home
Winter 2015 saw Origin get involved with an incredible project for a local Scout Group who required aluminium windows and a French door to complete the build of their brand new hall.
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Origin Doors and Windows Complete Major Renovation
A recently refurbished Origin Home opened its doors (and windows) to us last week, giving an insight into their most recent renovation project, which features a largely impressive window and door display, showcasing how they are perfectly complementary in style and design to give the ultimate finish.
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A Beautiful Home Rejuvenated with Origin Windows
After choosing some bi-fold doors two years early, Paul Parker decided to complete his home with 25 new Origin windows keeping his house safe, warm and looking amazing.
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Origin Windows Bring a New Light to London Youth Centre
Origin have recently been involved in an exciting project in East London to fit out the Rainham ROYALS Youth Centre by supplying our aluminium windows, helping maximise the use of space in the roof of the building.
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Origin Shopfront Facelift
Sundaes Gelato, a Plymouth based ice cream parlour, recently opened its doors to the public for the first time after a completing a full shop renovation in an exceptional turnaround, helped by the effective manufacturing capability from Origin.
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The Origin Home: Riverside Views
A couple from Berkshire are now enjoy stunning riverside views thanks to a £170,000 renovation to their riverfront property, including Doors and Windows from Origin. The couple, from Purley on Thames, have created a huge open plan living area with breath-taking views overlooking the River Thames.
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6 Bedroom Mansion Makeover
A Buckinghamshire based property developer transformed a dated bungalow into a deluxe 6 bedroom mansion by completely rebuilding it and introducing premium quality bi-folding doors and windows, manufactured by Origin.
Read moreExplore our range of windows
What’s the difference between OW-70 and OW-80? Discover which of our aluminium windows would best suit your property
