Origin have launched the OW80+ Tilt and Turn Window. It’s a significant moment for a company that has built its reputation primarily on bifold doors and in recent years casement windows (the OW70 Window by far their best product in our view) with pretty standard internal door and screening systems and the Soho and Contemporary Collections.
But with the tilt and turn window being one of the most established and widely used window types across Europe, where inward-opening windows have been the norm for decades, much of the fenestration industry will likely be asking what differentiates the OW80+ from the many already established tilt and turn systems available across the UK and Europe.
Tilt and Turn Windows are a fantastic alternative to casements. Their multi-functional opening makes them ideal for high level apartments, windows leading out to flat roofs and they’re capable of larger sizes than outward opening windows, right up to the size of a standard door.
We haven’t yet had the opportunity to see the OW80+ Tilt and Turn in person to carry out a full review, so this is very much a first impressions piece based on Origin’s published specifications, their spec guide, and their marketing material. We’ll follow up with a full hands-on review in due course.
What Origin Are Saying
Origin’s CEO, Neil Ginger, describes the OW80+ Tilt and Turn Window as “a statement of craftsmanship and technical excellence” and “the next chapter in Origin’s legacy of innovation and uncompromised quality.” That’s bold language, and it sets a high bar and one that the published specifications need to live up to.
The marketing leans heavily into lifestyle messaging. Phrases like “a new way to experience your home” and “versatility, designed around the way you live” are classic Origin. It’s polished, aspirational, and beautifully presented. Origin’s marketing team is arguably the best in the UK fenestration industry, and this launch is no exception. The product page looks stunning.
As always, the specifications and real-world execution are what ultimately matter.
The OW80+ Tilt and Turn Window Specifications
The OW80+ Tilt and Turn Window features an 84mm frame and sash depth with a polyamide thermal break. It’s available in both single and dual casement configurations and can be specified across window and door-sized apertures, with Origin highlighting Juliet balcony applications. We would agree with this. A tilt and turn window is often a better solution than inward opening doors.
The thermal performance ranges from a U-value of 1.4 W/m²K with standard double glazing (Planitherm Total+) down to 0.83 W/m²K with the highest-specification triple glazing (two panes of Planitherm ONE with a 0.5 centre pane U-value). Those numbers are decent, but it’s important to note that the headline 0.83 figure is the absolute best-case scenario with the most expensive glass configuration. The standard double-glazed option at 1.4 only just meets the current Building Regulations replacement limit.
Maximum sash dimensions are 2,260mm high by 1,200mm wide, with a maximum sash area of 3.0m² and a maximum sash weight of 90kg.
Beware the large size claims
Origin say on their Size Limitations table:
Frame Height / Width — Min: 325mm, Max: 4,800mm
Set Height / Width — Max: 4,800mm / 4,800mm
Frame Area — Max: 7m²
Like many aluminium systems, the published maximum sizes for the OW80+ Tilt and Turn represent theoretical manufacturing capabilities rather than what will necessarily be suitable for every project.
In many cases, oversized glazed openings may be better suited to curtain walling systems rather than conventional window sections, particularly on exposed elevations or multi-storey applications.
That’s why experienced installers and fabricators should always carry out project-specific calculations before quoting for unusually large glazing sizes. Very large fixed glazing sections require careful consideration of:
- Wind loading
- Glass weight
- Installation access
- Glass handling from manufacturer to installation
- Transport logistics
- Frame deflection
- Structural support
Weather performance testing returned Class 4 air permeability at 600Pa, Class 5A water tightness at 300Pa, and Class A5 wind loading at 1,200Pa. The window has achieved PAS 24:2022 security accreditation, although no test report has been published. So the size and configuration that was tested, and whether any reinforcement or modification was required to pass, remains unknown. Secured by Design certification is listed as “awaiting certification.”
Glazing options span from 28mm to 46.8mm units, and the window is available in over 150 RAL colours with marine-grade powder coating. Bear in mind as always marine grade is not the same as a fully insured guarantee for a coastal location, often requiring a recorded routine cleaning schedule.
Additional options include three cill sizes (155mm, 180mm, and 225mm), 15mm and 35mm frame extenders, coupling, concealed drainage, astragal bars, and trickle vents in either the sash or the frame extender.
A Word on Origin’s Marketing Claims
Origin are a substantial and highly reputable company, and they do make good products. But some of the language used in their marketing deserves closer scrutiny, because it might give the impression of exclusivity or superiority where none exists.
Phrases like “premium aluminium” sound impressive, but aluminium used for doors and windows is a standard grade across the industry. Origin’s aluminium is no more premium than any other reputable system. The same applies to their Qualicoat-accredited powder coating . All reputable powder coating companies in the UK operate to the Qualicoat standard, and the Qualicoat website confirms this. Qualicoat is not a differentiator; it’s an industry baseline.
It’s also worth noting that Origin supply their windows unglazed to their dealer network. The quality of the sealed glass unit that ends up in your window is determined by the installer’s glass supplier, not by Origin. So when Origin talk about thermal performance figures, those are achievable numbers based on specific glass specifications. But the actual performance of your window will depend on the glass your installer sources as well as their own technical knowledge. So do ensure that the glass you get is the right type to ensure your project meets Part L of Building Regulations, for both replacement and new build projects.
The 20-year guarantee also warrants careful reading. The headline is reassuring, but the detail of what it covers, and what it doesn’t, matters enormously. Always read the terms and not just the headline.
Origin OW80+ Tilt and Turn. How It Compares to other brands
Here’s where it gets interesting. When you put the OW80+ Tilt and Turn alongside established tilt and turn systems from other systems, the picture becomes clearer. We’ve already compared it against the published dimensions of multiple brands including:
Schüco, Reynaers Masterline, Smart Systems Alitherm 400, Cortizo Cor80 and other Cortizo Variants, AluK C70 and the 58BW, Alumil S77, Senior Architectural, Jack Aluminium and Exlabesa.
We’ve already prepared a comprehensive table of sightlines to how Origin OW80+ Tilt and Turn window compares to virtually every major brand, but will include this once we’ve seen the window in a showroom and actual installation environment.
The numbers tell a clear story. The OW80+ Tilt and Turn’s 101mm window sightline is one of the widest in this comparison. Only the Schüco AWS 75.Si+ is wider at 107mm, and that’s a thoroughly proven premium European system with the performance credentials to justify it. Most established tilt and turn systems sit comfortably between 66mm and 93mm.
The 166mm opening-to-opening mullion sightline is similarly chunky. The Aluk 58BW achieves the same configuration with much less bulk and the Jack Aluminium TW70 manages 112mm. At the other end of the scale, only the Schüco at 190mm is wider than Origin and Schüco is a far more established system in the architectural and commercial sectors, with decades of proven specification history.
The 84mm frame depth is on the deeper side nowadays but they’ve done this to integrate with their existing OW80 casement. Most systems operate at 70–80mm, but that is not that big a deal.
In plain terms, this is not among the slimmest tilt and turn windows currently available.
The Handles. Another Missed Opportunity
Origin offer two handle options for the OW80+ Tilt and Turn: the Rounded Handle (available in four metallic finishes and three colour options) and the Gallery Handle in stainless steel. Both are locking variants with non-locking options available. The Gallery handle is a door handle to match other Origin products in the overall project.
Whilst perfectly functional, In our opinion, they look dated compared with some newer concealed handle systems now available. In a market where several manufacturers are offering concealed handles and hidden sash designs that give their tilt and turn windows a clean, uninterrupted aesthetic, Origin’s handle offering feels like a step behind rather than a step forward.
For a product being positioned as “a statement of craftsmanship and technical excellence” and “the next chapter in Origin’s legacy of innovation,” the hardware choices arguably don’t match the ambition of the marketing language.
The Door and Window Experts Website View
Let’s be clear. Origin will no doubt manufacture a well-made window. They’re a highly reputable company with good quality control and strong dealer support. Their marketing is exceptional, and their dealer network is extensive. This also means that if you do want an Origin product, the sheer number of dealers gives you genuine scope to shop around on price.
But to bring a tilt and turn window to market this late in the game, when the format has been an established standard across Europe for decades, when so many well-proven systems already exist, and position it as a landmark innovation? The fenestration sector may question what genuinely differentiates the OW80+ from the many established tilt and turn systems already available.
The sightlines are wide, the frame is deep, the handles look dated, and the specifications, while perfectly adequate, are not exceptional when measured against the competition. Some homeowners may come away with the impression that this is a newer concept than it actually is. But homeowners looking for a tilt and turn window should know there are slimmer, more contemporary, and more competitively priced alternatives already available.
The Door and Window Experts Pick
If you’re considering a tilt and turn window, by all means go with the Origin. But if you want slimmer, arguably more contemporary and with handles that represent current tastes, our recommendations based on what’s available in the UK market would be:
Cortizo Tilt and Turn
There are many variants of Cortizo Tilt and Turn windows available today in both Cor-70, Cor-80 and even their new steel look system. Slimmer in appearance, likely to be more competitively priced, and available with some very modern and innovative handle options.
Cortizo offers an excellent tilt and turn system with an 80mm frame depth, slim 66mm sightlines, and the option of concealed hardware and hidden sash designs. A genuinely contemporary product that looks the part.
Alumil S77
Whilst you may not be aware of the brand, Alumil windows have been specified by Foster and Partners, are chosen by Berkeley Homes and other premier housebuilders . They also have a great reputation in providing tilt and turn windows to blocks of residential apartments.
An excellent tilt and turn system with a competitive 80mm frame depth, slim 66mm sightlines, and the option of concealed hardware and hidden sash designs. A genuinely contemporary product that looks the part.
At just 77mm frame depth and a remarkably slim 67mm sightline, the Alumil S77 offers outstanding aesthetics in a well-engineered package. A strong contender for anyone who wants their tilt and turn window to look as good as it performs.
Reynaers Masterline
Reynaers have a pedigree stretching back decades, and the Masterline 8 is arguably one of the most comprehensive tilt and turn options available in the UK market.
Available in four design variants , Functional, Block, Renaissance, and Deco. it can be configured to suit everything from contemporary new builds to traditional renovation projects.
The frame depth sits at 87mm (or 77mm in the Functional/Block variants), putting it in similar territory to the Origin OW80+, but the breadth of the system is where it excels.
It has concealed hardware, comes in three insulation levels and suitable for low-energy and even passive house projects. It’s a serious, proven system with an enormous range of configurations.
Alitherm 400 Tilt and Turn
The Alitherm 400 is a newer addition to the well-established Alitherm 400 range, which already covers casement, flush, and heritage window styles as well as matching doors.
With a 70mm frame depth and sightlines from around 93mm in tilt and turn configuration, it’s a slimmer, lighter system than Origin’s OW80+ and much cheaper too.
A key advantage for installers is Smart’s innovative quick-glaze bead system, which significantly reduces fitting time on site. The system is PAS 24:2022 compliant and fully meets current Building Regulations. For UK homeowners, the Alitherm 400’s biggest strength is availability. Smart Systems has an enormous fabricator and installer network across the country, meaning competitive pricing and good aftermarket support.
This is a first impressions review based on published specifications and marketing materials. We will update this article with a full hands-on review once we’ve had the opportunity to see the Origin OW80+ Tilt and Turn in person.
Have questions about tilt and turn windows? Get in touch with the Door and Window Experts team . We’re here to help you find the right window for your home.
