Origin Approved Installer · FENSA Registered
Origin Sliding Doors — Buckinghamshire & Berkshire
British-engineered in-line aluminium patio sliders across three Origin systems. OS-29+ is the ultra-slim flagship with a 29 mm interlock and whole-window U-values to 0.78 W/m²K. OS-44 is the 44 mm mid-tier. OS-77 is the 77 mm wide-profile system for the largest panels. All PAS 24 certified, all made in Origin's High Wycombe factory. Vitrum Solutions installs the Origin sliding range across Buckinghamshire, Berkshire, Oxfordshire, Surrey and Hampshire.
Origin Sliding Specifications
Systems
OS-29+ · OS-44 · OS-77
Interlocks
29 mm · 44 mm · 77 mm
Best Uw
0.78 W/m²K (OS-29+ with thermal upgrade)
Configurations
Three sightlines, flush-stacking option available
The 3 Origin Sliding Systems
OS-29+, the slim flagship slider
Origin's current ultra-slim sliding door. 29 mm interlock and a whole-window U-value to 0.78 W/m²K with the thermal upgrade. The visual brief is near-frameless glass. The central interlock between two sliding panels reads as a thin vertical line rather than a frame element. The premium choice for residential rear extensions and architect-led projects where the sliding door needs to disappear into a panoramic glass wall.
OS-44, the mid-range slider
Origin's middle sliding tier. 44 mm interlock, a more substantial frame line than OS-29+, with the build-budget and engineering-envelope advantages that come with the wider profile. Useful where the visual brief is contemporary-but-not-minimal, where the panel size sits in the standard residential range, or where the build programme has pre-specified OS-44.
OS-77, the wide-profile slider
Origin's widest sliding system. 77 mm interlock for the largest panel sizes and highest wind-load exposures. The choice when the architectural brief calls for very large glass with the structural envelope to back it up. Same PAS 24 certification, same up-to-20-year Origin guarantee, same UK manufacture in Origin's High Wycombe factory.
In-line patio sliders, OXXO and OXXXXO supported
Origin's sliding range is in-line patio sliders. Configurations supported across all three systems include OX, XX, OXX, XXX, OXXO and OXXXXO: single sliding pane against a fixed pane, two sliding panes, three or four panel sets with fixed and sliding combined. A flush-stacking track option is available where the architectural brief calls for the open door to disappear flush against an adjacent wall pocket.
Up to 20-year Origin frame guarantee
Origin's commercial signature: a guarantee of up to 20 years on the aluminium frame. Sits alongside our own 10-year FENSA-registered, CPA insurance-backed installation guarantee. The combined cover is one of the strongest in the UK premium market.
Sliding on Our Range
Origin sliding systems feed into our aluminium sliding doors product page. The configurator handles the system choice and the per-elevation panel layout.
Origin Sliding Doors in real homes
OS-29+ delivers maximum glass with a 29 mm interlock. Three contexts: residential lounge, concealed-track configuration, and the slim contemporary offset that distinguishes the OS-29+ from its 44 mm and 77 mm siblings.
Hardware: handle finishes for the OS-29+
Origin's Signature Knurled All-In-One Offset handle is the most-specified hardware on the Sliding Door range. The recessed knurled grip pattern matches the External Door family for a cohesive look across openings.
Signature Knurled All-In-One Offset
The flagship sliding-door handle. Recessed knurled grip pattern, matches the External Door family.
Signature Knurled — alternate finish
Available in six finishes total: Antique Brass, Brushed Black, Brushed Bronze, Rose Gold, Satin Brass, Satin Stainless.
Get a free quote for Origin Sliding Doors
Free no-obligation written quote. Fast response times. FENSA registered with a 10-year CPA insurance-backed guarantee. Serving Buckinghamshire, Berkshire, Oxfordshire, Surrey, Hampshire, Hertfordshire & West London.
Other Origin Systems
Beyond sliders, Origin's aluminium range covers bifold doors and casement windows, all supplied and fitted by Vitrum Solutions.
Origin sliding doors across Buckinghamshire & Berkshire
Vitrum Solutions installs Origin in-line sliding doors throughout Buckinghamshire and Berkshire, including Beaconsfield, Gerrards Cross, Amersham, Marlow, Windsor, Ascot and Maidenhead. Origin manufactures the OS-29+, OS-44 and OS-77 at its own factory in High Wycombe, Buckinghamshire, within our service region, for short lead times on local installations. Every install is FENSA registered with a 10-year CPA insurance-backed guarantee alongside Origin's up-to-20-year frame guarantee.
Origin Sliding — Frequently Asked Questions
What is the difference between OS-29+, OS-44 and OS-77?
All three are premium Origin aluminium in-line patio sliders, all PAS 24 certified, all made in Origin's High Wycombe factory. The difference is the interlock: the visible vertical meeting point where two sliding panels overlap. OS-29+ has a 29 mm interlock (Origin's slim flagship, Uw to 0.78 W/m²K with thermal upgrade), OS-44 has a 44 mm interlock (mid-range), OS-77 has a 77 mm interlock (the widest profile, used for the largest panel sizes and highest wind-load exposures). Choose OS-29+ where the architectural priority is unbroken visual glass; OS-77 where the panels are structurally large; OS-44 in the middle.
Are Origin sliding doors lift-and-slide?
Origin's sliding range is in-line patio sliders, not lift-and-slide. Lift-and-slide describes a different mechanism (the sash is mechanically lifted clear of the threshold seal during operation, then lowers back onto the seal when closed) used most often by Schuco and Cortizo on their largest sliding panels. Where the project specifies lift-and-slide we install Schuco or Cortizo; where in-line sliding meets the brief we install Origin. We walk you through both at the survey stage.
What configurations can Origin sliders open in?
Origin's Contemporary Collection sliding range supports three sightlines (OS-29+ at 29 mm, OS-44 at 44 mm, OS-77 at 77 mm). The new OS-29+ system includes a flush-stacking option. The exact panel count, layout and stacking direction for your opening are confirmed at the survey stage based on the architectural brief.
What U-values do Origin sliding doors achieve?
Origin's slimmest slider, the OS-29+, achieves whole-window U-values to 0.78 W/m²K with the thermal upgrade, comfortably exceeding the Approved Document L 1.4 W/m²K maximum for replacement doors. The PDF brochure quotes a Collection-level U-value range; per-system attribution to OS-44 and OS-77 is confirmed at the survey stage. Specific Uw is calculated per opening based on the chosen system, glazing unit, frame size and thermal spec at quote stage.
How big can an Origin sliding panel be?
Origin's Contemporary Collection brochure describes the Sliding Door as engineered for 'expansive glass panels' and 'maximum light'. Specific panel sizes, layouts and maximum weights depend on the chosen sightline (OS-29+ at 29 mm, OS-44 at 44 mm or OS-77 at 77 mm) and are confirmed at the survey stage based on the opening and the project's structural envelope.
Can I get Origin sliders in any RAL colour?
Yes, the full RAL palette plus dual-colour inside/outside finishes. On an in-line patio slider the visible frame is a thin perimeter around large panes, so the colour reads as a defining graphic line. The slimmer the chosen sightline (OS-29+ 29 mm, OS-44 44 mm, OS-77 77 mm), the more the finish functions as architectural punctuation against the glass. Powder-coated at Origin's 10-stage Bicester facility on the aluminium substrate itself, so it does not fade or peel over decades.
Other Systems We Install
We supply and fit the full premium-brand glazing range across the Home Counties. Compare specifications and pricing across our brand hubs.
Cortizo
Premium Spanish aluminium
Visit Cortizohub →Schuco
German aluminium systems
Visit Schucohub →Rehau
A-rated uPVC profiles
Visit Rehauhub →Palladio
Irish monocoque composite doors
Visit Palladiohub →Gerda
Polish RC2 steel security doors, RC3 upgrade on Optima/Thermo Premium
Visit Gerdahub →Korniche
UK-made aluminium roof lanterns
Visit Kornichehub →SteelR
UK-made RC4 bespoke steel front doors
Visit SteelRhub →Quote for Origin sliding?
Free quote · FENSA registered · Origin frame guarantee + 10-year CPA insurance-backed installation guarantee
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