- August 29, 2025|
- Doors|
- sandymount_admin
Key points
- Superior thermal performance: The new OS-29+ achieves U-values as low as 0.78 W/m²K whilst offering ultra-slim 29mm sightlines, exceeding building regulations without requiring thicker glass units
- Product variety: Three configurations available (OS-29+, OS-44, OS-77) offering maximum flexibility for different project requirements and homeowner preferences
- Streamlined installation process: Concealed track systems with flush stacking capability and bespoke manufacturing reduce on-site complications for installers
- Comprehensive customisation: Over 150 RAL colours, flexible configurations up to 13.2 metres wide, and premium hardware options to suit any type of home
- Industry-leading warranties: Up to 20-year guarantee on all components, manufactured in Britain with rigorous quality control standards
For trade professionals seeking a sliding door system that delivers exceptional performance whilst simplifying installation, Origin’s sliding patio door range represents a compelling proposition.
The introduction of the revolutionary OS-29+ system, alongside established OS-44 and OS-77 variants, provides installers with unmatched flexibility across residential projects. With superior U-values, extensive customisation options and comprehensive trade support, these aluminium sliding doors address the evolving demands of today’s construction industry whilst ensuring long-term client satisfaction.
Understanding Origin’s sliding door specifications
Origin’s sliding door system portfolio offers several distinct sightline configurations, each engineered for specific project requirements. The OS-29+ delivers the slimmest profile at just 29mm sightlines, maximising natural light penetration whilst still achieving exceptional thermal efficiency. The OS-44 provides a balanced 44mm mullion sightline suitable for contemporary installations, while the OS-77 offers a more traditional patio door aesthetic with its 77mm frame profile.
All systems utilise premium grade aluminium construction with polyamide thermal breaks, ensuring minimal heat loss across the entire door system. The concealed track mechanism accommodates panels up to 2.2m wide and 3m tall on the OS-29+ configuration, with maximum apertures extending to 13.2 metres for large-scale residential projects.
Thermal performance specifications
The OS-29+ system achieves U-values as low as 0.78 W/m²K whilst maintaining ultra-slim 29mm sightlines, eliminating the need for bulkier frame profiles whilst exceeding current building regulations. The advanced engineering allows for exceptional thermal performance with standard double glazing units. The OS-44 and OS-77 variants deliver U-values of 1.2 with triple glazing and 1.8 with double glazing, providing installers with flexible options to meet diverse project requirements.
Weather-tight seals and structural glazing techniques ensure consistent thermal performance across all configurations, whilst low-emissivity coatings on glazing units further reduce heat transfer.
Introducing the revolutionary OS-29+
The latest addition to Origin’s sliding glass door range, the OS-29+ represents a significant advancement in slimline door technology. This system achieves building regulation compliance with minimal 29mm sightlines, streamlining specification processes for installers whilst maintaining premium performance standards.
Key technical advantages include flush stacking capability, refined aesthetics and superior thermal efficiency. The ultra-slim 29mm sightlines maximise glazed areas, creating expansive connections between interior and exterior spaces that today’s homeowners demand.
Installation advantages of the OS-29+
The OS-29+ system incorporates several installer-focused improvements. Concealed tracks can be recessed into floor constructions for seamless finishes, whilst the streamlined profile reduces structural loading requirements. Pre-engineered components and comprehensive technical documentation ensure efficient installation processes.
The system’s flexibility extends to opening configurations, with panels capable of sliding left, right or centre-stacking depending on project requirements. This adaptability reduces the need for multiple product specifications across different installations.
Why do trade professionals choose Origin sliding doors?
Origin sliding doors offer installers guaranteed British manufacturing standards, comprehensive technical support and industry-leading warranty coverage. The company’s direct manufacturing approach ensures consistent quality control whilst eliminating third-party fabrication variables that can compromise project timelines.
Comprehensive colour and glazing options
Origin’s sliding patio door range accommodates over 150 RAL colours, including popular choices like Anthracite Grey (7016M), Jet Black (9005M) and Slate Grey (7015M). High-grade powder coating processes ensure consistent colour matching and long-term durability.
Glass specification flexibility varies by system type. The OS-29+ utilises advanced engineering to achieve exceptional thermal performance with standard glazing units, whilst OS-44 and OS-77 configurations accommodate various glass types including laminated, toughened and reflective options through installer partnerships.
Hardware and security features
All Origin sliders incorporate multi-point locking systems with stainless steel components. The OS-29+ features streamlined lever handles available in four colour options, whilst OS-44 and OS-77 systems offer combined handle-lock units or separate bar handle configurations.
Security standards meet PAS 24
requirements on OS-77 systems, with anti-snap, anti-pick and anti-drill barrel specifications providing comprehensive protection against common intrusion methods.
Configuration flexibility for every project
Origin’s sliding door system accommodates configurations from 2-panel installations through to 6-panel arrangements on OS-29+ systems. Panel arrangements can combine sliding and fixed elements, with interlocking profiles enabling secure centre-locking on larger configurations.
Maximum individual panel sizes reach 2.2m wide by 3m tall, whilst overall apertures can extend to 13.2 metres on OS-29+ installations. This flexibility ensures suitable solutions across diverse residential project types, from compact apartments to large countryside properties.
Bifold doors are available in convincing woodgrain finishes
Who are Sandymount Windows & Doors
Sandymount Windows & Doors has established itself as a leading provider of quality home improvement products across North Wiltshire and surrounding areas including Oxfordshire, Gloucester and the outskirts of Bristol. With years of experience serving both homeowners and trade customers, we specialise in delivering quality installations with exceptional customer service and competitive pricing.
As proud partners of award-winning manufacturer Origin, we offer the complete range of aluminium sliding doors, bi-fold doors and front doors, alongside high-quality aluminium windows. Our team has completed Origin’s comprehensive product knowledge and installation training, ensuring professional standards that protect manufacturer warranties.
Our accreditations and quality standards
Our commitment to completing all installations to the highest standards is backed by FENSA, BRFC and CHAS accreditations. All building and fitting work is completed in-house to ensure consistent product quality and customer satisfaction. We provide long-lasting guarantees on all installations, with comprehensive aftersales service including in-warranty repairs.
Our Cirencester showroom allows trade customers to examine our extensive product range firsthand, including the complete Origin sliding door collection. We work closely with installers to understand specific project requirements and provide tailored solutions that meet exact specifications.
Bespoke solutions for every project
At Sandymount, all installations are available in a range of bespoke design options, enabling perfect matches for any property type or project requirement. Whether you’re installing slim sliding doors in Gloucester, upgrading thermal insulation or designing wide-span openings, our Origin sliding door systems are tailored to your space and made to perform.
For trade enquiries and technical specifications, contact our team directly on 01793 230684 or email windowsanddoors@sandymount.co.uk to discuss your project requirements and access our comprehensive Origin sliding door range.
Frequently asked questions
What U-values can Origin sliding doors achieve? The OS-29+ system delivers U-values as low as 0.78 W/m²K with ultra-slim 29mm sightlines, whilst OS-44 and OS-77 configurations achieve 1.2 with triple glazing and 1.8 with double glazing units.
Which Origin sliding door offers the slimmest sightlines? The OS-29+ provides the slimmest profile at just 29mm sightlines, maximising glazed areas and natural light penetration whilst maintaining structural integrity and thermal performance.
What maximum panel sizes are available? Individual panels can reach 2.2m wide by 3m tall on OS-29+ systems, with overall apertures extending to 13.2 metres for large-scale installations across multiple panels.
Do Origin sliding doors meet current building regulations? All Origin sliding door systems exceed current UK building regulation requirements for thermal performance, with the OS-29+ achieving compliance using ultra-slim frame profiles and advanced engineering.
What warranty coverage is provided on Origin sliding doors? Origin provides up to 20-year guarantees on all door components including frames, running gear, gaskets, seals and locking mechanisms, with glass units covered by separate manufacturer warranties.
