Origin OS29+ Aluminium Sliding Door

Origin OS29+ Aluminium Bi-Fold Door

The Origin OS-29 Plus Sliding Door represents the next evolution in aluminium sliding design — refined, functional, and made for modern living. With elegantly slim sightlines and an advanced flush-stacking mechanism, every panel glides effortlessly and aligns perfectly when opened, creating a truly seamless transition between your indoor and outdoor spaces. Built from premium aluminium and precision-engineered for performance, the OS-29 Plus delivers exceptional strength, efficiency, and style, all backed by Origin’s trusted long-term guarantee. Perfect for homeowners who value open-plan living, uninterrupted views, and smooth operation, the OS-29 Plus redefines the way you connect with your surroundings.

Key Benefits

Ultra slim aluminium profiles maximise natural light and create wide, uninterrupted views
Innovative flush-stacking design ensures panels sit neatly in line when open, saving space and enhancing the clean, modern aesthetic
U-values as low as 0.78 W/m²K, providing excellent thermal efficiency and year-round comfort
Precision-engineered sliding system for effortless, smooth operation every time
High-security multi-point locking system and reinforced aluminium frames for total peace of mind
Fully bespoke design, choose your ideal configuration, track layout, and from over 150 RAL colours including dual-colour options
Durable powder-coated aluminium for a premium finish that’s low-maintenance and weather-resistant
Backed by Origin’s 20-year guarantee, ensuring lasting quality and confidence in performance

Why Choose Essex Bi-Fold?

30 years experience

Over 30 years of industry knowledge and 2,500+ successful installations

Origin Premium Partner

Origin Premium Partner and approved Korniche installer - trusted for quality

Precision Installation

With precision installation, we fit aluminium systems that enhance your home and deliver lasting performance.

Workmanship

Backed by a workmanship warranty and dedicated aftercare service for complete peace of mind

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Jeanette White

"The Bi-fold doors are amazing. The showroom has a few full set-ups which allowed me to have a good look and try it out before deciding. "

Raymond Law

"We visited Essex Bi-Fold doors and met with Clive and were impressed with there showroom and expertise. The doors we ordered look great, and the quality is excellent. "

Lester Wadden

"Essex Bi-fold Replaced our two old Kitchen roof windows with new Korniche roof lanterns. The whole experience, from initial enquiry to completion of installation, was excellent. The design of the new windows is so much more efficient, allowing more light into the kitchen."

Vicky Knight

"Wonderful experience from start to finish. We purchased Origin Bi-folds from Essex Bi-Folds August 2025. Easy to purchase, great showroom with lots of options, good price, amazing quality. "

The Bootlegger

"Great service and communication. OS-29 sliding door went in without issues. We’re really glad we found Essex Bi Fold as they’ve been on point. Loving the door quality and look. Feels very strong, door glides open with ease. 10/10."

Karen Scarsbrook

"Highly recommend this company. Everyone we dealt with from Lee in the office, his manager and the installers were extremely nice and super helpful - going the extra mile to get the finish we desired. "

Paul Marsh

"Absolutely fantastic team Clive Lee and the guys couldn't do enough for you. The difference its made to our lives is insurmountable."

Recent Projects

Real projects, real results - crafted with precision and care

Explore our latest projects featuring bi-fold doors, sliding doors, entrance doors, and windows - transforming homes with light, space, and modern design, all crafted with precision and care.

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A Modern Touch for a Countryside Classic

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Open-Plan Garden Transformation

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Beaumont Hall Barns Restoration

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High Spec Essex Development

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Chelmsford Conservatory Transformation

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Light-Filled Kitchen Extension

Questions? We’re Here to Help

Find answers about our services - or ask us anything you don’t see.

What makes the Origin OS-29 Plus different from other sliding doors?

The OS-29 Plus stands out with its advanced flush-stacking mechanism, allowing the panels to align seamlessly when open for a cleaner, more refined finish. Combined with slim profiles and precision engineering, it delivers smooth performance and contemporary style.

How energy efficient is the OS-29 Plus?

It features thermally broken aluminium profiles and high-performance glazing to achieve excellent U-values of 0.78 W/m²K. This helps maintain a comfortable indoor temperature, reduce heat loss, and improve your home’s energy efficiency.

Can the OS-29 Plus be customised to fit my home?

Yes. Each door is completely bespoke — available in multiple configurations, panel sizes, and over 150 RAL colours, including dual-colour options to complement both your interior and exterior design.

How does the flush-stacking system benefit homeowners?

When opened, each panel neatly stacks in line, saving valuable space and providing a more minimal, balanced look. This is ideal for creating wide openings and enhancing the connection between indoor and outdoor spaces.

Is the OS-29 Plus secure?

Absolutely. Every OS-29 Plus door comes equipped with a robust multi-point locking system, reinforced frames, and precision-engineered hardware, all tested to meet or exceed UK security standards.

What maintenance does the OS-29 Plus require?

Thanks to its premium aluminium frame and durable powder-coated finish, the OS-29 Plus is virtually maintenance-free. Occasional cleaning of the tracks and glass will keep it operating and looking like new for years.

Can the OS-29 Plus accommodate large openings?

Yes. The OS-29 Plus is ideal for expansive openings, with large panel capabilities that maximise your view while maintaining structural integrity and smooth operation.

Why choose Essex Bi-Fold for your Origin OS-29 Plus installation?

With over 30 years of expertise and as an Origin Premium Partner, Essex Bi-Fold ensures expert installation, precise detailing, and dedicated aftercare. Our installations across Essex and the South East are backed by full workmanship warranties and manufacturer guarantees for complete peace of mind.

Origin OS29+ Sliding Door

Origin OS29+ Aluminium Bi-Fold Door

Key Benefits

Why Choose Essex Bi-Fold?

Start My Quote

Recent Projects

Real projects, real results - crafted with precision and care

Questions? We’re Here to Help

Find answers about our services - or ask us anything you don’t see.

What makes the Origin OS-29 Plus different from other sliding doors?

How energy efficient is the OS-29 Plus?

Can the OS-29 Plus be customised to fit my home?

How does the flush-stacking system benefit homeowners?

Is the OS-29 Plus secure?

What maintenance does the OS-29 Plus require?

Can the OS-29 Plus accommodate large openings?

Why choose Essex Bi-Fold for your Origin OS-29 Plus installation?