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Aluminium Corner Pocket Sliding Doors in Cumbria. Free quote
Survey, Specification & Installation
Corner pocket sliding doors represent one of the most refined aluminium glazing solutions available for contemporary homes, extensions and architect-led projects. When designed and installed correctly, they allow large glazed panels to slide fully out of view into concealed wall pockets, creating a completely open corner with no visible posts or interruptions.
At Windows in the Lakes, we specialise in the design, survey and installation of Cortizo corner pocket sliding door systems for projects where precision, planning and execution genuinely matter. These are complex, bespoke systems that must be considered early and delivered correctly. They are not a standard upgrade to a typical sliding door.
What Is a Corner Pocket Sliding Door?
A corner pocket sliding door is a system where one or more sliding panels disappear entirely into a purpose-built pocket within the wall. In a corner configuration, this allows two elevations of glazing to slide away, leaving a fully open corner with no fixed mullion or structural post visible.
The result is:
- Completely uninterrupted views
- Seamless indoor–outdoor connection
- A clean, architectural opening with no visual compromise
When closed, the doors retain slim sightlines and strong thermal performance. When open, they transform how the space functions.
How a Corner Pocket Sliding Door works - Real Example
Project installed in Barrow, Cumbria in 2025
Corner pocket sliding doors are designed so the sliding panels disappear fully into a concealed wall pocket. When open, there is no visible frame or fixed corner post, creating a completely uninterrupted opening between inside and outside.
Because the doors slide into a structural pocket, correct planning is essential. The pocket, track position, floor build-up and structural support all need to be considered before manufacture and installation.
This is why corner pocket doors must be surveyed and specified correctly from the outset.
We produce highly technical drawings for all of our Corner Pocket Sliding Door projects, and can liaise with both builders and architects to ensure a seamless experience for the homeowner.
Installation is completed by Aluminium specific experts who understand the nuances of a Corner Pocket Sliding Door system.
SEE AN OPERATIONAL VIDEO FROM THIS PROJECT BELOW
Designed for Cumbrian Homes & Landscapes
Cumbria presents a unique mix of architecture, setting and environmental demands. From exposed rural locations and stone-built properties to contemporary extensions overlooking open countryside, corner pocket sliding doors must be specified with far more care than in sheltered urban settings.
We regularly design and install corner pocket systems for:
- Modern rear extensions to traditional stone homes
- Rural new builds with open aspects
- Architect-led renovations in exposed locations
- Properties where views and connection to landscape are central to the design
In Cumbrian homes, considerations such as wind exposure, drainage, threshold detailing and structural coordination are critical. These factors directly influence system choice, pocket design and installation sequencing.
Our survey-led approach ensures the system is suited not just to the design, but to the location and conditions it will operate in year-round.lanners, architects, and conservation officers look for: slim frames, correct proportions, minimal modern intrusion.
Where required, we can support your project with:
• Detailed product specifications
• Section drawings and visuals
• Advice on sightlines and glazing layouts
• Configuration guidance to suit planning constraints
Why We Use Cortizo Systems
We specify Cortizo corner pocket sliding door systems because they are engineered to cope with the structural, mechanical and environmental demands that this type of glazing places on aluminium.
Cortizo systems are known for:
- Slim, consistent sightlines
- High structural integrity for large, heavy glass panels
- Smooth, controlled sliding operation
- Proven weather performance in exposed environments
- Flexibility for bespoke architectural layouts
Corner pocket doors place far greater stress on tracks, hardware and tolerances than standard sliders. Cortizo systems are designed with this in mind.
Early Design & Structural Considerations
Corner pocket sliding doors are not something to “add later” to a design. They require early coordination with the wider build.
Key considerations include:
- Structural support and load paths above the opening
- Pocket wall construction and internal finishes
- Track positioning, drainage and weather management
- Threshold detailing for flush internal floors
- Glass panel sizes, weights and handling routes
These systems must be integrated into the building design from the outset. Retrofitting or compromising on construction details is where problems begin.
For this reason, every corner pocket project we undertake starts with a detailed technical discussion and on-site survey before final specification.
Corner Pocket Sliding Doors vs Standard Sliding Doors
Corner Pocket Sliding Doors
- Panels slide fully into concealed wall pockets
- No visible corner post when open
- Completely uninterrupted opening
- Requires early structural planning
- Best suited to new builds and extensions
- Higher design and installation complexity
Standard Sliding Doors
- Panels slide behind fixed glazing
- Visible frame or corner post remains
- Partial opening only
- Minimal structural changes required
- Suitable for most retrofit projects
- Lower installation complexity
Ideal Applications
Cortizo corner pocket sliding doors are best suited to projects where design intent and execution quality are priorities.
They are commonly specified for:
- Contemporary extensions
- High-end residential new builds
- Open-plan living spaces
- Architect-designed homes
- Properties where minimal visual obstruction is essential
They are particularly effective where the aim is to remove the boundary between inside and outside without introducing heavy frames or fixed posts.
Performance Without Compromise
Despite their minimal appearance, Cortizo corner pocket sliding doors deliver strong real-world performance when specified correctly.
Depending on configuration, systems can offer:
- High-performance double or triple glazing
- Thermally broken aluminium profiles
- Excellent resistance to wind and driving rain
- Smooth operation despite large panel sizes
- Secure multi-point locking
Design-led glazing does not have to mean compromised comfort or security.
Our Survey-Led Installation Process
Corner pocket sliding doors leave no margin for error. Tolerances are tight, glass panels are heavy, and sequencing matters.
Our process includes:
- Detailed site survey and feasibility assessment
- Coordination with builders, architects and engineers where required
- Technical specification tailored to the project
- Controlled installation by experienced teams
- Final adjustment, testing and handover
This structured approach reduces risk and ensures the system performs as intended for the long term.
Installation Expertise Matters
Even the best sliding door system will fail if installed incorrectly.
Corner pocket installations require:
- Accurate setting out
- Perfect alignment of tracks and pockets
- Careful handling of large-format glazing
- Experience with complex sliding mechanisms
Our installation teams are accustomed to working with large aluminium panels and understand the importance of precision at every stage.
Is a Corner Pocket Sliding Door Right for Your Project?
Corner pocket systems are not suitable for every property or budget. They require space, structural planning and a willingness to design the building around the glazing rather than forcing the glazing into an unsuitable opening.
We will always advise honestly on:
- Whether a corner pocket system is appropriate
- Alternative solutions if constraints exist
- How to achieve a similar aesthetic where required
Our role is to specify the right solution, not simply the most dramatic one.
Discuss Your Project
If you are considering Cortizo corner pocket sliding doors for your home or project in Cumbria or beyond, early involvement is key.
We are happy to discuss feasibility, design intent and technical requirements before decisions are finalised.
Contact Windows in the Lakes to arrange a consultation or technical discussion on the form below: