Doors · Aluminium
Sliding Doors
Ultra-slim sliders for open elevations.
What are sliding doors?
Sliding doors are large glass panels that slide past one another on a track. Because the panels are big and the meeting frames slim, the view is interrupted as little as possible.
We installed two Cortizo Cor Vision sliding doors in York in December 2025.
Where it works best
- Rear extensions
- Garden rooms
- Whole-house glazing projects
Why people choose it
- Minimal interruption across wide openings
- Large panes with slim interlocks
- Suited to rear extensions and garden rooms
Design options
Decided at specification
- Panel configuration
- Two, three or more panels, with fixed and sliding panels arranged around how the room is used.
- Opening width
- Planned against the structural opening and any steelwork.
- Threshold
- Low or flush thresholds considered alongside drainage and weather exposure.
- Sightlines
- Slim interlocks between panels to keep the glass continuous.
Technical figures — sizes, thermal and security ratings — are confirmed for your specific specification rather than quoted generically. Systems used include Cortizo Cor Vision.
Suits these homes
Planning & conservation
Whether consent is needed depends on the property and the local authority. We check before specifying.
Where we’ve used it
Compare
Sliding vs bifold doors
Sliding for the view; bifold for the fully open summer room.
| Feature | Sliding | Bifold |
|---|---|---|
| Opening | Part of the width (panels overlap) | Almost the full width |
| Frame when closed | Less — larger panes | More — a frame every panel |
| Space needed | None beyond the track | Folded stack at the side |
| Best for | Views and light, wide openings | Opening a room to the garden |
Questions
Are sliding doors better than bifold doors?
Neither is better overall. Sliding doors give bigger panes and slimmer frames; bifolds can open almost the full width. The choice depends on the opening, the view and how you use the space.
How much do sliding doors cost?
There is no meaningful fixed price. Cost depends on size, configuration, glass, colour, hardware, access and the complexity of installation. We provide a written quotation against an agreed specification, typically within 48 hours of having the details we need.
Related guides
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Specifying this product?
Technical information, drawings and specification support for architects and builders.
Professional supportDiscuss your project
Tell us about the property and the openings. Price depends on size, configuration, glass, colour, hardware, access and installation — we quote against an agreed specification.