8 products
Aluminium Sliding Doors
Slimline aluminium sliding and lift-and-slide doors with maximum glass area, on Schüco and Cortizo systems.
Choosing aluminium sliding doors
Aluminium sliding doors keep large panes of glass in place and glide one behind another, so the view stays clear even when the doors are shut and nothing swings into the room.
Our range covers the main ways to do that. Standard sliding systems such as the Schüco ASS 50 and ASE 60/80 suit most homes and offices. Lift-and-slide doors such as the Schüco ASS 70.HI lift the leaf off its seals to move and lower it to seal, which allows heavier, better-insulated leaves. Slimline systems — the Cortizo Cor Vision, the Cor Vision Plus and the Schüco ASS 77 PD panorama door — cut the visible frame to between 20mm and 30mm for a wall of glass.
Choosing between them comes down to three things. The size and weight of the panes: standard sliders suit most patio openings, while lift-and-slide and the Cor Vision Plus carry the very large, heavy leaves of a full-width glass wall. How much frame you want to see: from about 20mm on the Cor Vision to the wider, more robust sections of the insulated Schüco systems. And the energy target: in England a new or replacement external door in an existing home needs a U-value of 1.4 W/m²K or better under Approved Document L, and the glass in a door must be safety glass.
Every set is made to measure and installed across London and the South East, or supplied only to the trade, made to your sizes. If you are deciding between sliding and bifold doors, our patio doors page compares the two.
The sliding doors range
Get a quote →Aluminium Patio Doors
Sliding or bifold, made to measure. The two ways to open a wall onto a patio, and how to choose between them.
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Schüco ASS 50 Sliding Doors
Thermally insulated sliding and lift-and-slide system with narrow face widths and up to three tracks.
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Schüco ASE 60/80 Sliding Doors
Sliding and lift-and-slide in 60mm and 80mm depths, with 13 opening types and Passive House-level insulation at 80mm.
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Schüco ASS 70.HI Sliding Doors
Highly insulated lift-and-slide doors with leaves up to 3m by 3m.
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Schüco ASS 77 PD Panorama Sliding Doors
Very large panes with centre sections from 30mm and the outer frame hidden in the structure.
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Cortizo Cor Vision Sliding Doors
Slimline sliding doors with a 20mm visible section and up to 94% glass, including mullion-free corners.
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Cortizo Cor Vision Plus Sliding Doors
The larger Cor Vision for very big openings: 25mm sightlines, glass up to 54mm and motorised sashes up to 700kg.
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Supply Only Aluminium Sliding Doors
Supply-only Schüco and Cortizo sliding doors for installers and builders, made to your sizes.
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Aluminium Sliding Doors: your questions answered
How much of the opening does a sliding door open up?
A sliding door glides one pane behind another, so a typical two-pane set opens roughly half the width — but you keep large, uninterrupted panes of glass when closed for the clearest view.
How slim are the frames on your sliding doors?
Slimline systems such as the Schüco ASS range and Cortizo Cor Vision have very narrow sightlines (down to around 20–35mm on the slimmest systems), maximising glass and giving a minimal, modern look.
Should I choose sliding doors or bifold doors?
Choose sliding doors for the largest, clearest panes of glass and a minimal frame; choose bifolds to fold the whole opening away. For similar sizes the cost is comparable.
What is the difference between a sliding and a lift-and-slide door?
A standard sliding door runs on rollers with its seals in contact. A lift-and-slide door, such as the Schüco ASS 70.HI, lifts the leaf off its seals when the handle is turned so it glides easily, then lowers it back to seal tight. That allows heavier, better-insulated leaves, up to 3m by 3m on the ASS 70.HI.
Can I buy aluminium sliding doors trade or supply-only?
Yes. Installers, builders and homeowners with their own fitter can order Schüco and Cortizo sliding doors supply-only, made to their sizes, with collection or delivery available. Supply-only orders carry a one-year warranty.
Do sliding patio doors need to meet Building Regulations?
Yes. In England, a new or replacement external door in an existing home needs a U-value of 1.4 W/m²K or better under Approved Document L, the glass in a door must be safety glass, and on a new home the doors also need to meet the Part Q security requirement, usually shown by testing to PAS 24.
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