FoldingBifold Doors
Slim-profile folding doors for made-to-measure openings and architect-led projects. Bifold Plus is PAS24-approved with a 45 mm thermal break.
PAS24 approved45 mm thermal breakGlazing 25–48 mm
Cor Vision sliding systems with sightlines down to 20 mm, PAS24 bifolds and concealed-frame windows — fabricated in-house and installed across London and the South East.
Grouped by what you are fitting. Every system is made to measure — these are the limits you are working within, not fixed products.
FoldingSlim-profile folding doors for made-to-measure openings and architect-led projects. Bifold Plus is PAS24-approved with a 45 mm thermal break.
SlidingWhat Cortizo is known for. Cor Vision reduces the visible aluminium to 20 mm; Cor Vision Plus holds 25 mm while taking sashes up to 4000 mm.
WindowsSliding windows rated near the top of every European weather scale, plus the Arch Invisible tilt-and-turn with a concealed frame.
Minimal framing only works if the fabrication is accurate. At 20 mm sightlines there is no tolerance to hide a mistake in.
Published Cortizo figures for every system we fabricate and fit. All are made to measure — final sizes depend on glazing, configuration and the structural opening.
| System | Type | Sightline / profile | Max size / weight | Performance |
|---|---|---|---|---|
| Cortizo Cor Vision | Sliding | 20 mm sightline | Up to 94% glass | Minimal-frame flagship |
| Cortizo Cor Vision Plus | Sliding | 25 mm visible section | Sash to 4000 mm | Motorised 700 kg, glazing 54 mm |
| Cortizo Bifold Doors | Folding | 48 / 41 mm profile | 104 / 90 mm face | Two profile options |
| Cortizo Bifold Plus | Folding | Sash 80 mm | 1200 × 3000 mm | PAS24, 45 mm thermal break |
| Cortizo Sliding Windows | Window | Slim straight profile | — | Air 4, Water 7A, Wind C5 |
| Cortizo Arch Invisible | Window | Frame / sash 70 mm | — | Glazing to 40 mm, tilt and turn |
We have been fabricating and fitting aluminium glazing since the early 2000s, including a Grand Designs feature. Reviews are independent.
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Full-size operating systems in the West Drayton showroom — open daily, 9am to 5pm, UB7 7HQ. No appointment needed.
Installed work across London and the South East, including the Grand Designs feature.
Send us your opening sizes and we will come back with a specification and a price. No obligation, and no pressure.