Cortizo vs Schuco: Which Aluminium System is Better?

When specifying aluminium windows and doors for a UK home, two brands dominate the premium conversation: Cortizo and Schuco. Both are European systems companies with decades of engineering heritage, both achieve excellent thermal performance, and both are specified by architects for high-end residential projects. So which is actually better for your home? This head-to-head comparison breaks down every factor that matters.

Quick Decision Frame

Choose Cortizo if you prioritise slim sliding-door sightlines (Cor Vision Plus Sliding's 20mm central junction is the slimmest aluminium slider on the UK market), want the same engineering quality at a 20-30% lower installed price, or are specifying a standard residential project (casement windows, bifolds, sliders) where value matters.

Choose Schuco if you need motorised sliding via the ASS 70.HI Slimline e-slide system, require a Passivhaus-certified sliding door (the ASE 80), need heritage steel via Schuco Jansen, or your architect has specified Schuco. Schuco also has slimmer bifold meeting-stile sightlines (90mm vs Cortizo's 110mm).

Either works for thermal performance to UK Building Regulations Part L, PAS 24 security, 10-year hardware guarantees, or CPA insurance-backed installation cover. The systems are engineering peers across standard residential apertures; the choice comes down to budget, brand preference and edge-case features.

Company Background

Cortizo

Cortizo is a Spanish aluminium systems company headquartered in Padrón, Galicia. They are one of Europe's largest aluminium extruders, operating their own foundries, extrusion plants, powder-coating facilities, and anodising lines. This vertical integration, controlling every stage from raw aluminium to finished profile, is unusual in the industry and gives Cortizo significant quality control and cost advantages.

Cortizo entered the UK market in the early 2010s and has grown rapidly, particularly in the residential sector. They are now one of the most specified aluminium systems in the UK for sliding doors, bifold doors, and casement windows.

Schuco

Schuco is a German aluminium systems company headquartered in Bielefeld. They are arguably the most recognised premium aluminium brand globally, with a particularly strong presence in commercial and high-end residential markets. Schuco does not manufacture aluminium itself; they design profile systems and license them to fabricators worldwide. Their reputation is built on engineering precision, extensive testing, and a wide product range that extends to automated facades and climate control systems.

In the UK, Schuco is widely regarded as the default "premium" specification for aluminium windows and doors. They are particularly strong in the architect-specified market and large-scale developments.

Thermal Performance: Head to Head

Thermal performance is measured by U-value, the rate of heat loss through the product. Lower values mean better insulation.

Windows

| Metric | Cortizo Cor 70 Hidden Sash | Schuco AWS 70.HI | |---|---|---| | Frame depth | 70mm | 70mm | | Whole window U-value (double glazing) | from 1.3 W/m²K | from 1.3 W/m²K | | Whole window U-value (triple glazing) | down to 0.9 W/m²K | down to 1.0 W/m²K | | Thermal break material | Polyamide | Polyamide | | Burglar resistance | PAS 24 | PAS 24 |

Sliding Doors

| Metric | Cortizo Cor Vision Plus Sliding | Schuco ASS 77 PD Panorama | Schuco ASE 80 (Passivhaus) | |---|---|---|---| | Central junction (sightline) | 20mm | 30mm | 35mm | | Maximum sash size | up to 3.3m × 3m | up to 3.2m × 3m | up to 3.5m × 3.2m | | Maximum panel weight | up to 500kg | up to 500kg | up to 400kg | | Mechanism | Lift-and-slide | Lift-and-slide | Lift-and-slide | | Burglar resistance | PAS 24 | PAS 24 / RC2 | PAS 24 / RC2 | | Passive House certified | No | No | Yes |

Bifold Doors

| Metric | Cortizo Bi-fold Plus Door | Schuco AS FD 75 | Schuco AS FD 90.HI | |---|---|---|---| | Frame depth | 80mm | 75mm | 90mm | | Whole door U-value | from 1.4 W/m²K | from 1.1 W/m²K | from 0.8 W/m²K | | Maximum panel size | approx. 1.2m × 3m | up to 3.0m × 1.5m | up to 3.5m × 1.5m | | Sightline at meeting point | 110mm | 90mm | 90mm | | Burglar resistance | PAS 24 | PAS 24 / RC up to 3 | PAS 24 |

Result: Windows are a tie at the Uw 1.3 W/m²K headline figure. Sliding doors are comparable in U-value and panel capacity. On bifolds, Schuco AS FD 75 / AS FD 90.HI reach a better whole-door U-value (down to 0.8 W/m²K on the AS FD 90.HI) and slimmer 90mm meeting-stile sightlines than Cortizo's 110mm. For Passivhaus-certified sliding apertures, only Schuco's ASE 80 carries the certification in this comparison.

Sightlines Comparison

Sightlines, the visible width of aluminium frame, affect both aesthetics and the amount of natural light entering the room.

| Product | Cortizo | Schuco | |---|---|---| | Casement window (frame face) | slim (Cor 70 Hidden Sash) | wider (AWS 70.HI) | | Sliding door (meeting point) | 34mm (Cor Vision Sliding) / 20mm (Cor Vision Plus Sliding) | 30mm (ASS 77 PD Panorama) | | Bifold door (meeting point) | 110mm (Bi-fold Plus Door) | 90mm (AS FD 75 / AS FD 90.HI) |

Result: Cortizo is slimmer on casements and sliders (Cor Vision Plus Sliding hits a 20mm central junction, the slimmest in this comparison). Schuco is slimmer on bifolds (90mm meeting point vs Cortizo's 110mm). Both systems are visually slim by aluminium standards; the call depends on which aperture type dominates the project.

Cost Comparison

This is where the two systems diverge most significantly. Cortizo is consistently cheaper than Schuco for equivalent products. Figures below reflect typical 2026 UK installed pricing observed on residential quotes; final pricing varies by fabricator, glass specification and project complexity.

| Product (Typical 3m wide installation) | Cortizo Installed | Schuco Installed | Saving | |---|---|---|---| | Casement window (1200x1200mm) | £700 to £950 | £900 to £1,200 | 20 to 25% | | Sliding door (2-panel, 3m) | £5,000 to £7,000 | £6,500 to £8,500 | 20 to 25% | | Bifold door (4-panel, 3.6m) | £5,500 to £7,500 | £7,000 to £9,500 | 20 to 25% | | Full house (10 windows + 1 sliding door) | £16,000 to £22,000 | £20,000 to £28,000 | 20 to 30% |

The consistent 20-30% price difference is driven by several factors:

1. Vertical integration: Cortizo manufactures their own aluminium, reducing raw material costs 2. Distribution model: Cortizo's UK distribution is more competitive 3. Brand premium: Schuco commands a higher price partly because of brand recognition 4. Fabrication complexity: some Schuco systems require more specialist fabrication tooling

For a full house project, the saving from choosing Cortizo over Schuco can be £4,000 to £8,000. That is enough to fund an additional sliding door or a kitchen renovation.

Product Range

Cortizo Range - Cor 70 Hidden Sash casement windows - Cor Vision Sliding and Cor Vision Plus Sliding sliding doors - 4700 Sliding Patio and 4900 Sliding HI lift-and-slide systems - Bi-Fold and Bi-fold Plus Door bifold ranges - Millennium Plus 70 / 80 Door entrance doors - Curtain walling and commercial systems - Roof and canopy systems

Schuco Range - AWS 70.HI casement and tilt-and-turn windows - AWS 70 SC Slimline casement windows for slim sightlines - ASS 77 PD Panorama lift-and-slide doors - ASS 70.HI and ASS 70.HI Slimline sliding doors (Slimline available with e-slide motorisation) - ASE 60 and ASE 80 sliding doors (ASE 80 Passivhaus-grade) - AS FD 75 and AS FD 90.HI bifold doors - ASS 70.HI bifold and Cornerless bifold variants - Schuco Front Doors entrance range - Schuco Jansen heritage steel windows and doors - Schuco CMC 50 HI Winter Gardens - FWS curtain walling and roof systems

Result: Schuco's range is broader at the edges (heritage steel via Jansen, winter-garden CMC 50 HI glass rooms, e-slide motorised sliding, Passivhaus ASE 80). Cortizo's range covers the standard residential set (casement, slider, bifold, entrance) without extending into those specialist categories. For a standard window-and-door package, the ranges are interchangeable; for edge cases, Schuco is the clearer choice.

Warranty and Support

Cortizo - 10-year hardware guarantee plus a separate 25-year powder-coat guarantee on the finish - Fabricator provides installation guarantee (typically 10 years, CPA insurance-backed) - UK technical support and training network

Schuco - 10-year hardware guarantee plus equivalent powder-coat guarantee on the finish - Fabricator provides installation guarantee (typically 10 years, CPA insurance-backed) - More extensive UK support network (larger number of approved fabricators)

Result: Equal on the headline guarantee. Schuco has a larger UK approved-fabricator network, which can matter for sourcing replacement parts a decade down the line. Cortizo's UK network is England-and-Wales-wide and growing.

Motorisation and Smart Operation

This is an area where Schuco still leads. Their ASS 70.HI Slimline sliding door is available with the e-slide motorisation kit, which opens and closes large sash panels at the touch of a button or via smart-home integration. This is particularly useful for very heavy panels where manual operation is awkward.

Cortizo offers automatic-opening options on selected sliding doors but does not currently market a comparable wireless e-slide system in the UK. If motorised sliding is a priority, Schuco is the better choice.

Result: Schuco for motorised sliding. Cortizo if motorisation is not a project requirement (which it isn't on most residential projects).

Which Should You Choose?

Choose Cortizo If: - Budget matters and you want maximum value without compromising on quality - You are installing sliding doors (Cor Vision Plus Sliding's 20mm central junction beats Schuco ASS 77 PD Panorama's 30mm on sightlines) - You want excellent thermal performance without paying a premium-brand surcharge - Your project is standard residential: casement windows, bifolds, or sliding doors - You are price-comparing and want more for your money

Choose Schuco If: - Budget is less of a concern and you want the recognised premium brand - You need motorised sliding doors via the ASS 70.HI Slimline e-slide system - Your architect has specified Schuco (common on high-end projects) - You need a Passivhaus-certified sliding door (the ASE 80) or heritage steel via Jansen - Brand recognition and resale perception matter to you

Installation in the UK

Vitrum Solutions installs both Cortizo and Schuco systems across South East England. Every installation carries a 10-year CPA insurance-backed guarantee and FENSA certification, regardless of system. Book a free home survey if a specifier walk-through against both brands would help.

Frequently Asked Questions

Is Cortizo cheaper than Schuco?

Yes, consistently. Cortizo is typically 20-30% cheaper than Schuco for equivalent products: casement windows, sliding doors, and bifold doors. The saving is driven by Cortizo's vertical integration (they manufacture their own aluminium) and a less aggressive brand premium. The quality and performance difference does not justify the price gap for most residential applications.

Are Cortizo windows as thermally efficient as Schuco?

For everyday residential specifications they are very close. Cortizo Cor 70 Hidden Sash and Schuco AWS 70.HI both deliver Uw around 1.3 W/m²K with double glazing. Where Passivhaus performance is required, Schuco's Passivhaus-certified product is now the ASE 80 sliding door, which is the brand's flagship Passivhaus aperture; Cortizo achieves comparable Uw values only at the top of its specification.

Which has better sightlines, Cortizo or Schuco?

Cortizo Cor Vision Sliding standard sliders run a 34mm interlock; Cor Vision Plus Sliding cuts that to a 20mm central junction. Schuco ASS 77 PD Panorama's central junction starts at 30mm. Cortizo Plus is meaningfully slimmer on sliding doors. On bifolds the picture reverses: Schuco AS FD 75 / AS FD 90.HI use a 90mm meeting-point sightline versus Cortizo Bi-fold Plus Door's 110mm.

Can I mix Cortizo and Schuco products in one project?

Yes, this is entirely feasible and sometimes the best approach. For example, you might use Cortizo Cor Vision Plus Sliding doors with Schuco AWS 70.HI casement windows, or Schuco AS FD 75 bifolds with Cortizo Cor 70 Hidden Sash windows. At Vitrum Solutions, we regularly mix systems within a project and can colour-match both brands to the same RAL specification.

Which brand do architects prefer?

Schuco has traditionally been the default architect specification for premium aluminium, largely due to brand recognition and a longer UK presence. However, an increasing number of architects now specify Cortizo, particularly for residential projects where the cost saving allows the budget to stretch further. Both brands are accepted by all UK planning authorities.