Cortizo Aluminium Windows Review: COR-60 Performance, Pricing & UK Installation

If you are researching aluminium windows for your home, Cortizo is a name that keeps appearing alongside Schuco and Reynaers. As one of Europe's largest aluminium extrusion companies, Cortizo manufactures over 130,000 tonnes of aluminium profiles annually from their base in Galicia, Spain. But how do Cortizo aluminium windows actually perform in UK conditions, and are they worth the investment? This review covers everything you need to know about the COR-60 casement system, the COR-70 tilt-and-turn option, thermal performance, security, colour choices, and real-world pricing.

Who is Cortizo?

Cortizo (full name Corporación Industrial Cortizo S.A.U.) was founded in 1972 and has grown into one of Europe's top three aluminium profile manufacturers. They supply window, door, and curtain wall systems to commercial and residential markets across more than 80 countries. In the UK, Cortizo systems are fabricated by approved partners and installed by specialist aluminium window companies.

Unlike some competitors who focus primarily on the premium commercial market, Cortizo has deliberately positioned their residential range to offer premium performance at a more accessible price point. This makes them particularly interesting for homeowners who want aluminium aesthetics without the top-tier pricing of brands like Schuco.

The Cortizo COR-60 Casement System

The COR-60 is Cortizo's flagship casement window system for the UK residential market. The designation refers to the 60mm frame depth — notably slimmer than many competing aluminium systems, which translates to larger glass areas and more natural light.

Key Specifications

• Frame depth: 60mm
• Thermal break: Polyamide thermal break technology with 24mm thermal strut
• U-value: From 1.2 W/m²K with standard double glazing, down to 0.9 W/m²K with triple glazing
• Glazing capacity: Accepts sealed units from 24mm to 50mm thick
• Security: PAS 24:2022 certified as standard
• Weatherproofing: Tested to BS 6375 for exposure zones across the UK
• Sightlines: 55mm visible frame width — among the slimmest available in the casement category
• Maximum sash weight: 130kg per sash, allowing very large opening panels

Thermal Break Technology

The standout engineering feature of the COR-60 system is its polyamide thermal break. Aluminium is an excellent conductor of heat, which is obviously problematic for windows. Cortizo addresses this by incorporating a reinforced polyamide barrier between the inner and outer aluminium sections of the frame. This barrier physically separates the cold exterior aluminium from the warm interior aluminium, preventing thermal bridging.

The 24mm thermal strut in the COR-60 is wider than many competing systems at this price point, which directly contributes to the strong U-value performance. Combined with argon-filled double-glazed units and warm-edge spacer bars, the COR-60 achieves U-values from 1.2 W/m²K — comfortably below the Building Regulations maximum of 1.4 W/m²K for replacement windows in England.

For homeowners in exposed locations or those seeking the best possible thermal performance, the COR-60 with triple glazing achieves U-values down to 0.9 W/m²K, which approaches Passivhaus territory.

The Cortizo COR-70 Tilt-and-Turn System

For those who prefer tilt-and-turn operation — particularly useful for upper floors where cleaning from outside is impractical — Cortizo offers the COR-70 system. This uses a 70mm frame depth to accommodate the more complex tilt-and-turn hardware.

The COR-70 offers:

• Two opening modes: Tilt inward from the top for ventilation, or turn fully inward for cleaning and maximum airflow
• Enhanced thermal performance: U-values from 1.1 W/m²K with double glazing due to the deeper frame and additional thermal chambers
• PAS 24 security with multi-point locking in both tilt and turn positions
• Same colour range as the COR-60 system

Tilt-and-turn windows are more common in mainland Europe than the UK, but they are growing in popularity here, particularly in contemporary new builds and upper-floor bedrooms where safety and cleaning access are priorities.

PAS 24 Security

All Cortizo COR-60 and COR-70 windows are PAS 24:2022 certified as standard. This is the current UK benchmark for enhanced security, tested against physical attack including lock manipulation, frame levering, and panel impact.

In practical terms, PAS 24 certification on Cortizo windows includes:

• Multi-point espagnolette locking with mushroom cam locks
• Reinforced corner joints using crimped and mechanically fixed connections
• Internal beading — the glazing is secured from inside the property, meaning an intruder cannot remove the glass from outside
• Hinge-side security bolts that engage even when the window is unlocked
• Compatible with Secured by Design requirements for police-approved home security

The inherent strength of aluminium frames gives Cortizo an advantage over uPVC alternatives when it comes to forced-entry resistance. The material does not flex or deform under lever pressure the way plastic profiles can, providing a genuinely more secure frame structure.

Colour Options: 200+ RAL Choices

One of the strongest selling points of Cortizo aluminium windows is the colour flexibility. Unlike uPVC windows, which rely on foil wraps limited to around 20-30 standard colours, Cortizo windows are powder-coated with polyester paint that can be colour-matched to any RAL shade.

Standard colours include:

• Anthracite Grey (RAL 7016) — the most popular choice, accounting for roughly 40% of UK aluminium window orders
• Matt Black (RAL 9005) — increasingly popular for contemporary and industrial-style homes
• Agate Grey (RAL 7038) — a softer, lighter grey popular for coastal and traditional properties
• White (RAL 9010/9016) — classic white in various shades
• Cream (RAL 9001) — ideal for period properties and conservation areas

Premium finishes:

• Dual colour — different colours inside and outside (for example, Anthracite Grey exterior with white interior)
• Textured finishes — fine texture, coarse texture, or sand texture effects
• Metallic finishes — including brushed aluminium effects
• Heritage colours — including Chartwell Green, Heritage Green, and Slate Blue for period properties

All Cortizo powder-coated finishes carry a 25-year guarantee against fading, chalking, or peeling. This is notably longer than the 10-year guarantee typical on uPVC foil wraps, and reflects the superior durability of powder-coated aluminium in UV exposure.

Cortizo COR-Vision Sliding Doors

While this review focuses on Cortizo casement and tilt-and-turn windows, it is worth mentioning the COR-Vision sliding door system, which shares the same design language and colour options. The COR-Vision offers ultra-slim 35mm interlock sightlines for panoramic views and is available in configurations up to 6.5 metres wide. If you are considering aluminium sliding doors alongside new windows, the COR-Vision system provides a seamless aesthetic match. We have covered this system in detail in our Cortizo sliding doors review.

Cortizo vs Schuco AWS 75: How Do They Compare?

The most common comparison UK homeowners make is between Cortizo and Schuco. Here is an honest breakdown:

| Feature | Cortizo COR-60 | Schuco AWS 75 | |---|---|---| | Frame depth | 60mm | 75mm | | Best U-value (double glazed) | 1.2 W/m²K | 1.0 W/m²K | | PAS 24 security | Yes (standard) | Yes (standard) | | Colour options | 200+ RAL | 200+ RAL | | Powder coat guarantee | 25 years | 25 years | | Sightline width | 55mm | 63mm | | Typical installed price | £600–£900 per window | £800–£1,200 per window | | UK market position | Premium mid-range | Premium |

Where Cortizo wins: Slimmer frame depth means more glass and more light. The COR-60 at 60mm is 15mm narrower than the Schuco AWS 75, and the sightlines are 8mm slimmer. Cortizo also wins significantly on price — typically 20-30% less than Schuco for comparable specifications.

Where Schuco wins: The deeper frame accommodates thicker thermal breaks, giving Schuco a slight thermal performance advantage. Schuco also has stronger UK brand recognition and a larger network of approved fabricators.

Our recommendation: At Vitrum Solutions, we install both Cortizo and Schuco aluminium windows. For most residential projects, we recommend Cortizo COR-60 because it delivers 90% of the performance of Schuco at a meaningfully lower price. We reserve Schuco for projects where the very best thermal performance is required or where the client specifically requests the brand.

UK Pricing Guide for Cortizo Aluminium Windows

Cortizo aluminium windows sit in the premium mid-range of the UK market. Here is what you can realistically expect to pay in 2026 for Cortizo COR-60 windows, fully supplied and installed with FENSA certification:

| Window Type | Cortizo COR-60 Price | Budget Aluminium | uPVC Equivalent | |---|---|---|---| | Standard casement (600x900mm) | £600–£900 | £450–£600 | £350–£500 | | Large casement (1200x1200mm) | £900–£1,300 | £700–£900 | £500–£750 | | Bay window (3-section) | £2,500–£3,500 | £1,800–£2,500 | £1,500–£2,200 | | Full house (3-bed semi, 8 windows) | £7,000–£11,000 | £5,000–£7,500 | £4,000–£6,500 |

Factors that push the price higher include dual-colour finishes (add 15-20%), triple glazing (add 20-25%), non-standard RAL colours (add 10-15%), and difficult access requiring scaffolding.

Installation: FENSA Registration and Insurance-Backed Guarantees

Any reputable Cortizo installer should be registered with FENSA or Certass. This is not optional — it is a legal requirement for window replacement in England and Wales. FENSA registration means your installation is automatically certified as compliant with Building Regulations Part L (energy efficiency), and you will receive a compliance certificate that is required when you sell your property.

Beyond FENSA, look for an installer who provides a CPA insurance-backed guarantee. This protects your investment for 10 years even if the installation company ceases trading. At Vitrum Solutions, every Cortizo installation comes with both FENSA certification and a CPA insurance-backed guarantee as standard.

Where We Install Cortizo Aluminium Windows

Vitrum Solutions installs Cortizo aluminium windows across Buckinghamshire, Berkshire, Oxfordshire, Surrey, Hampshire, Hertfordshire, and West London. Our installation teams are trained specifically on Cortizo systems, and we hold stock of the most popular COR-60 configurations to reduce lead times.

Whether you are in a modern new build in Surrey, a period property in the Chilterns, or a contemporary renovation in West London, Cortizo COR-60 aluminium windows deliver the slim sightlines, thermal performance, and colour flexibility that aluminium is known for — without the price premium of top-tier German systems.

The Verdict

Cortizo COR-60 aluminium windows represent the sweet spot in the UK market. They offer genuine premium performance — PAS 24 security, U-values from 1.2 W/m²K, 200+ RAL colours, and a 25-year powder coat guarantee — at a price point that is meaningfully more accessible than Schuco or Reynaers. The 60mm frame depth delivers slimmer sightlines than most competitors, letting more light into your home.

The main compromise is a slight thermal performance gap compared to deeper-framed systems like Schuco AWS 75. For most UK homes, this difference is negligible in real-world energy costs. If you want aluminium windows that look outstanding, perform excellently, and do not require a top-tier budget, Cortizo COR-60 is the system we recommend most often.

Explore our full Cortizo range or compare with our aluminium casement windows page for specifications and gallery images.

Frequently Asked Questions

Are Cortizo aluminium windows good quality?

Yes, Cortizo aluminium windows are excellent quality. Cortizo is one of Europe's three largest aluminium extrusion companies, manufacturing over 130,000 tonnes of profiles annually. The Cortizo COR-60 system is PAS 24:2022 certified for security, achieves U-values from 1.2 W/m²K for thermal performance, and carries a 25-year powder coat guarantee. At Vitrum Solutions, we install Cortizo COR-60 across Buckinghamshire, Berkshire, and Surrey and consistently receive positive feedback on their build quality and finish.

How do Cortizo windows compare to Schuco?

Cortizo COR-60 windows offer 90% of the performance of Schuco AWS 75 at 20-30% lower cost. The Cortizo COR-60 has a slimmer 60mm frame depth (versus 75mm for Schuco AWS 75), resulting in more glass area and slimmer sightlines. Schuco holds a slight edge on thermal performance with a best U-value of 1.0 W/m²K versus 1.2 W/m²K for Cortizo with double glazing. Both Cortizo and Schuco offer PAS 24 security, 200+ RAL colours, and 25-year powder coat guarantees. Vitrum Solutions installs both systems.

How much do Cortizo aluminium windows cost in the UK?

Cortizo COR-60 aluminium windows typically cost £600-£900 per standard casement window, fully supplied and installed with FENSA certification and a CPA insurance-backed guarantee. A full house installation (8 windows for a 3-bed semi) typically costs £7,000-£11,000. Factors that increase the price include dual-colour finishes, triple glazing, non-standard RAL colours, and scaffolding requirements. Cortizo is typically 20-30% less expensive than Schuco for comparable specifications.

Do Cortizo windows come with a security rating?

Yes, all Cortizo COR-60 and COR-70 aluminium windows are PAS 24:2022 certified as standard. PAS 24 is the UK benchmark for enhanced security, testing windows against forced entry including lock manipulation, frame levering, and panel impact. Cortizo windows include multi-point locking, internal beading, hinge-side security bolts, and reinforced corner joints. This meets Secured by Design requirements. At Vitrum Solutions, every Cortizo installation includes PAS 24 security with FENSA certification and a CPA insurance-backed guarantee.

What colours are available for Cortizo aluminium windows?

Cortizo aluminium windows are available in over 200 RAL colours, all applied as polyester powder coat with a 25-year guarantee against fading, chalking, or peeling. Popular Cortizo colour choices include Anthracite Grey (RAL 7016), Matt Black (RAL 9005), Agate Grey (RAL 7038), and White (RAL 9010). Dual-colour options are available, with different colours on the interior and exterior faces. Cortizo also offers textured, metallic, and heritage finishes. This colour range is significantly broader than uPVC foil options and matches the flexibility offered by Schuco.