When choosing uPVC windows for a new build or renovation, you will often come across two established European brands: Aluplast and Cortizo. Both produce quality uPVC window systems with their own technical characteristics and options for different homes.

This article compares the brands’ main features to help you choose according to the specific requirements of your property or project.

Introducing Aluplast and Cortizo

Aluplast is a German manufacturer with more than 35 years of experience specialising in uPVC window and door systems. Its profiles focus on energy efficiency, thermal insulation and acoustic performance, with ranges such as Ideal 4000, 7000 and 8000.

For newer developments, see Aluplast’s NEO platform, combining different opening types, profiles and design possibilities.

Cortizo is a Spanish manufacturer with a strong European presence, known for innovation and a broad range of window and façade systems. Alongside aluminium, it develops uPVC systems such as A70 uPVC and other ranges for residential construction and renovation.

Thermal and acoustic insulation: where does comfort come from?

A window’s thermal performance depends on the profile and glazing specification. Both manufacturers offer systems designed for double and triple glazing.

• Aluplast: selected configurations can achieve whole-window thermal transmittance (Uw) below 0.80 W/m²K, depending on the series, dimensions and glazing. For example, Ideal 8000 can provide strong thermal performance with suitable triple glazing and reinforcement.

• Cortizo uPVC: efficient configurations, including options in the A70 uPVC family, can offer Uw values in the region of 0.8–1.2 W/m²K, depending on the complete specification. Request the declared value for the exact window being quoted.

Note: suitable systems from either brand can contribute to low-energy and nearly zero-energy building projects. Compliance is assessed for the building and specified components, rather than being guaranteed by the brand alone.

Acoustic insulation

Sound insulation depends on glazing composition, profile, seals and installation.

• Aluplast: selected multi-chamber, three-seal systems can offer sound insulation of up to 47 dB, depending on the tested glazing and window assembly.

• Cortizo uPVC: suitable systems and acoustic glazing can provide performance in the region of 44–46 dB, subject to the tested configuration.

Both brands offer options for noisy urban locations. Compare like-for-like test values for your proposed windows.

Appearance and personalisation

Both brands offer design flexibility:

• Aluplast provides a broad choice of decorative foil finishes, including woodgrain, anthracite, matt white and metallic textures. Profile and colour options vary by range, with single- and dual-sided finishes available.

• Cortizo uPVC also offers varied solid-colour and wood-effect finishes, with options depending on the series and configuration.

The best appearance depends on personal taste, the building’s style and local requirements, including any restrictions in historic areas. Confirm exact colour availability before ordering.

Aluplast vs Cortizo: durability and maintenance

Both manufacturers use engineered uPVC profiles, with reinforcement according to the system specification.

• uPVC is resistant to moisture and corrosion and does not require regular painting.

• Correct installation and maintenance support a long service life. Warranty duration and coverage depend on the supplier, components and installation contract; confirm the written terms for your project.

Routine maintenance is straightforward: clean with mild detergent, inspect the seals and maintain the hardware as instructed.

Sustainability

Both companies incorporate sustainability measures into their processes:

• Aluplast uses recycled uPVC in profile cores, including ecoPowerCore technology, while retaining the external finish and performance requirements.

• Cortizo also works with recycled material and environmental management processes. The relevant recycled-content and environmental certification details should be checked for the specific product and manufacturing operation.

Efficient, durable systems from either manufacturer can support more sustainable construction and lower operational energy demand.

Aluplast vs Cortizo: cost and availability

Prices depend on the series, opening type, hardware, glazing and finish.

• Entry-level systems from both brands are competitively positioned in the Portuguese market.

• More demanding specifications, such as enhanced thermal or acoustic performance, generally cost more.

Compare value against your project’s needs, including comfort, appearance, performance and insulation, using equivalent specifications.

When might each brand suit a project?

Both are suitable for new homes and renovation. The following is a general guide; availability depends on the model and specification:

Requirement	Aluplast	Cortizo
Demanding thermal performance	✅	✅
Wide choice of uPVC finishes	✅	✅
Standard tilt-and-turn or fixed windows	✅	✅
Integration with broader façade or mixed-system projects	*	✅
Traditional residential design	✅	*

* Depends on the specific model or configuration.

Which uPVC windows should you choose: Aluplast or Cortizo?

Both Aluplast and Cortizo offer quality uPVC windows, with strong technical performance, insulation and attractive finishes.

Your choice should reflect:

• the property’s location and climate;
• thermal and acoustic requirements;
• design preferences;
• the available budget.

Caixilho PVC has experience installing both brands and helps customers identify a suitable system for each project.

Aluplast vs Cortizo: frequently asked questions

What is the difference between Aluplast and Cortizo uPVC windows?

Both offer efficient systems with good thermal and acoustic insulation. The differences lie in the models, finishes and configurations available.

Are Aluplast windows more efficient than Cortizo windows?

It depends on the selected series and specification. Both manufacturers offer high-performing systems, including options designed for triple glazing.

Which brand offers more personalisation?

Both offer a range of colours and woodgrain finishes. The available choices depend on the selected model.

Which is more durable?

Both can provide long-lasting performance when properly installed and maintained, using quality uPVC profiles and compatible components.

Can I request a free quote for either brand?

Yes. Caixilho PVC works with both brands and provides free, tailored quotes for uPVC window projects.