Aluminium or PVC Windows: Which to Choose for Your Project?

When it comes to choosing the windows or doors for a new build or a renovation, the question of aluminium versus PVC window systems is almost inevitable. There is no universal answer: the decision depends on the thermal and acoustic performance you want, the available budget and the architectural language of the space. In this article, QUAL explains the characteristics of each system to help you make a more informed decision.

What are the advantages of aluminium windows?

Aluminium window systems stand out for their structural strength and the ability to create slimmer profiles, which translates into larger openings and a more generous amount of natural light.

• High resistance, even in the most demanding weather conditions
• Slim profiles that maximise natural light
• Great versatility of finishes and colours
• Low maintenance throughout its service life

What are the advantages of PVC windows?

PVC window systems are recognised above all for their thermal and acoustic performance, with a direct impact on energy efficiency and the indoor comfort of the space.

• High thermal and acoustic insulation
• Good air and water tightness
• Low maintenance over time
• A balanced relationship between cost and performance

Aluminium Windows vs. PVC Windows

The most suitable option always depends on the priorities of each project, the climate and orientation of the space and the intended architectural language.

Thermal performance

• Aluminium: good, especially with complementary solutions
• PVC: very high

Acoustic performance

• Aluminium: good
• PVC: very high

Design and profiles

• Aluminium: slimmer profiles, suited to large glazed openings
• PVC: slightly more robust profiles

Maintenance

• Aluminium: low
• PVC: low

Best suited for

• Aluminium: projects with glazed façades and a more minimalist architecture
• PVC: projects where thermal and acoustic comfort are a priority

QUAL's technical team supports this decision together with the client, based on the project's characteristics and its architectural and performance requirements, without predefined solutions for every case.

About QUAL

QUAL is a company based in Águeda that has been developing window and door solutions since 1987, initially dedicated to aluminium and iron frames. In 2003, the company also integrated PVC window production, expanding the range of solutions it offers today to private and business clients.

Over almost four decades of activity, QUAL has strengthened its production structure and is certified to the ISO 9001 standard, recognised by APCER and IQNET. The experience accumulated in producing aluminium and PVC window systems allows the company to support each project with the same technical rigour, from defining the solution to on-site installation, whatever the chosen material.

Request Your Quote from QUAL

Whether in aluminium or PVC, QUAL supports your project at every stage, from defining the solution to installation. Visit the company's showroom in Águeda to see the solutions in person, or request your quote through the form available on our website.