Choosing windows and doors: between technical performance and aesthetic appeal

When designing or renovating a home, windows and doors are never a secondary choice.

They are elements that define the character of the building, influence living comfort, and contribute to energy efficiency.

Moreover, the costs related to delivery and installation significantly impact the overall renovation budget.

In this article, we explore how aesthetics and technical performance intertwine in the selection of windows and doors—through materials, shapes, and functionality.

Windows and doors are an integral part of architectural language. They don’t just functionally separate the interior from the exterior: a well-proportioned window can enhance a façade, create a dialogue with the surrounding garden, and frame natural light. The choice of openings—in height, width, and rhythm—contributes to the visual identity of the building and the well-being of its inhabitants.

The choice of material affects both technical performance and aesthetics. Here’s an overview:

• Wood: warm, natural, and vibrant. It requires maintenance but offers timeless elegance.

• Aluminum: minimalistic, durable, ideal for large glass surfaces. Excellent for modern buildings.

• PVC: versatile, affordable, with good insulating properties. Perfect for those seeking functionality at a lower cost.

The decision depends on context, available budget, personal maintenance preferences, and the project's design sensitivity.

Today, windows and doors are increasingly customizable. You can play with:

• Colors and finishes: choose from classic RAL colors, metallic finishes, anodized surfaces, or wood-effect textures.

• Shapes: rectangular, arched, ribbon-style… each geometry tells a story.

• Accessories: handles, shading systems, special glass, ventilation grilles. Details that make a difference.

Don’t forget the regulatory aspect: the EPB (Energy Performance of Buildings) consultant outlines in their documentation the minimum performance requirements that windows and doors must meet to comply with current energy regulations. The Ug value (glass transmittance) and Uw value (overall transmittance of frame and glass), expressed in W/m²K, must be clearly stated in manufacturers’ offers and fall within the prescribed limits.

Choosing windows and doors is a delicate step that deserves attention and expertise.

Contact us for a personalized consultation: we listen to your needs and guide you toward the most suitable choice for your project.