Price of installing a glass roof in Belgium

The chosen material for the design of a glass roof directly influences its style, durability, and maintenance frequency. In Belgium, the most common models are made of aluminum, steel, wood, or PVC. Aluminum is particularly valued for its lightness, corrosion resistance, and ease of maintenance, making it an ideal choice for modern and lasting interiors.

Wood, on the other hand, brings a warm and natural atmosphere, but requires regular maintenance to withstand humidity and insects. PVC, being more affordable, is a cost-effective alternative, although it is less sturdy. Finally, steel and wrought iron are appealing for their elegant industrial style and exceptional robustness. On average, one should expect to pay between €800 and €1,200 per m² for an aluminum glass roof, €1,000 to €1,800 per m² for a steel model, and €600 to €1,000 per m² for a wooden version.

The size and shape directly influence the project's price. The larger the glass roof, the more materials, glazing, and installation time it requires.
A standard glass roof of 2 m² generally costs between €1,200 and €2,500, while a large custom glass roof can exceed €3,000, especially if it is curved, sloped, or domed.

The complexity of the structure also affects labor costs, especially when the project involves custom cuts or specific architectural constraints.

The glazing plays a crucial role in energy performance, security, and light transmission. In Belgium, the three main types are:

• Single glazing, inexpensive but poorly insulating;
• Double glazing, offering a good balance between thermal comfort and security;
• Laminate glazing, ideal for enhanced protection against impacts and break-ins.

The price of glazing ranges from €80 to €250 per m², depending on the chosen model and its thickness.

According to your needs, you can customize your glass roof with functional options such as integrated blinds, roller shutters, LED lighting, or even a motorized opening. These additions provide real comfort in daily life, but they also increase the final cost.
On average, these additional features represent an extra cost of €500 to €2,000, depending on the complexity of the installation and the chosen devices.

The installation location influences the total budget. Installing a glass roof indoors (kitchen, living room, hallway) is often less expensive than an outdoor or rooftop installation, which requires structural reinforcements and waterproofing checks.
Constraints related to the presence of load-bearing walls, beams, or existing openings can also affect the price.

The labor represents a significant part of the overall budget. In Belgium, the hourly rate of a specialized craftsman ranges from €45 to €65 excluding VAT, depending on the region and the complexity of the work.

At Avenir Rénovations Belgique, our qualified craftsmen ensure a compliant, aesthetic, and durable installation while respecting your budget.