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The fit-out of a basement is not done like the creation of a classic room. Even before considering the finishes, it is essential to assess the feasibility of the project, as a basement imposes specific technical constraints: humidity, ventilation, waterproofing, ceiling height, structural stability, access, connections...
This is precisely why the cost of a basement fit-out can be difficult to estimate without prior diagnosis. To obtain a reliable estimate, you can call on a specialized company like Avenir Rénovations. We offer you a technical visit, a free quote, and personalized advice to optimize your budget in Luxembourg.
A basement represents a demanding project that requires methodical preparation and rigorous checks. Before starting the work, it is essential to study the condition of the existing structure: humidity levels, ventilation quality, insulation, presence of rising damp, condition of the foundations…
Do you want to transform your basement into a livable space? Create a bedroom, a playroom, an office, or a laundry room? Set up effective drainage to prevent infiltration? All these questions directly influence the final price.
At Avenir Rénovations, a professional visits your home in Luxembourg to conduct a complete analysis. Your Project Manager checks all technical points before proposing a suitable solution. Depending on the configuration and excluding finishes, the price for a basement fit-out generally hovers around €100 / m².
To know your exact budget, request a free quote now.
Once the main construction work is completed (earthworks, backfill, slab), the technical networks are installed to make the space functional. Electricity is an essential step: outlets, switches, lighting, powering equipment…
In a basement, natural light is often limited. It is therefore recommended to plan for more light points than on the upper floors to achieve optimal comfort. This improvement may increase the overall cost, but it remains essential for a pleasant space on a daily basis.
In Luxembourg, for a complete electrical installation in a basement, expect an average of €200 / m², depending on the desired level of equipment and the complexity of the project.
For an accurate estimate, Avenir Rénovations assists you with a personalized quote.
Fitting out a basement often involves several technical interventions, essential to ensure the safety, stability, and compliance of the housing. Avenir Rénovations provides you with qualified craftsmen, selected according to your area in Luxembourg, to offer you comprehensive support.
You can request a quote for all the work related to the fit-out of your basement.
Once the basement is made sound and stable, coverings become essential for comfort and aesthetics. Consider the walls, ceiling, and floor.
For walls and ceilings, plasterboard is often the most used solution. It is economical, easy to install, and allows for the integration of effective thermal insulation.
After the installation and drying of the joints, several finishes are possible:
For the floor, you can choose:
tiles (durable and suitable for wet areas)
parquet (for a warmer look)
Our professionals ensure the complete installation of the chosen covering, with a durable and neat result.
Do you want to transform your basement into a living space?
The teams at Avenir Rénovations optimize and reorganize your basement to create a functional, comfortable room that is perfectly integrated into your home.
To make your basement truly comfortable, you can incorporate additional work, often low-cost but very useful:
These items generally represent a few hundred euros additional, depending on the options chosen.
Here is a summary table of the average prices observed in Luxembourg.
| Types of work | Average price in Luxembourg |
| Installation of floor and wall coverings | 80 € / m² |
| Creation of a concrete slab | 120 € / m² |
| Construction of a staircase | 3,000 € |
| Electrical network | 150 € / m² |
