Why choose Avenir Renovations?
What types of attic renovations do we carry out in Brussels?
Our teams operate in all neighborhoods of Brussels to transform attics into sustainable and functional living spaces:
- Fit-out of bedroom(s) under the roof, studio, parental space, or teleworking space
- Creation of a custom staircase to access the attic
- Thermal and acoustic insulation of the roof (internal or external)
- Reinforcement or modification of the floor structure
- Installation of lightweight partitions (Gyproc, Fermacell) to define spaces
- Creation of sloped ceilings, false ceilings, beam coverings
- Creation of water points for bathroom or kitchenette
- Replacement or installation of roof windows (Velux) to maximize light
- Compliance of electricity, heating, and ventilation
- Integration of custom storage in the eaves
We adapt our interventions to the specific characteristics of Brussels architecture, whether it is a mansion, a bel-étage house, or an old apartment building. Each attic presents unique constraints in terms of height, slope, access, and ventilation. Our teams know how to analyze and address them.
The steps of an attic renovation project in Brussels
Transforming an attic into a living space requires a rigorous technical approach and excellent coordination among trades. Here are the main steps:
Why choose Avenir Rénovations Bruxelles?
Fitting out an attic is not something to improvise. It requires both technical skills (structure, thermal, waterproofing) and a good understanding of local regulations. That is why it is essential to be supported by an experienced local professional.
We take charge of your project in its entirety: technical study, administrative procedures, material selection, management of craftsmen, finishes. You have a dedicated point of contact who coordinates the stages and keeps you informed of progress. This guarantees you a smooth project, without unpleasant surprises.
Following our visit, we provide you with a detailed, free, and non-binding quote. This quote takes into account all necessary items: insulation, structure, coverings, carpentry, techniques, stairs, finishes. We adapt it to your needs and the configuration of the building, while respecting your budget.
We guide you towards the best technical solutions to maximize space, meet PEB requirements, improve acoustics, and fully enjoy natural light. We help you anticipate the evolution of your needs: fit-out for young adults, rental, multipurpose space, etc.
What is the cost of an attic renovation in Brussels?
The cost of an attic fit-out depends on many parameters: surface area, available height, existing condition, accessibility, number of rooms created, level of finish, complexity of technical connections.
Here are some indicative benchmarks:
| Type of service | Average price including tax |
| Interior roof insulation | 40 to 80 €/m² |
| Creation of a custom wooden staircase | 3,000 to 6,000 € |
| Installation of 2 roof windows (Velux) | 1,500 to 3,000 € |
| Complete attic fit-out (20 to 30 m²) | 1,000 to 1,600 €/m² |
| High-end renovation with integrated bathroom | 1,700 to 2,500 €/m² |
When the home is over 10 years old, you may benefit from the reduced VAT rate of 6%, applicable to work carried out by a licensed contractor. This measure significantly reduces the total cost of the renovation. Avenir Rénovations helps you check your eligibility and complete the necessary formalities.
Are there grants for renovating an attic in Brussels?
Yes. Several financial aids from the Brussels-Capital Region can be mobilized for attic renovation, provided that the work concerns the building envelope or improves its energy performance.
The following works are eligible for RENOLUTION grants:
- Insulation of the roof or slopes (up to 50 €/m² for mineral wool, 72 €/m² for bio-based insulators)
- Installation of roof windows with super insulating glazing (up to 180 €/m²)
- Ventilation works (simple or double flow systems)
- Accessibility modifications if the attic is intended for accessible use
- Health works if the attic was uninhabitable or unusable
For certain grants, a housing audit is mandatory. We help you plan the work in the optimal order, consult an accredited auditor, and compile your file. The amount of the grants depends on your income category and the type of building.
Official info: www.renolution.brussels
Give new life to your attic with Avenir Rénovations Brussels
Do you want to transform your attic into a bedroom, office, playroom, or independent living space? Trust your project to Avenir Rénovations Brussels. Our local teams support you from A to Z, respecting standards, deadlines, and your budget.
Request your free quote now and unlock the hidden potential of your attic in Brussels.
Agency Avenir
Rénovations
for Attic renovation in Brussels: transform your attic into a true living space
An expert to take charge of your renovation projects and guarantee deadlines, budgets and quality of all services.
