Exterior renovation in Luxembourg

Our exterior renovation services

• Comprehensive diagnosis of the facade, roofing, and joinery
• Facade renovation and crack treatment
• Installation of external thermal insulation
• Roof refurbishment and leveling of the drainage system
• Replacement of external joinery and shutters

Process of an exterior renovation project

The initial diagnosis examines each aspect separately before proposing a coherent technical solution and a personalized quote for each aspect.

The preparation and protection of the site precede the actual work, often carried out in a specific order to limit disturbances and share access means such as scaffolding.

A complete exterior renovation project generally lasts from two to six weeks depending on the number of aspects treated simultaneously and the surface area of the building concerned.

Prioritize aspects when the budget is limited

Start with what protects the structure

When not all aspects can be addressed at once, roofing and facade waterproofing generally take precedence over pure aesthetics. An untreated waterproofing defect continues to degrade the building's structure, while a purely aesthetic renovation can wait without structural consequences.

Spread out the aspects without losing coherence

A global diagnosis from the start allows for spreading the work over several years while maintaining a coherent overall vision. This avoids treating the facade one year and then having to reopen scaffolding two years later for the roofing, a common situation for owners who proceed aspect by aspect without an established overall plan beforehand.

Areas of intervention in Luxembourg City

• Gare District: dense buildings, nineteenth-century facades
• Belair, Limpertsberg: mansions to preserve
• Bonnevoie: terraced houses, sometimes limited access
• Kirchberg: recent buildings, preventive maintenance

Regulations in Luxembourg

A modification of the building's exterior appearance, whether it concerns the facade, roofing, or joinery, generally requires municipal authorization, especially in neighborhoods with protected old buildings like the Gare area.

External thermal insulation may be eligible for the Klimabonus 2026 as well as the super-reduced VAT of 3% for a property over ten years old used as a primary residence.

Why choose Avenir Rénovations for your exterior

An overall view of the building

We systematically evaluate the interaction between facade, roof, and joinery rather than treating each element in isolation, for a truly coherent thermal performance across the entire building.

A pooling of construction resources

Combining multiple work elements allows for the sharing of scaffolding and logistics, resulting in a significant saving on the overall cost of the project conducted as a whole.

A comprehensive administrative support

We guide you through the necessary municipal permits and available aids, ensuring a project carried out without last-minute administrative surprises.

Combine work elements and prioritize according to budget

Addressing the facade, roof, and joinery at the same time is not mandatory, but combining these elements often allows for shared scaffolding and better overall thermal performance. When the budget is limited, the roof and facade waterproofing deserve priority, as an untreated defect at this level continues to degrade the structure, unlike purely aesthetic renovations that can wait. The necessary permit also depends on the nature of the work: a like-for-like renovation rarely requires a permit, unlike a change in appearance or color.

Construction timeline, aids, living on-site and neighborhood

Expect two to six weeks of construction depending on the number of work elements addressed, with a project combining facade and roof naturally requiring more time than a standalone renovation. The Klimabonus 2026 particularly covers external thermal insulation, subject to performance conditions, and can be combined with other schemes. Living in the property during external works is possible in the vast majority of cases, as these works are carried out entirely outside with limited impact on daily life inside; however, in co-ownership or attached housing, prior notification to the neighbors is recommended, especially when the scaffolding temporarily encroaches on a common or shared space.

Scaffolding, an expense to share

The assembly of scaffolding represents a significant portion of the budget for an exterior renovation, sometimes several thousand euros depending on the height and complexity of the building. This expense remains the same whether addressing a single element or multiple at once, which explains why combining facade, roof, and joinery in the same project is often more economical in the long run.

Our teams systematically evaluate this opportunity during the initial diagnosis, presenting the client with a quote that clearly distinguishes the cost of scaffolding from the cost of the work itself, for an informed decision on whether to combine the elements or not.

Breathe new life into your exterior

A well-thought-out exterior renovation provides lasting protection for the building while significantly improving its thermal comfort and perceived value.

Our teams operate throughout Luxembourg City, offering a free diagnosis that covers facades, roofs, and joinery before any final quote.

In the Gare district, where the density of buildings often imposes specific access constraints, good coordination among the various trades makes all the difference in the actual duration of the project. Grouping interventions rather than spacing them out over time also limits inconvenience for neighbors, an important point in such a dense urban environment.

A free technical visit remains the best way to obtain a clear view of the priorities to address according to your budget, with no obligation of any kind.