Why choose Avenir Renovations?
Why insulate the walls of your home in Luxembourg?
Improve thermal comfort
Wall insulation helps limit heat loss, which accounts for up to 25% of a home's energy losses. In winter, it keeps heat inside; in summer, it protects against temperature rises, ensuring constant comfort throughout the year.
Reduce energy bills
Poorly insulated walls lead to overconsumption of heating and air conditioning. By investing in high-performance insulation, you can reduce your energy expenses by up to 30%, while increasing the value of your property in the Luxembourg market.
Enhance your real estate asset
A well-insulated home benefits from a better energy rating. This improvement in the Energy Performance Certificate (DPE) increases the value of your property, a major advantage when selling or renting.
Contribute to ecological transition
Choosing high-performance insulation also means reducing your carbon footprint. Less heating means lower CO₂ emissions. Avenir Rénovations Luxembourg is committed to using environmentally friendly and certified materials.
Steps of a wall insulation project with Avenir Rénovations Luxembourg
A successful wall insulation project relies on a rigorous methodology and technical choices suited to the home. With Avenir Rénovations Luxembourg, each step is carefully planned, from the initial diagnosis to the finishes, in order to sustainably improve energy performance, thermal comfort, and the overall quality of your home.
The different types of wall insulation
Wall insulation plays a crucial role in the energy performance of a home by limiting heat loss and improving thermal comfort on a daily basis. Depending on the building configuration and technical constraints, various insulation solutions can be implemented to achieve durable and suitable results.
External insulation involves wrapping the building in a continuous insulating layer. This method eliminates thermal bridges and significantly improves overall performance. It also allows for facade renovation without reducing the interior living space.
Interior insulation is ideal for homes where the exterior facade cannot be modified, especially in condominiums. Insulating panels are installed against the walls, providing effective protection against heat loss and allowing for quick installation.
Some Luxembourgish buildings have double-wall structures. Injecting an insulating material (such as polyurethane foam or mineral wool) into the empty space effectively enhances energy performance without heavy work.
During a comprehensive renovation, wall insulation can be combined with facade renovation or interior renovation. This optimized approach helps reduce costs and achieve better energy consistency for the building.
How much does wall insulation cost in Luxembourg?
Wall insulation is a profitable long-term investment. The cost depends on the type of technique used, the materials chosen, and the area to be insulated.
| Type of service | Price per m² (EUR) | Average total price (EUR) |
| Interior insulation (mineral wool) | 76 to 114 € | 4,750 to 11,400 € |
| Exterior insulation (polystyrene or wool) | 143 to 238 € | 9,500 to 23,750 € |
| Cavity wall insulation by injection | 48 to 86 € | 2,850 to 7,600 € |
| Eco-friendly insulation (hemp, wood fiber) | 171 to 266 € | 11,400 to 26,600 € |
These prices include the supply of materials, labor, and finishes. A personalized quote allows for an accurate estimate based on the configuration of your home.
Which materials to choose for wall insulation?
Rock wool
This mineral material is valued for its fire resistance, thermal and acoustic insulation, as well as its durability. It is perfectly suited for wall insulation from both the inside and outside.
Glass wool
Lightweight, economical, and very effective, glass wool remains a popular choice for interior wall insulation. It offers good thermal resistance and quick installation.
Expanded polystyrene (EPS)
Mainly used for exterior insulation, EPS offers excellent thermal performance. It is moisture resistant, durable, and easy to install, ideal for facades exposed to wind and rain.
Polyurethane
Polyurethane is a high-performance synthetic insulation with very high insulating power. It allows for thin insulation, perfect for homes where interior space is limited.
Bio-based insulators
For ecological projects, natural insulators like wood fiber, hemp, or cellulose wadding offer excellent thermal and hygrometric regulation. They are perfectly suited to Luxembourg's environmental standards.
The advantages of wall insulation performed by Avenir Rénovations Luxembourg
Local expertise
Thanks to our knowledge of the Luxembourg climate and local regulations, we offer solutions tailored to each region, whether in Luxembourg City, Esch-sur-Alzette, Differdange, or Ettelbruck.
Certified and durable materials
We exclusively use insulators that comply with European standards, ensuring performance and longevity. Each material is chosen for its energy efficiency and low environmental impact.
Comprehensive support
Avenir Rénovations Luxembourg manages your project from diagnosis to completion of the work. We also advise you on financial aids and subsidies available for energy renovation in Luxembourg.
Guaranteed results
Our services are covered by ten-year warranties, ensuring the durability and quality of your insulation. Your thermal comfort and energy savings are our priority.
Regulations on wall insulation in Luxembourg
The thermal insulation of buildings is subject to several regulations in Luxembourg to ensure energy performance and the safety of homes. Avenir Rénovations Luxembourg ensures that each project strictly complies with current standards.
Permits and administrative authorizations
Any external insulation that alters the appearance of the facade requires municipal authorization. This process ensures that the work complies with local urban planning regulations, especially in classified or protected areas. Internal insulation, on the other hand, generally does not require a permit.
Thermal standards and energy requirements
Luxembourg applies the SIA 380/1 standard and the Grand-Ducal regulation on the energy performance of buildings. These standards define the maximum U-values for insulated walls. Avenir Rénovations ensures that the materials used comply with these thresholds to guarantee effective and durable insulation.
Compliance with environmental rules
Insulation projects must limit waste and prioritize eco-friendly materials. Bio-based or recyclable insulators are encouraged. Our teams ensure that these criteria are met to contribute to the sustainability of Luxembourg's built environment.
Case of old or listed buildings
Old or heritage-protected houses require a specific approach. Internal insulation is often preferred to preserve the external aesthetics. Avenir Rénovations collaborates with municipal services to validate each project before work begins.
Financial aid for wall insulation in Luxembourg
The Luxembourg state and certain municipalities offer subsidies aimed at encouraging energy efficiency work.
Grant for energy renovation
This aid covers part of the cost of insulation, depending on the performance achieved after the work. It applies to both interior and exterior insulation and can amount to several thousand Swiss francs depending on the area.
Klimabonus aid
The Klimabonus program supports households that carry out insulation work with sustainable and high-performance materials. Homeowners can receive additional grants if they use eco-friendly insulators such as wood fiber or hemp.
Tax deductions
Some expenses related to energy renovation can be deducted from taxes. Avenir Rénovations Luxembourg advises you on preparing the files and maximizing the available aids according to your municipality.
Maintenance and durability of wall insulation
Longevity of insulating materials
Well-executed insulation can last over 30 years without loss of performance. Modern materials withstand climate variations and humidity, ensuring long-lasting protection for your walls.
Minimal maintenance
Maintenance is low, especially for interior insulation. For exterior facades, light cleaning or refreshing the coating every ten years is sufficient to maintain aesthetics and performance.
Periodic thermal inspection
To verify the effectiveness of your insulation, a thermal camera inspection can be conducted every five years. This diagnosis helps detect any thermal bridges and anticipate necessary repairs.
Errors to avoid when insulating walls
Neglecting the initial diagnosis
A poor assessment of the walls can lead to moisture or condensation problems. That is why Avenir Rénovations systematically conducts a complete diagnosis before any insulation installation.
Choosing unsuitable materials
Every home has its specifics: type of wall, exposure, climate, ventilation. Using inappropriate insulation can reduce energy efficiency. Our experts always select the most suitable material for your building.
Forgetting ventilation
Insulation reduces air exchange with the outside. Therefore, it is essential to plan an efficient ventilation system to avoid mold and ensure good indoor air quality.
Why entrust your insulation to Avenir Rénovations Luxembourg
Qualified and certified craftsmen
Our teams have all the necessary qualifications to carry out insulation in accordance with Luxembourg standards. Each project is supervised by a dedicated project manager.
Recognized expertise in energy renovation
With hundreds of projects completed in Luxembourg, Avenir Rénovations is a reference in the field of energy renovation. Our solutions are proven and personalized.
Comprehensive support
From the technical study to the grant application, we guide you at every step. Our goal is to simplify your life while ensuring a sustainable improvement in the comfort of your home.
FAQ on wall insulation in Luxembourg
What is the best insulation method for walls?
The choice depends on the building's configuration. External insulation offers maximum performance and eliminates thermal bridges, while internal insulation is easier to implement without altering the existing facade.
What thickness of insulation is needed to properly insulate walls?
The thickness varies depending on the material used and the desired thermal resistance. On average, 10 to 15 cm is recommended for external insulation and 8 to 12 cm for internal insulation, according to local energy performance standards.
Can wet walls be insulated?
It is necessary to address moisture before insulating. If the walls show rising damp or infiltrations, prior waterproofing is mandatory to prevent damage and ensure the effectiveness of the insulation.
How long do insulation works take?
The duration of the project depends on the area to be treated and the chosen method. Generally, one to two weeks is required for a complete internal insulation and three to four weeks for external insulation with finishes.
Does wall insulation improve acoustic comfort?
Yes, insulating materials like rock wool or cellulose wadding effectively reduce external noise. You thus benefit from additional acoustic comfort alongside enhanced thermal performance.
Does external insulation change the facade?
Yes, but it also provides an opportunity to modernize your facade. Avenir Rénovations offers various coatings (plasters, renders, cladding) to harmonize aesthetics while enhancing the building's energy performance.
Improve your comfort with Avenir Rénovations Luxembourg
Insulating the walls is a key step to make your home more energy-efficient, comfortable, and environmentally friendly. Whether you choose interior or exterior insulation, Avenir Rénovations Luxembourg provides you with its expertise, high-performance materials, and tailored support.
Trust our team to transform your home and sustainably reduce your energy bills. We operate throughout the country: Luxembourg City, Esch-sur-Alzette, Differdange, Ettelbruck, Dudelange, and the surrounding areas.
Contact Avenir Rénovations Luxembourg today to get a free and personalized quote for your wall insulation project.
