Free quote request
At Avenir Rénovations, your quote is made by renovation professionals, it is 100% free and personalized even if we need to visit.
Content translated with AI
Are you considering work in Luxembourg to reduce your heating expenses while enhancing the comfort of your home? Avenir Rénovations supports you with experienced craftsmen, specialized in insulating walls from the inside (ITI) as well as from the outside (ITE).
We offer you a tailored solution, made with high-performance and durable materials, suited to the requirements of your home. Contact us to find out the price of external insulation for a 100 m² house and receive a personalized quote quickly.
The cost of external thermal insulation (ITE) for a surface area of 100 m² in Luxembourg mainly depends on the type of insulation selected. Each material has its own performance in terms of thermal resistance, acoustic insulation, and durability.
At Avenir Rénovations Luxembourg, we guide you towards the most suitable solution for your home, taking into account your energy goals, the technical constraints of the facade, and your budget. The choice of insulation directly influences the total amount of the project.
Here is an estimate of the average prices charged in Luxembourg for a surface area of 100 m², expressed in euros (€).
| Insulation | Average price for 100 m² (€) | Characteristics |
| Expanded polystyrene | 1,200 to 2,400 € | Good economic compromise, effective thermal insulation |
| Extruded polystyrene | About 2,400 € | Excellent moisture resistance and high mechanical capacity |
| Rock wool | 1,800 to 3,500 € | Very good fire resistance, effective sound insulation, vapor-permeable material |
| Polyurethane | 1,800 to 3,000 € | High thermal performance with low thickness |
| Glass wool | 1,400 to 2,400 € | Lightweight, easy to install, performance close to rock wool |
| Wood fibers | 2,000 to 3,200 € | Natural material, improves thermal and acoustic comfort |
| Cellulose wadding | About 2,000 € | Eco-friendly, durable, and effective solution |
An economical and effective solution, expanded polystyrene is widely used for external thermal insulation in Luxembourg due to its good insulating power and lightness. It is perfectly suited for projects aimed at improving the thermal comfort of a house while keeping the budget in check. For a 100 m² home, the cost of the material generally ranges from 1,200 € to 2,400 €. To obtain a complete view of the total amount including installation, it is advisable to request a personalized quote.
Densely packed and more resistant than its expanded version, extruded polystyrene offers excellent performance against moisture and mechanical stress, making it a relevant choice for certain exposed facades. It is particularly suitable for exterior insulation systems under render. For a surface of 100 m² in Luxembourg, a budget of around €2,400 is required for the purchase of the material, depending on the chosen thickness.
Valued for its versatility, rock wool provides both effective thermal insulation and good acoustic protection. Fire-resistant and vapor-permeable, it also helps limit moisture-related issues. To insulate a 100 m² house in Luxembourg, the material price generally varies between €1,800 and €3,500, depending on the quality and performance desired.
Polyurethane stands out for its very high insulating capacity, allowing excellent results with reduced thickness. This material is often favored in energy renovation projects aimed at sustainably reducing heating consumption. For a 100 m² home, the budget to allocate for the insulation averages between €1,800 and €3,000 in Luxembourg.
A lighter alternative to rock wool, glass wool offers comparable thermal performance while being easy to handle and install. It is an accessible solution for improving the insulation of an existing facade. For a surface of 100 m², the material cost generally ranges between €1,400 and €2,400, depending on the chosen thickness and project requirements.
A natural origin insulator, wood fiber is appealing for its ecological qualities and its ability to enhance the thermal and acoustic insulation of a home. Thanks to its breathable structure, it also contributes to the regulation of indoor humidity. For a 100 m² house in Luxembourg, the material price averages between €2,000 and €3,200, depending on the expected performance.
Made from recycled paper, cellulose wadding is an environmentally friendly solution offering good insulating performance and appreciable durability. It is particularly suitable for projects wishing to combine efficiency with reduced environmental impact. To insulate 100 m² in Luxembourg, expect to spend around €2,000 for the purchase of this insulation, excluding implementation costs.
In Luxembourg, the amount for external thermal insulation largely depends on the chosen technique. There are several processes to improve the energy performance of a facade, each with its specificities regarding finish, thickness, and durability. The most common solution remains the ETICS under render, but other systems can be considered depending on the building configuration and the objectives sought.
For a house of approximately 100 m², the total budget can vary significantly based on the selected process, the materials used, and the complexity of the project. On average, in Luxembourg, the overall cost of a complete ETICS ranges from €14,000 to €24,000, including installation.
Here is an overview of the indicative prices practiced in Luxembourg, including supply and installation.
| External insulation technique | Average price per m² (supply + installation) | Estimated price for 100 m² |
| Insulating render insulation | €90 to €140/m² | €9,000 to €14,000 |
| Insulation with rendered panels (ETICS) | €120 to €200/m² | €12,000 to €20,000 |
| Insulation with cladding (wood or metal frame) | €140 to €270/m² | €14,000 to €27,000 |
| Insulation with facing | €160 to €220/m² | €16,000 to €22,000 |
| Insulation with vacuum panels (VIP) | €200 to €320/m² | €20,000 to €32,000 |
Whether carried out under render or with cladding, external thermal insulation (ITE) may involve additional interventions that add to the initial budget. Some services are not always included in the base quote, even though they are sometimes essential to ensure a durable, aesthetic, and compliant result.
Here are the main items that may increase the total cost of your project in Luxembourg.
Before choosing an ITE solution, it may be useful to conduct a thermal study to analyze the energy behavior of the house. This analysis helps identify areas of heat loss, understand the weak points of the building envelope, and guide the choice of the most suitable insulators. To obtain reliable results, it is recommended to consult a certified specialist, such as a recognized thermal engineer.
To detect unwanted air entries, an air tightness test can be conducted. This operation involves pressurizing the home using a blower installed on an opening to accurately measure air leaks. In Luxembourg, the average cost of this check is estimated at around 650 €, depending on the intervention conditions and the configuration of the home.
In addition to studies and checks, other work may be necessary during external insulation. For example, it is sometimes essential to extend the eaves to maintain the aesthetic alignment of the roof and ensure its effectiveness. Depending on the scale of the project, ITE may also involve adapting windows, replacing gutters, or making certain adjustments related to the facade, especially when the intervention is considered a façade renovation.
A project for exterior insulation in Luxembourg?
Tell us about your project and get a quick estimate.
External thermal insulation represents a significant investment, especially for a house of about 100 m². Fortunately, in Luxembourg, several schemes exist to lighten the bill, particularly within the framework of energy renovation. Depending on your situation, these aids can take the form of grants, bonuses, or advantageous financing solutions.
Here are the main aids to know to reduce your budget for external insulation.
In Luxembourg, the most well-known scheme to support energy improvement works is linked to the Klimabonus program (formerly PRIMe House). It can finance part of the external insulation works, provided that the project meets certain technical criteria (insulation performance, implementation, etc.).
The amount of aid varies according to the nature of the works, the level of improvement achieved, and the conditions of the housing. This solution is particularly interesting for reducing the overall cost of external insulation on the facade.
Some households may benefit from enhanced support depending on their financial situation. These schemes aim to facilitate access to renovation for households with modest incomes or for certain priority profiles.
In this context, a higher financial aid may be granted, significantly reducing the remaining costs.
In addition to grants, it is possible to access financing solutions dedicated to energy renovation. In Luxembourg, some banks offer “energy” loans with more favorable terms to finance works such as external insulation.
This allows for spreading the project's cost while improving the energy performance of your home.
Depending on eligibility conditions, certain renovation works may benefit from a reduced VAT rate in Luxembourg. This reduction can apply to labor and/or certain materials, which helps lower the final cost of the intervention.
To check the exact conditions, it is recommended to refer to the current rules and the precise nature of your project.
Whether it is internal insulation (ITI) or external thermal insulation (ITE), the success of your works primarily depends on the choice of the company. By calling on Avenir Rénovations Luxembourg, you entrust your project to experienced building professionals who can offer solutions that align with your expectations, your home, and your budget. Our goal is simple: to provide you with efficient and durable insulation, with comprehensive support.
Do you want to reduce heat loss and enhance the comfort of your home through ITE? Our teams possess real expertise in energy renovation. From the start of the project, our Project Manager organizes an on-site visit to assess the condition of your house and the technical constraints. They then advise you on the most suitable solutions (walls, roof, floors, attics) to sustainably improve the energy performance of your home.
With Avenir Rénovations Luxembourg, you can quickly know the cost of your external insulation for 100 m². After the technical visit, your Project Manager gathers the necessary information to provide you with a complete free quote within about 8 days. This document details the type of insulation recommended, quantities, any additional items, and the total price of the project, so you can plan with peace of mind.
ITE may involve administrative procedures or significant technical choices. That is why we support you at every step. Your dedicated contact helps you understand any potential formalities and informs you about the financial aids available in Luxembourg to reduce the final cost of the works. They also ensure the smooth running of the project, adherence to the schedule, and coherence of expenses.
By entrusting your works to Avenir Rénovations Luxembourg, you benefit from a supervised and controlled project. Your Project Manager oversees all interventions and performs a final check to ensure compliance with standards and quality of execution. Finally, your external insulation works are covered by a ten-year guarantee, for lasting peace of mind.
