Energy Renovation: What Budget Should You Plan to Reduce Your Bills?
Publié le 1/26/2025
With rising energy costs, undertaking an energy renovation has become a priority for many homeowners in Luxembourg. These projects not only reduce your bills but also increase the value of your property. Here’s a detailed guide to understanding the budgets needed in 2025 and the priority work to maximize your return on investment.
1. Why Invest in Energy Renovation?
Energy renovations offer several significant advantages:
Lower bills: A well-insulated home can reduce heating costs by up to 50%.
Increased comfort: More stable indoor temperatures year-round.
Reduced environmental impact: Lower energy consumption means a smaller carbon footprint.
Financial assistance: Government subsidies are available to support homeowners undertaking energy renovation work.
2. Average Budget for Energy Renovation in Luxembourg
Costs vary depending on the scope of work, materials chosen, and the property’s size. Here are the average prices in 2025:
Thermal Insulation
Interior wall insulation: Between €80 and €120/m²
Exterior wall insulation: Between €120 and €200/m²
Attic insulation: Between €40 and €80/m²
Roof insulation: Between €150 and €250/m²
Modern Heating Systems
Air-to-water heat pump: Between €12,000 and €18,000
Geothermal heat pump: Between €18,000 and €30,000
Condensing gas boiler: Between €6,000 and €10,000
Underfloor heating: Between €70 and €120/m²
Windows and Joinery
Double-glazed windows: Between €300 and €600 per unit
Triple-glazed windows: Between €500 and €1,000 per unit
Insulated entrance doors: Between €2,000 and €5,000
Solar Panels
Photovoltaic panel installation: Between €8,000 and €15,000 for a standard home.
Storage batteries: Between €5,000 and €10,000
Controlled Mechanical Ventilation (CMV)
Single-flow CMV: Between €2,000 and €3,500
Double-flow CMV: Between €5,000 and €8,000
3. Priority Work to Maximize Savings
For an effective energy renovation, it is advisable to follow a specific order:
a) Thermal Insulation
Start with insulation, as it reduces heat loss. Prioritize walls, roofs, and attics, which account for 50% to 70% of thermal losses.
b) Window Replacement
Triple-glazed windows provide superior insulation and minimize air infiltration.
c) Heating System Upgrade
Install an efficient heating system, such as a heat pump or condensing boiler.
d) Renewable Energy Sources
Installing solar panels can cover part of your energy needs and reduce reliance on external providers.
4. Financial Assistance and Subsidies in Luxembourg
PRIMe House
This subsidy covers part of the costs for energy-efficiency improvements, such as:
Thermal insulation.
Heat pump installation.
Photovoltaic solar panels.
Reduced VAT
Energy renovation work benefits from a reduced VAT rate of 3%, provided the building is over 10 years old.
Municipal Grants
Some municipalities offer additional subsidies to encourage energy renovation projects.
Energy Performance Certificates (EPCs)
Improved energy ratings may also provide access to tax benefits.
5. Tips to Optimize Your Budget
Hire an Energy Auditor
An energy audit helps identify priorities and provides accurate cost estimates.
Choose Durable Materials
Quality materials offer better energy efficiency and longer durability.
Request Multiple Quotes
Compare offers to find the best value for money.
Take Advantage of Available Subsidies
Consult local authorities to maximize the financial assistance available.
6. Mistakes to Avoid
Neglecting the Order of Work
Performing tasks in the wrong order (e.g., replacing the heating system before insulating) can reduce overall efficiency.
Opting for the Cheapest Option
Short-term savings can lead to higher maintenance costs in the long run.
Ignoring Regulations
Ensure your work complies with local standards to avoid fines or legal issues.
Conclusion
Investing in energy renovation in Luxembourg in 2025 is a smart choice to reduce your bills and improve your home’s comfort. With costs varying depending on the scope of work, it is essential to plan carefully and take advantage of available subsidies. Prioritize impactful projects like insulation and heating upgrades to maximize savings while helping the environment.
With thoughtful planning and competent partners, you can transform your property into a high-performance and sustainable home while staying within your budget.
