Complete Guide to Renovation Grants by Trade (Luxembourg 2025)

Publié le 5/1/2025

Complete Guide to Renovation Grants by Trade (Luxembourg 2025)
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Complete Guide to Renovation Grants in Luxembourg (2025)

Planning a renovation project?
Great news: in Luxembourg, several public grants are available to help you reduce your costs — up to 50% in some cases.

This guide breaks it down by type of work, with:

  • ✅ What’s eligible
  • ✅ What conditions apply
  • ✅ What amounts you can expect
  • ✅ How to find the right contractors to help

🛠️ Prohabitat.lu does not handle paperwork, but connects you with professionals who do this every day.


🧱 Insulation Works: Grants and Requirements

💡 Financial support for insulation

  • Klimabonus (formerly PRIMe House)
  • Up to €120/m² for walls, roof, or floor insulation
  • Bonus if you improve your energy class

📌 Eligibility for insulation grants

  • Property built before 2017
  • Work done by a certified contractor
  • Use of approved materials

🎯 Tip: An energy audit boosts your chances and your grant amount.


🔥 Heating System Upgrade: What You Can Receive

💡 Available grants for heating replacements

  • Up to €5,000 for heat pumps, pellet boilers, or solar thermal systems
  • Additional bonus if combined with insulation

📌 Conditions for heating grants

  • Replacing an old or inefficient system
  • Certified equipment only
  • Installed by an approved professional

🌬️ Installing a Ventilation System: Specific Aid

💡 Grant for double-flow ventilation systems

  • Up to €1,750 for a certified mechanical ventilation system

📌 Requirements for ventilation aid

  • Passivhaus or equivalent certification
  • Correct system sizing
  • Installed by a qualified technician

🚪 Windows & Doors: Get Help to Improve Efficiency

💡 Funding for window and door replacements

  • Up to €200 per window (triple glazing)
  • Up to €300 per high-efficiency entrance door

📌 Conditions for carpentry-related grants

  • Replacing older units
  • Uw ≤ 0.9 W/m²·K
  • Installed by a skilled tradesperson

🏠 Full Renovations: Combined Aid Opportunities

💡 Bonus for global renovation projects

  • Combine grants across multiple trades
  • Performance-based bonuses
  • Up to €40,000 or more possible

📌 Conditions for comprehensive aid

  • Energy audit strongly advised
  • Logical sequencing of works
  • All work must meet technical requirements

📞 We’ll Connect You With a Trusted Contractor

Through Prohabitat.lu, you’ll find:

  • Companies with experience in government-funded projects
  • Contractors who know the documentation needed
  • Professionals who can explain the process clearly

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