Luxembourg offers one of Europe’s most generous energy renovation support programmes. Between PRIMe House, Klimabonus and municipal grants, you can fund up to 70% of your work. Here’s a complete overview of available schemes.
PRIMe House: The main programme
The PRIMe House programme is Luxembourg’s central energy renovation support scheme. It covers:
Eligible work
- Thermal insulation: roof, walls, floors, cellar
- Windows: replacement with double or triple glazing
- Heating: heat pumps, high-performance boilers
- Renewable energy: solar panels, solar thermal
- Ventilation: double-flow heat recovery ventilation
PRIMe House grant amounts
| Work type | Standard grant | Enhanced grant* |
|---|---|---|
| Roof insulation | Up to €100/m² | Up to €150/m² |
| Wall insulation | Up to €150/m² | Up to €200/m² |
| Triple glazing windows | Up to €150/m² | Up to €200/m² |
| Heat pump | Up to €8,000 | Up to €12,000 |
| Solar panels | Up to €500/kWp | Up to €750/kWp |
*Enhanced grant for modest-income households
Klimabonus 2024-2025
Klimabonus supplements PRIMe House with additional bonuses for:
- Replacing oil/gas boilers with heat pumps: +50% bonus
- Comprehensive energy renovation: up to 30% additional
- Can be combined with PRIMe House: yes
Important: Klimabonus amounts increase in 2025. See our Klimabonus 2025 guide for details.
Municipal grants
Many Luxembourg municipalities offer additional support:
| Municipality | Additional grant |
|---|---|
| Luxembourg City | +10% on insulation |
| Esch-sur-Alzette | +€500 solar panels |
| Differdange | +15% on heat pumps |
| Dudelange | +€200/window |
Contact your municipality to find out what’s available.
How to access the grants
Step 1: Energy audit
Have an energy audit carried out on your home. Cost: €500-1000 (partially subsidised).
Step 2: Get quotes
Request multiple quotes from qualified contractors. On tack.lu, you can get up to 3 free quotes.
Step 3: Submit application
Before starting work, submit your grant application on MyGuichet.lu.
Step 4: Complete the work
Have the work done by approved professionals (mandatory condition).
Step 5: Get reimbursed
Submit invoices to receive reimbursement within 30-60 days.
Mistakes to avoid
❌ Starting work before approval: No grant will be paid ❌ Forgetting municipal grants: Money lost ❌ Choosing unqualified contractors: Work not eligible ❌ Not keeping invoices: Unable to provide proof
Grant stacking: Practical example
Situation: 150m² house renovation, insulation + heat pump + windows
| Item | Cost | PRIMe House | Klimabonus | Municipality | Total grants |
|---|---|---|---|---|---|
| Roof insulation | €8,000 | €3,000 | €500 | €300 | €3,800 |
| Wall insulation | €15,000 | €6,000 | €1,000 | €600 | €7,600 |
| Heat pump | €16,000 | €8,000 | €4,000 | €800 | €12,800 |
| Windows | €10,000 | €4,000 | €500 | €400 | €4,900 |
| TOTAL | €49,000 | €21,000 | €6,000 | €2,100 | €29,100 |
Remaining cost: €49,000 - €29,100 = €19,900 (59% reduction)
Our advice
The administrative process can be complex. Use tack.lu to find certified contractors who:
- Know the standards required for grants
- Help you with the paperwork
- Guarantee your work’s eligibility
Ready to renovate? Request your free quotes and maximise your grants.
