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Electricity & gas · Luxembourg
Checked 2026-09-30

🏠 Grants for a heat pump or insulation in Luxembourg: where do I apply?

The short answer

Most countries support home renovation with grants, tax credits or cheap loans. The schemes change often, so always check the official portal before you order work.

📜 The rules in Luxembourg

Grants for heat pumps and insulation

The state's Klimabonus (2026 scheme) supports energy renovation and renewable installations such as heat pumps, solar and wood heating. You apply to the Guichet unique des aides au logement, online via MyGuichet.lu. For renovation, ask for the accord de principe before work starts.

  • An air-to-water heat pump replacing fossil heating in an existing single-family house gets €10,000, a geothermal one €12,000 (Klimabonus 2026 amounts on guichet.lu, checked September 2026). (guichet.public.lu)
  • Requests for an accord de principe for renovation can be made from 1 January 2026 to 31 December 2030. The payment request must follow within 4 years from 31 December of the invoice year. (guichet.public.lu)
Guichet unique des aides au logementReceives and decides Klimabonus applications (MyGuichet.lu or paper form).🔗 guichet.public.lu
Klima-AgenceFree, independent advice on energy projects and the available aid.🔗 klima-agence.lu
Official source: guichet.public.lu · Checked 2026-09-30

🪜 Step by step

  1. Find the national schemeThe official schemes in Luxembourg and who runs them are listed below.
  2. Check the conditions before you orderMany grants must be requested before the work starts, and often need a certified installer or an energy audit.
  3. Get quotesAsk for several quotes that state the equipment and the performance the scheme requires.
  4. Apply on the official portalUse only the official website below. Keep invoices and certificates for the payout or a check.

📇 Who to contact

Guichet unique des aides au logementReceives and decides Klimabonus applications (MyGuichet.lu or paper form).🔗 guichet.public.lu/fr/citoyens/aides/logement-construction/klimabonus-2026/renovation-energetique-logement.html
Klima-AgenceFree, independent advice on energy projects and the available aid.🔗 www.klima-agence.lu

❓ Questions

Can I still apply after the work is done?

Often not. Many schemes require the application before the work starts. Check the official portal.

Is there extra help on a low income?

Some schemes pay more to low-income households. The portal below explains who qualifies.

Someone offers to handle the grant for me. Is that safe?

Be careful with door-to-door or phone offers. Check the company and apply through the official portal.

📎 Sources

Checked: 2026-09-30

🧭 Is this still correct?

We check this information carefully, but phone numbers, websites and rules change — and sometimes we get something wrong. Spotted a mistake or a change? Let us know below.

🔗 Also useful

🌡️District heating, oil and LPG→☀️Solar panels→🤝Help with energy costs→🔄Switching supplier→📈Price increase→

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