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How to choose the right solar installer
Guides and news
10 mars 2026 4 min

How to choose the right solar installer

Choosing the right installer is crucial for your solar project's success. Here are the essential criteria to make the right choice.

Check the business licence

In Luxembourg, every tradesperson must hold a business licence (autorisation d'établissement) issued by the Ministry of the Economy and be registered with the Chambre des Métiers. It is the prerequisite for Klimabonus eligibility and the key mark of legitimacy. Always ask for the licence number.

Compare at least 3 quotes

Vert.lu lets you receive up to 3 quotes from certified installers in your area within 48 hours. Compare prices, equipment and warranties.

Check customer reviews

Other customers' feedback is valuable. Check online reviews and ask for references.

Watch the warranties

A good installer offers an installation warranty (minimum 2 years) on top of manufacturer warranties on panels (25 years) and inverters (10-15 years).

Compare installers