Acquaintances of mine have renovated an old house and have benefited from free insurance during the period of work. Is this true?

LALUX effectively offers you free insurance against Fire while the work is being done.
Any other risks taken into account by the policy will come into effect when the construction or renovation work is completed.
LALUX considers the work to be finished when the following conditions have been met:

• for Storm risk, the building must be entirely closed and covered with doors and windows fitted permanently;
• for Water damage and Broken Window risks, the building must be entirely closed and covered with doors and windows fitted permanently, and bathroom installations must be fitted and the heating system must function under proper control.