The altar, two pipe organs, and three 13th-century rose windows suffered little or no damage, but the fire contaminated the site and nearby areas of Paris with toxic dust and lead.

[7] On 29 November 2024, eight days before the official reopening, Macron and his wife Brigitte, along with the Archbishop of Paris, Laurent Ulrich, toured the renovated cathedral with the chief architect of France's national monuments, Philippe Villeneuve.

[10] The cathedral choir, directed by Henri Chalet [fr], responded by singing Psalm 122 (which in English begins "I was glad when they said unto me, Let us go into the house of the Lord") three times in Latin.

The third time, the doors were opened,[3][9][11] and the choir then sang Totus Tuus by Henryk Górecki as a small group of participants, including Ulrich and Macron, entered the nave of the cathedral, where the other guests were already seated.

[13] After a performance of an arrangement of the Passacaglia from Handel's Harpsichord Suite in G minor (HWV 432) by Renaud and Gautier Capuçon, Macron gave a speech in which he thanked those involved in the restoration.

[16][17] This was followed by a short religious service in which Ulrich blessed the restored organ, which was heard for the first time since 2019 with a series of responses improvised by Olivier Latry, Vincent Dubois, Thierry Escaich and Thibault Fajoles.

[20] A live concert in the forecourt of the cathedral was also planned but, due to the anticipated effects of Storm Darragh, it was recorded a day earlier by the public broadcaster France Télévisions and aired after the service.

[31][33] The Count of Paris also attended, as did François-Henri Pinault, his wife Salma Hayek[34] and Bernard Arnault in their capacity as major financial contributors to the restoration, as well as actress Carole Bouquet, journalist Laurence Ferrari and designer Jean-Charles de Castelbajac.