Locksmith in Paris 5, from the Latin Quarter to the Jardin des Plantes

Around the Sorbonne, the Musée de Cluny and the church of Saint-Séverin, the narrow rue de la Huchette and rue de la Harpe are lined with restaurants, bookshops and small hotels. Above them are many studios let by the year or for six months at a time: each time the occupant changes, we fit a new cylinder so that the old keys no longer open anything.

Between the place Maubert market, the Jussieu campus and the Institut du monde arabe, 17th- and 18th-century buildings rub shoulders with university faculties. Narrow stairwells, period doors: reinforcement protects these doors without removing them, so there is no need to haul a new door up the stairwell.

Between the Jardin des Plantes, the Grande Mosquée and the church of Saint-Médard, the lower end of rue Mouffetard lives to the rhythm of its shopkeepers. For them, we repair shop locks and metal shutters; for residents of rue Lacépède or rue Daubenton, we open doors that have slammed shut and replace worn cylinders.

Grandes écoles, research institutes, the former Val-de-Grâce military hospital: the south of the arrondissement is quieter, with elegant late-19th-century apartment buildings along rue Gay-Lussac and boulevard de Port-Royal. Front doors here are tall and heavy; when the frame allows, we fit A2P-certified multipoint locks.