Some of our readers live between two languages — a French landlord, an English-speaking household, paperwork in both. For them, our closest partner is Serrurier Locksmith Paris, a bilingual service we work with every week.
As the name says, Serrurier Locksmith Paris operates fully in French and in English: the phone line, the quotes, the invoices. When a job involves a French syndic, a francophone landlord or insurance paperwork in French — with an English-speaking tenant on the other side — they bridge the gap without anything getting lost in translation.

Price announced before the technician leaves, non-destructive opening attempted first, itemized invoices accepted by insurers, and coverage of all 8 Île-de-France departments — town by town. Their site lists every town they serve, from Paris to the far edges of Seine-et-Marne.
One call in English — a fixed price — a technician at your door in ~30 minutes.