What the door dictates, from barn gate to shrouded multipoint
In the Village you still meet mortice locks sunk into thick leaves, rim locks behind a courtyard gate and barn ironwork with no equivalent in any current catalogue. Centres, bolt travel and the thickness of the timber are measured before replacement is discussed: an identical part does not always exist, and the mortice must not be enlarged.
In the 1970s towers and slab blocks of the Mas du Taureau, flat doors look alike from one stairwell to the next, and that is precisely where the cylinder is often the only thing to change. A key copied through a run of tenants wears the barrel while the mechanism behind it is still sound. Length matters too: neither proud of the escutcheon nor recessed.
On the recent developments at the Carré de Soie the multipoint is shrouded and its linkage runs inside the leaf. You do not move from one family of lock to another without touching the frame, so the work usually stays with the cylinder — exact length, cam correctly positioned. Five millimetres out and the top bolts stop answering the key.
Landlord, managing agent, master key: who owns the decision
Many homes at the Mas du Taureau and La Grappinière belong to a social landlord. The flat door is theirs, and the cylinder may sit inside a master-key scheme where one key also opens the gate and the bin store. Replacing the barrel quietly breaks that arrangement, so ask first: the landlord will say whether to stay in the scheme.
In private blocks — the recent residences at the Carré de Soie, the small blocks of Les Grolières — the rule is simpler but still worth checking. What lies inside your flat is yours; shared access is not. A building badge, a hall strike or the door of a communal store go through the managing agent, never landing by landing. Mixing the two is how a stairwell ends up with keys nobody can trace.
A key lost on the banks of the Grand Large, a flatmate moving out, a copy that has been circulating for years: in each case the cylinder is what holds the secret, and it is the only part that has to go. The written quote comes before the work, the itemised invoice after it.
How does this service work?
Techniques, typical situations, standards and things to watch out for: it is all on our lock and cylinder replacement page. This page focuses on what the service involves in Vaulx-en-Velin.