The reason for the call decides which part changes
A key lost on a walk towards the canal de Jonage, dropped on a track across the plain, or left in a locker on the Meyzieu industrial estate: as long as the mechanism still works properly, only the cylinder is at issue. It comes out with a single screw on the edge of the leaf, without disturbing anything else. What changes is the key secret, not the bolt work that drives the door.
At Les Plantées occupiers change often and the question comes back with every move. A tenant handing keys back, a sale completing, a set of copies that circulated during building work: here too a new cylinder resets everything, and the mechanism itself stays in place and in service, which keeps the job to a single part.
It is the lock body that has to go when the bolt no longer throws cleanly, when the linkage of a multipoint is bent, when the faceplate has been levered. On the older doors of central Meyzieu, a mortice case worn by decades of use is often replaced more soundly than it is repaired part by part.
Choosing something the door can actually take
On a house at Le Carreau the thinking goes beyond the front door. Garage door, side door onto the garden, cellar, pedestrian gate: piling up different keys ends in a bunch nobody controls. A set organised around a single key has to be planned when the cylinders are ordered for the plot, not once they have all been fitted.
In a residence at Les Plantées the landing door also falls under the rules of the block as soon as its appearance changes. The cylinder is yours to replace; a surface-mounted lock, a handle of another pattern or a plate visible from the landing should be checked with the managing agent before ordering, in writing for preference.
In units on the Meyzieu industrial estate the doors are steel and usually take surface-mounted locks. Sizes, fixing centres and handing are rarely standard there, and some leaves date from the first decades of the estate. The model is settled after measuring on site, and the itemised quote comes before the order.
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 Meyzieu.