Master Key System in Cove Neck, NY

A master key system is priced by door count and by how many levels the hierarchy needs, not by a flat rate. A single-building setup with one master and a handful of change keys sits at the low end.

A property with a main house, guest house, boathouse, and staff entrances needs a deeper hierarchy, more cylinders to rekey or replace, and more keys cut, which moves the job toward the $850+ end. On a peninsula estate, the technician will walk the property first to count doors and confirm which locks can be rekeyed versus which need new hardware, then quote a firm number before starting.

Cove Neck is car-dependent with no LIRR station of its own; the closest is Oyster Bay on the Oyster Bay Branch. The technician drives in on Cove Neck Road or Cove Road, so if your property sits deep in the woods off either road, have gate codes ready or plan to meet at the entrance.

Estate properties near Sagamore Hill can have long private driveways, so a clear address and any landmark near your gate helps the technician find the right entrance on the first pass rather than circling.

Have a rough door count ready: main house exterior doors, any outbuildings, gates, and interior doors you want on the system, plus how many key holders need which level of access. If you're replacing an existing master key system rather than starting fresh, know whether you want to keep any existing keys working or cut everyone out and start clean.

Call (516) 636-1712, a dispatcher takes the job details and your number, and the nearest technician calls back within a few minutes to talk through the property and give you a real price before anyone is scheduled.