Master Key System in Mineola, NY

A master key job is priced by door count and by how many levels of access you need, not by a flat rate. A small medical suite near the Winthrop campus with a front door, a few exam rooms, and a supply closet is a simple two-tier setup: master key for the practice manager, individual keys for staff.

The $195 to $850+ range reflects that spread, and the technician quotes your actual number after seeing the doors, not before.

• A multi-tenant apartment building near the LIRR station is more involved: building master, floor sub-masters, and individual unit keys, often across dozens of doors.
• Courthouse-adjacent law offices frequently ask for a third tier separating partner offices from shared file rooms.

Master key installs aren't a lockout, so there's no reason to rush a half-finished job during business hours. Call and the dispatcher passes your job to the nearest technician, who calls you back within a few minutes to talk through the building, the number of doors, and the access tiers you want before quoting a price.

Most owners in Mineola schedule the work for early morning or after close, since the courthouse, hospital, and office traffic on Old Country Road and Jericho Turnpike make daytime access to a commercial building's parking and loading areas tighter. Tell the technician your building's typical quiet hours when you call back and they'll work the visit around it.

Bring a door count and a rough org chart: who's a master-key holder, who's restricted to one door, and whether any doors (a server room, a supply closet, a super's unit) need to be excluded from certain keys entirely. If the building already has a key system in place, note whether you're rekeying from scratch or adding to an existing hierarchy, since that changes both the price and how long the visit takes.

For managed apartment buildings near the station, having a current tenant list on hand speeds up matching new keys to the right units.