Master Key System in Glen Cove, NY

The $195 to $850+ range comes down to two things: how many doors are in the system and how many levels the hierarchy needs. A small downtown apartment building near Glen Cove Avenue with a simple two-tier setup (one master, individual tenant keys) sits at the lower end.

That's a normal request and it's priced into the quote up front, not added as a surprise later.

• A mixed-use property or a multi-building portfolio, where you need sub-masters for different floors, wings, or buildings, plus a top-level grand master, costs more because each additional tier means recoding or replacing more cylinders.
• Property managers overseeing several addresses, including the newer condo and apartment buildings going up around Garvies Point, often ask for a phased rollout so the whole complex isn't down to bare cylinders at once.

Call (516) 636-1712 and a dispatcher takes down the property details and your number. A local technician calls back within a few minutes to talk through the building, door count, and whether you're setting up a new system or reworking an old one, then gives you a price before anything is scheduled.

For occupied buildings, most managers prefer install work during business hours or a low-traffic window so tenants aren't stuck outside their own doors mid-swap. If you manage more than one Glen Cove property, mention that on the call so the technician can plan a visit sequence that keeps disruption to a minimum.

Have your door count and a rough sense of the hierarchy you want: who needs access to everything, who needs access to one unit or office, and whether any doors already share a key. If you're converting an existing building rather than starting fresh, note which locks are original and which have been swapped over the years, since mismatched hardware can affect how cleanly a master system fits.

Property managers should also have proof of authorization for the building on hand, since master key work touches access for every tenant or unit, and a legitimate locksmith will ask for it before cutting keys to a commercial hierarchy.