Master Key System in Hempstead, NY

The $195 to $850+ range depends on door count and how many levels of access you need. A simple setup, one property manager key plus individual tenant keys, on a small two-family or a handful of apartment doors, sits at the low end.

A full hierarchy with a grand master for ownership, sub-masters for building superintendents, and individual keys for each unit, common in Hempstead's larger apartment buildings and the mid-rise projects going up downtown, costs more because every cylinder has to be cut to fit into the hierarchy without conflicting with another key. Tell the technician the number of doors and how many access tiers you want when they call back, so the quote is accurate before you commit.

Call (516) 636-1712 and the dispatcher takes down the job and your number, then the nearest available technician calls back within a few minutes to talk through the property and quote a price. In Hempstead's dense downtown, where a lot of the building stock is rental apartments packed along Main Street and Fulton Avenue, give the technician the exact address and any access notes, buzzer codes, a super who needs to let them in, restricted parking, so they're not stuck circling the block once they arrive.

Once you accept the quote, the visit gets scheduled for that 15 to 25 minute window.

Have a door count and a rough sense of your desired hierarchy ready when the technician calls: who needs a master that opens everything, who needs sub-master access to a floor or wing, and who only needs their own unit key. If you're a property manager or landlord rather than the owner, have proof you're authorized to have new keys and cylinders installed on the property.

For buildings with existing lock hardware, note the brand or type if you know it, since that affects whether cylinders can be re-keyed into the new hierarchy or need full replacement.