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Master Key Systems in New York City

One master key, total control β€” designed for buildings and businesses.

β˜…β˜…β˜…β˜…β˜… 5.0 Β· 22 Google reviewsπŸ•’ Open 24/7πŸ“ 156 Delancey St, NYC

Professional master key systems β€” done right

A master key system lets a manager open every door with one key while each tenant or employee key opens only their own. We design, install, and maintain master key systems for apartment buildings, offices, retail spaces, and mixed-use properties across New York.

Good system design starts with a keying schedule: who needs access to what. We map your floors, units, and common areas, then pin cylinders so the hierarchy works exactly as planned β€” master, sub-master, and individual change keys with no cross-keying surprises.

We also service existing systems: adding new doors, rekeying after tenant turnover, cutting additional keys under restricted keyways, and expanding the system as your property grows.

What's included

  • Custom keying schedules for your property.
  • Master, sub-master, and change-key hierarchies.
  • Restricted keyways that prevent unauthorized copying.
  • System expansion and tenant-turnover rekeying.
  • Ongoing key control and record-keeping support.

Master Key Systems across NYC neighborhoods

We bring master key systems to every neighborhood we serve. Local guides:

Frequently asked questions

Any multi-unit building or office with more than a few doors benefits. Even a six-unit walk-up runs smoother when the super carries one key instead of twelve.

Yes. We'll survey your current cylinders, document the hierarchy, and either maintain it or rekey it into a cleaner system.

We build systems on restricted, patented keyways. Blanks are only available through us with your written authorization.

Get Master Key Systems

Open 24/7 β€” call or send a request.

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πŸ“ž Call (212) 300-7173