Services / Park Slope
Master key systems
One key for the super, individual keys per unit — planned properly so it stays that way.
Master systems live or die on how they were charted at the start. We plan the hierarchy before cutting anything so the building can grow without collapsing the system, and we hand over the chart in writing.
- Designed for pre-war multi-family buildings and co-ops
- Super, management, and per-unit access levels
- Written key chart handed to the owner or board
- Expansion planned in from the beginning
Straight answers
What do we get at handover?
The written key chart — who opens what, at every level. The chart is the system; we never hand over a pile of keys without one.
Can the system grow with the building?
Yes, if it is planned in from the start — we chart expansion room for future doors so growth never forces a full re-pin.
Can tenants copy their keys?
Not on a restricted keyway — duplicates require documented authorization, which is the point of the system.
Related work
Emergency lockouts
Locked out of a rowhouse, a co-op unit, or a shop gate. Answered around the clock.
Rekeying & lock changes
New place, old tenant, lost keys, or a contractor who never gave the set back.
High-security cylinders
Medeco, Mul-T-Lock and Abloy — locks whose keys cannot be copied at a hardware store.
Locked out right now?
Call. Describe the door. Get the price. Done.