When a locked door becomes
your emergency, we're already moving.
From 3 a.m. Murray Hill lockouts to full access-control retrofits in Midtown high-rises — Deadbolt dispatches within minutes, not hours.
Commercial Clients
Access control that keeps pace with how Manhattan actually works.
Property managers across Midtown and FiDi trust Deadbolt for full building re-cores, master-key hierarchy design, and fob/card-reader retrofits. When you fire someone at 5 p.m. and need every lock cycled by 8 a.m., we execute — not estimate.
Full Building Re-cores
Every cylinder replaced, documented, and keyed to your hierarchy in a single overnight shift.
Fob & Card-Reader Systems
Schlage, Allegion, and HID installations with audit trail access logs.
Master-Key Hierarchy Design
Grand master, master, sub-master, and change key layouts for buildings with 10 to 1,000 units.

First-Visit Resolution
Locked out at 3 a.m. in Murray Hill? We've done this exact call 847 times.
No call centers, no subcontractors — Deadbolt technicians are direct employees, background-checked and borough-certified. Every residential call arrives with a flat-rate quote before we touch a single pin tumbler.
Emergency Lockouts
Apartment, townhouse, and co-op entries with zero damage to door frames or hardware.
Key Cutting & Duplication
Laser-cut, transponder, and high-security Medeco/Abloy key duplication on-van.
Deadbolt Upgrades
Grade-1 deadbolt installation with NYC DOB-compliant egress hardware on every door.

NYC Fire-Code Compliant
Upgrading from intercom buzzers to fob systems without a board meeting nightmare.
Co-op boards get a single point of contact, a phased installation schedule that doesn't disrupt residents, and full NYC Local Law 126 and fire-code documentation for your next DOB inspection. We've retrofitted 180+ co-op buildings across the Upper West Side, Astoria, and Park Slope.
Phased Fob Rollouts
Floor-by-floor or wing-by-wing installs so residents are never without access overnight.
DOB Compliance Packages
Full Local Law 126 documentation, egress hardware specs, and inspection-ready binders.
Resident Communication Kits
Pre-written notices, FAQ sheets, and key-pickup scheduling for buildings with 20–400 units.

The NYC Building Security Guide — three things your locksmith should have already told you.
128 pages covering rekeying schedules, master-key design, and fire-code compliance. Written for property managers, office managers, and co-op boards — not locksmiths.
What's inside — 3 of 47 chapters
Rekeying Schedules for Multi-Unit Buildings
NYC property attorneys recommend rekeying every unit at tenant turnover and every common-area lock on an 18-month cycle. The guide includes a printable calendar template keyed to your building size.
Master-Key Hierarchy Diagrams
Visual flow charts showing grand-master, master, sub-master, and change-key relationships — with annotated examples from a 120-unit Midtown residential tower and a 6-floor FiDi office building.
NYC Fire-Code Compliance Checklist
Local Law 126, NYC Building Code §1008, and FDNY egress hardware requirements translated into a plain-language checklist your super can walk floor-by-floor before the next DOB inspection.
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Property managers don't give five stars
unless you actually solve the problem.
"Fired a facilities manager on a Thursday. By 7 a.m. Friday, Deadbolt had re-cored all 14 suite entries and the server room. The new key schedule was in my inbox before my first meeting. That's the only vendor I've never had to follow up with."
Marcus Delgado
Office Manager · Harrington Capital Partners
Midtown
"We manage 340 units across three buildings in the UWS. Deadbolt handles every tenant turnover rekey on a 24-hour SLA. In two years, they've missed the window exactly zero times. That consistency is worth more to me than any price negotiation."
Sandra Kowalczyk
Senior Property Manager · Riverside Residential Group
Upper West Side
"Our co-op board voted on fob conversion in October. Deadbolt had every resident with a working fob before Thanksgiving — including the three shareholders who lost theirs the first week. The DOB compliance packet they provided made our next inspection a non-event."
Priya Nambiar
Board President · The Creston Arms Co-op
Astoria, Queens
Ready to stop wondering if someone has a key to your building?
Dispatch available now. Flat-rate quotes before we start.