09/02/2026
Your buzzer rings, but the front door still won't open.
That one is almost never the intercom.
Nine times out of ten it's the electric strike, the relay, the transformer or a door that's fallen out of alignment — the hardware downstream of the buzzer. Which is why "replace the whole intercom" is usually the wrong first answer, and why we test the full entry path before quoting anything.
Unlimited Applications Security Company has been repairing intercoms and apartment door buzzers in Brooklyn for 30+ years — Park Slope and Carroll Gardens brownstones, Bed-Stuy and Crown Heights walk-ups, Bushwick and Williamsburg conversions, Bay Ridge, Flatbush, Canarsie, Sunset Park and Downtown Brooklyn.
What we get called for most:
🔧 Apartment buzzers that don't ring at all
🔧 Lobby panels with dead, worn or missing tenant buttons
🔧 One-way audio — the visitor can't hear you, or you can't hear them
🔧 Calls ringing the wrong apartment
🔧 Doors that stay locked after the release is pressed
🔧 Telephone entry and video intercom upgrades
We service Aiphone, Lee Dan, TekTone, Comelit, DoorKing, Akuvox and ABB systems, plus Adams Rite door hardware.
Most qualifying common repairs: flat $150–$250, with a 30-day repair warranty. No diagnostic-fee games. Bigger jobs — full panels, multi-unit wiring, obsolete system replacement — get a free itemized estimate after we actually look at the building.
Same-day service may be available depending on schedule, equipment and parts.
Licensed, insured and bonded. Owner-operated. We answer the phone.
📞 (347) 433-6873
🔗 https://www.uasecurity.com/Intercom-Systems-Brooklyn-New-York.htm
Supers, boards and property managers — save this one. The 4pm "nobody can get in the building" call always comes eventually.
