Buzzer not working? We repair any brand, in any building.
The door will not buzz open, there is no sound at the intercom, or it buzzes nonstop. We diagnose and repair apartment and building buzzers across all five boroughs and the tri-state, whatever the brand and whoever installed it.
You hear the visitor, you press the release button, and the door does not open. Almost always the electric strike, the release button or the power supply, not the intercom itself.
Press the button, nothing happens
You hear the visitor, you press the release button, and the door does not open. Almost always the electric strike, the release button or the power supply, not the intercom itself.
It will not stop buzzing
The door buzzes constantly, or the intercom makes a continuous tone. Usually a release button stuck somewhere in the building or a short in the riser. A strike that stays energized wears out and leaves the door unsecured.
Buzzes, but no sound
The visitor rings and you can buzz them in, but you cannot hear or talk to them. The handset speaker, the apartment station or the lobby microphone has failed.
One apartment dead
Every other apartment works. One cannot hear the door, cannot buzz visitors in, or both. A failed station, a damaged handset, or a break in the wire to that unit.
Whole building down
No apartment can hear the door or open it. The shared power supply, the lobby panel or the riser has failed. Nobody can let a visitor in, and the door is often stuck locked or stuck open.
Lobby panel or directory dead
A call button does not register, the directory is unlit, or the entrance speaker is silent. Weather, vandalism or age. Repairable in almost every case.
The six common culprits, in the order we check them.
A buzz-in has two halves, the intercom and the door release. We check both.
Power supply or transformer failure
The low-voltage transformer that powers the strike and the intercom dies or browns out. No apartment can release the door, and often there is no tone. Common in pre-war buildings where the transformer is 30 or more years old. A straight swap.
Worn or stuck release button
The most common single-apartment cause. Years of presses pit the contacts and tire the springs. The button stops making contact, or sticks closed and buzzes nonstop. A cheap part, and the first thing we test.
Aged or corroded wiring
Pre-war risers run on decades-old wire. Corroded splices, cuts from renovation work and water shorts are all common. We trace and repair the fault, not assume a full rewire. Most jobs need one section fixed.
Failed apartment station or handset
The speaker, button or handset in one apartment fails on its own. We match the station where the brand is still supported, or fit a compatible substitute where it is discontinued.
Lobby panel or speaker failure
Call buttons stop registering, the entrance speaker goes silent, or the directory goes dark. Vestibule hardware takes weather and abuse the apartment stations never see. Usually fixed with parts on the truck or a next-day order.
Electric strike or release hardware
The intercom works, the visitor rings, you press the button, and the strike does not open. The lock has seized, worn out or lost power. A different repair from the intercom side, and we carry the common strikes on the truck.
Door will not open, or buzzing nonstop?
Both are priority calls. A door that will not release keeps visitors out. A strike that buzzes nonstop wears out and leaves the entrance unsecured. Call and we tell you how to keep it safe until we arrive.
You do not need the original installer.
Or the paperwork, or even to know the brand. Most of our repair calls are on systems installed by companies that are long gone. We identify what is there, source the part, and fix both halves of the buzz-in.
The intercom and call side
Multi-tenant intercoms and telephone entry systems across NYC, plus the unbranded tin-can buzzers in pre-war buildings.
The door release and lock side
The electric strike and release hardware that actually opens the door. Most buzzer calls turn out to be this layer, and it is where many intercom-only shops stop short.
We fix first, and tell you when a repair is not the smart spend.
When we repair
Most calls are a repair: a bad button, a failed transformer, a broken strike, a corroded splice. You keep your existing system. That is the right default for most NYC buildings.
When we recommend replacing
The panel is discontinued and parts are gone, the system has failed three or four times in a year, or the repair costs more than a new system, especially if you were already planning video or phone answering. Then we lay out the upgrade path with real trade-offs and no pressure.
Explore intercom installation →How a buzzer call goes.
Four steps, and every affected apartment is tested before we leave.
Phone triage
How many apartments are affected, when it started, any recent renovation or power issue. Five minutes tells us if it is a same-day emergency or a scheduled visit.
On-site diagnostic
Power to the panel, continuity on the riser, voltage at the strike, contact at the handset. The first 15 minutes finds the layer that failed.
Fix, or part on order
Buttons, transformers, standard strikes and popular handsets are same-visit. Specialty parts get a firm return date and a temporary workaround where possible.
Test every apartment
Call rings through, audio both ways, door release fires, in every apartment in scope. Written summary for the building file.
Buzzer repair FAQ.
Buzzer down? Pick the fastest way to reach us.
Talk to a technician and get an honest arrival window.
SEND A PHOTOText 646-838-2300A photo of the lobby panel or the apartment station speeds up the fix.
NOT URGENTRequest a quoteDescribe the system and we will come back with a clear plan.