Multi-tenant intercom repair . NYC and tri-state

Apartment intercom down? We repair one unit or the whole building.

One tenant cannot buzz visitors in, or every apartment in the building is dark. Apartment intercoms share power, risers and head-end hardware, which is exactly where failures hide. We isolate the fault fast and get the building back online.

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HOW MANY UNITS ARE OUT? 6 patterns
BUILDING · ONE APARTMENT DEAD
WHERE IT USUALLY BREAKS
Power Head-end Riser Drop Station Strike

Every other apartment works. One cannot hear visitors, cannot buzz them in, or both. That unit's station, handset or its own wire. An isolated fix, almost always same-visit.

FIRST THING WE CHECK
The station in that apartment, then its drop to the closet.
All patterns 06
BUILDING · 01 / ONE APARTMENT DEAD

One apartment dead

Every other apartment works. One cannot hear visitors, cannot buzz them in, or both. That unit's station, handset or its own wire. An isolated fix, almost always same-visit.

FIRST THING WE CHECK
The station in that apartment, then its drop to the closet.
BUILDING · 02 / ONE FLOOR OR STACK DEAD

One floor or stack dead

Apartments on one floor or one vertical stack are out while the rest work. A fault on that shared riser: water, a corroded splice, or damage from other building work. Common after plumbing repairs.

FIRST THING WE CHECK
The riser serving that stack, traced to the fault.
BUILDING · 03 / WHOLE BUILDING DOWN

Whole building down

No apartment can hear the door or open it. The shared power supply, the lobby panel or the head-end failed. Nobody can let a visitor in, and the door is often stuck locked or stuck open.

FIRST THING WE CHECK
Power and the head-end in the common closet.
BUILDING · 04 / RANDOM APARTMENTS, RANDOM DAYS

Random apartments, random days

Different apartments report problems on different days. Not random: the system is browning out, or a connection in the common closet is failing, and it hits whoever tries first.

FIRST THING WE CHECK
Power and connections in the closet, logged if needed.
BUILDING · 05 / DEAD AFTER CONSTRUCTION

Dead after construction

It worked before a renovation, a repipe, a facade job or a scaffold. A cable was crushed, cut or reconnected wrong. Common and fixable: we find the break and repair that section.

FIRST THING WE CHECK
The cable path through the area that was worked on.
BUILDING · 06 / DEAD AFTER A STORM OR OUTAGE

Dead after a storm or outage

A storm, a utility outage or a building electrical fault took it down and it never came back. Usually the transformer or the controller board, sometimes a surge that took out one station.

FIRST THING WE CHECK
The transformer and the controller board.
Licensed and insuredNYC low-voltage licensed, fully insured
Any brand servicedIncluding systems we did not install
Same-day when it mattersPriority when the whole building is out
Every affected unit testedCall, audio both ways and door release
Where building intercoms fail 06

The six layers, in the order we check them.

How many apartments are out tells us the layer. We start in the common closet and work outward.

01

Shared power supply or transformer

The transformer that drives the whole intercom failed or is browning out. No apartment can release the door, and there is no tone. Common in pre-war buildings with 30-year-old transformers. A straight swap once isolated.

Power
02

Head-end or lobby panel

The entrance panel or its controller board failed. Buttons do nothing, the lobby speaker is silent, the directory is dark. Parts on the truck, or a next-day order for discontinued panels.

Head-end
03

Shared riser cabling

The vertical cable serving a column of apartments shorted, broke or corroded at a splice. Water, construction damage or old insulation that cracked. We repair the damaged section, not the whole riser.

Riser
04

One apartment's wire

The wire to one unit broke, often inside a wall after a renovation. A single-apartment symptom, fixed between that apartment and the common closet.

Drop
05

Apartment station or handset

The apartment's own handset speaker, call button or release button failed. We match the station where parts exist, or fit a compatible substitute.

Station
06

Door release or strike

Calls work, you press the button, and the door does not open. The strike or release hardware failed on its own. A different repair, same visit.

Strike
Whole building out

Nobody in the building can buzz in?

A full-building outage is a priority call. Nobody can let a visitor in, and the door is often stuck locked or stuck open. It almost always lives in the common closet: the power supply, the head-end or the lobby panel.

Count the apartmentsOne, one stack or the whole building tells us the layer.
Note recent workRepipes, renovations and storms cause most riser faults.
Get us into the common closetThat is where we start.
Any brand, even if we did not install it

You do not need the original installer.

Most of our building work is on systems installed by companies that are no longer around, with no drawings and no idea what brand is in the vestibule. 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 buildings, from 2-unit brownstones to complexes with hundreds of apartments.

AiphoneMircomDoorKingDoorBirdAkuvoxUniFiLinearButterflyMXComelitLegacy buzzers

The door release and lock side

The strikes and release hardware that let the door open. Most buzzer complaints turn out to be this layer, and we handle the whole chain.

Electric strikesMaglocksRelease buttonsTransformers
Repair or replace

Repair first. We say when it is time for a building-wide upgrade.

When we repair

Most building calls are a repair: a transformer, a riser section, a lobby panel, a station, a strike. Targeted fixes that keep the building's system. We do not rip and replace when a repair gets the entrance working.

When we recommend replacing

The panel line is dead with no parts anywhere, the building has had three or more intercom calls in a year for different causes, or the board already decided to add video or app answering. Then we lay out the upgrade honestly.

Explore intercom installation →
The repair visit 04

How a building call goes.

Four steps, starting in the common closet.

01

Phone triage with the super

How many apartments, which floors, when it started, any recent construction, plumbing or power event. Five minutes tells us the layer and whether it is same-day.

02

On-site isolation

Common closet first, where the shared gear lives: power and the head-end. Then we walk out to the affected apartments. The first 20 minutes finds the layer.

03

Fix, or part on order

Transformers, standard strikes, popular handsets and common lobby panels are same-visit. Specialty parts get a firm order date and a workaround so the entrance stays in service.

04

Test every affected unit

Visitor rings, apartment speaker works, audio both ways, door release fires, in every apartment in scope. Written summary for the building file.

WHO WE HELP
Building ownersSupersProperty managersCo-op and condo boardsCommercial buildingsHomeowners
Frequent questions 07

Apartment intercom FAQ.

No. A single-apartment repair is billed to that unit, or to the owner, per your building's policy. The super or manager gets a written summary so it is clear what was done and who is charged. Whole-building issues are a building expense.
We ask how many units are affected. One apartment points to its hardware or its wire. A floor or stack points to a shared riser. The whole building points to the head-end: power, controller or lobby panel. That answer halves the diagnostic before we leave the shop.
Almost always, yes. Plumbing work often nicks, crushes or reroutes intercom risers that share a chase with the pipes. The damage is usually at one point we can trace and repair. You do not need to rewire the whole riser.
Most building work happens during business hours. We coordinate with the super or managing agent for access to apartments and the common closet. True emergencies, such as a dead building or a security concern, get same-day or after-hours response.
Yes. In New York City, multiple dwelling owners are responsible for working entry communication and door release under the Housing Maintenance Code and the Multiple Dwelling Law. HPD complaints about broken intercoms lead to violations. We keep buildings compliant.
Yes. We work on everything from 2-unit brownstones to complexes with hundreds of apartments. Larger buildings have more complex head-end gear, and that is where we spend most of our diagnostic time. Same approach, same honest pricing.
Same-day across NYC when the schedule allows, with priority where the entrance is unsecured or tenants cannot get in. Call 212-347-5400 for the soonest window.
Get the building back online

Building intercom down? Pick the fastest way to reach us.

FASTEST FOR OUTAGESCall 212-347-5400

Talk to a technician and get an honest arrival window.

 SEND A PHOTOText 646-838-2300

A photo of the lobby panel or the common closet speeds up the fix.

 NOT URGENTRequest a quote

Describe the system and we will come back with a clear plan.
OTHER INTERCOM PROBLEMS
Buzzer will not open→ No audio→ Video panel blank→ Lobby panel dead→ App not connecting→ Telephone entry→ Handset replacement→ All intercom problems→ Intercom repair→