Intercom Systems
Entry panels, apartment stations, buzzers and door release. Legacy analog risers, 2-wire retrofits, IP and cloud panels, and the New York law that makes a working intercom an obligation rather than an amenity.
Services
Everything between the sidewalk and the apartment door
Four categories of work: entry intercoms, access control, cameras, and the low-voltage cable underneath all three. Most buildings need at least two of them, and the seam between them is where jobs usually fail.
The four categories
Start with the one that matches your problem
Each of these opens onto a set of specific service pages. If you are not sure which category your problem lives in, the symptom table further down will tell you.
Access Control
Fobs, cards, keypads and phone credentials on one side; electric strikes, maglocks, request-to-exit and egress code on the other. Both halves have to be right or the door is either insecure or illegal.
Security Cameras
IP camera systems sized by pixel density on target and honest retention math. The failure mode we get called to fix is a system that recorded everything and identified nobody.
Low Voltage & Cabling
Cat6 and Cat6A, fiber backbones, riser pulls, racks, PoE switching and wireless. Every system above is limited by this one, and it is the layer most often quoted by someone who never measured the run.
Why one contractor
Jobs don’t fail in the middle. They fail at the seam.
A typical New York building job touches at least two of these four categories. A lobby entry replacement is an intercom job that ends in an access control job the moment somebody asks for fobs. A camera system is a cabling job with cameras on the end of it. An elevator restriction project is access control, cabling and a coordination problem with the elevator company all at once.
When those pieces are split across three vendors, nobody owns the interface. The cabling contractor pulls what the drawing said. The camera contractor arrives with hardware the switch cannot power. The access control vendor mounts a magnetic lock on a door where code does not permit one, because the door schedule they were handed did not say the assembly was fire-rated. Each of them did their scope correctly. The building still has a broken system and three companies pointing at each other.
We do all four, which means the interface is ours. The cable is specified for what will actually hang on the end of it. The door hardware is chosen against the egress requirement before it is ordered, not after an inspector looks at it. The camera at the entrance is positioned knowing exactly where the reader and the intercom panel are going, because we are mounting those too.
That is the whole argument. It is not a philosophy, it is arithmetic: fewer handoffs, fewer places for the job to fall through.
Failure modes
Six seams we see broken over and over
None of these are exotic. Every one of them is a job somebody already paid for that has to be paid for again.
- PoE budget, not port count. A 24-port switch rated 370 W of PoE cannot run twenty-four PoE+ devices. That needs 612 W. Bullet cameras with heaters and large touchscreen door stations with integrated IR routinely exceed the 12.95 W an 802.3af port guarantees. The switch was bought before anyone added up the loads.
- A magnetic lock on a fire-rated door. Maglocks are fail-safe by definition: they hold only while powered. A fire-rated assembly has to stay positively latched to contain smoke, so the hardware on it must be fail-secure and listed for that use. Mounting a maglock there voids the door’s label, and re-labeling is not a field procedure.
- A relay wired straight to a strike coil. Cloud entry panels ship with dry-contact relays that are not rated to switch an inductive load directly. Without an isolating buffer relay, the coil’s collapse kicks back into the contacts and welds them. The panel then either holds the door unlocked or never releases it again.
- No door position switch anywhere. A building can have readers, credentials and a full audit log and still have no idea that the service door has been propped open since March, because nothing on the door reports whether it is closed. Without door position you cannot generate a forced-open or held-open alarm, and you cannot prove the latch ever re-seated.
- The fire alarm interface set wrong. An access power supply’s fire alarm input drops selected outputs, and the selection is per output for a reason: maglocks on stair doors must release, fail-secure strikes on rated doors must not. Setting it as one global disconnect is either a code violation or a hole in the building, depending on which way it was wired.
- Nothing labeled at either end. The single cheapest thing a contractor can do for a building is write on the cable. The single most expensive thing they can do is not, because the next person re-pulls a run that already exists, or worse, guesses.
Triage
What the building is doing, and where that lives
Describe the symptom rather than the equipment and you will land on the right page faster.
| What you’re seeing | What it usually is | Where to read next |
|---|---|---|
| Buzzer sounds, door never releases | The signal path is fine and the fault is downstream: strike coil, the wire between amplifier and strike, a tired door transformer, or a latch loaded against the keeper by a warped door | Intercom repair |
| Panel dials the resident, they press 9, nothing opens | The tone never survives the trip. Copper retirement moved the line onto a carrier VoIP path that compresses DTMF away | Intercom systems |
| Whole building lost intercom audio at once | One shorted or water-damaged apartment station is loading the shared bus. It is found by halving the riser at the distribution point, not by replacing the panel | Intercom repair |
| Someone moved out and we can’t revoke their fob | Either the system has no per-credential management, or the administrator account is registered to a contractor rather than to the building | Key fob entry systems |
| Reader beeps but the door doesn’t unlock | The beep only proves the reader read something. The event log tells you whether the credential reached the controller at all, and a blown output fuse looks identical to a dead strike from the hallway | Access control |
| Gate operator won’t move in either direction | A monitored entrapment device has faulted. Current operators supervise their photo eyes and edge sensors continuously and refuse to run when one is dirty, misaligned, water-intruded or cut. That refusal is the safety feature, not the fault | Gate & parking access control |
| We have the footage but can’t identify anyone | Pixel density on target, not camera count or megapixels. The camera was aimed at a scene rather than at a distance | Security cameras |
| Cameras keep dropping off the network at night | Usually power, not network: PoE budget exceeded when IR illuminators and heaters all come on together, or voltage drop at the far end of a long thin run | Low voltage & cabling |
If none of these match, describe what the building is doing in plain words when you contact us. Symptom descriptions are more useful to us than model numbers.
Full index
Every service page on the site
Sixteen specific pages under the four categories. Each one is written for the job it names, not as a variation on a template.
Intercom systems
- Intercom installation: new audio or video entry systems, wired or IP, sized to the building rather than to a catalog page.
- Intercom repair: dead handsets, silent panels, buzzers that ring but never release, and the diagnostics behind each.
- Intercom replacement & upgrade: obsolete systems, discontinued parts, and the retrofits that reuse existing riser cable.
- Video intercom systems: lobby panels with cameras, in-unit monitors, and phone apps, including what each costs you in dependency.
- Apartment building intercom systems: multi-tenant systems from 6 to 200+ units, and what Multiple Dwelling Law §50-a actually requires.
- Door buzzer systems: buzz-in entry for walk-ups, storefronts, offices and back-of-house doors.
Access control
- Access control installation: complete door-control systems, one door or a portfolio.
- Key fob entry systems: fob entry plus the credential management that stops it becoming a filing cabinet full of unknown fobs.
- Mobile & cloud access control: phone-as-credential platforms, browser administration, and the offline questions to ask before signing.
- Elevator access control: floor restriction by credential, relay-per-floor and high-level integration.
- Gate & parking access control: vehicle gates, garage doors, loops, and the entrapment protection the operator supervises.
Security cameras
- Security camera installation: new IP systems for buildings, storefronts, offices and homes.
- Commercial security cameras: retail, restaurant, warehouse and office systems, including hardware for buyers with federal exposure.
- Security camera repair & upgrades: systems that stopped recording, cameras that went dark, and coax-to-IP migration that keeps the existing cable.
Low voltage & cabling
- Structured cabling: Cat6 and Cat6A, fiber backbones, racks and patch panels, tested to standard and labeled at both ends.
- WiFi & access point installation: commercial wireless and building-wide coverage that survives brick and plaster-on-lath.
Work is also organized by building type (apartment buildings, co-ops and condos, property management portfolios, retail, restaurants, warehouses, schools, houses of worship and private homes) and by where the building is, because a landmarked Brooklyn Heights facade and a Suffolk County strip mall are different jobs with the same equipment list. The technical library goes deeper on the subjects that come up in every survey.
What we don’t do, and why we say so
Fire alarm, monitored burglar alarm and central-station monitoring are separate regulated activities. Line-voltage electrical work and locksmithing are separate trades. None of them are in our scope, and we do not pretend otherwise to keep a job.
This matters more often than it sounds, because our work touches theirs constantly. An electrically locked egress door has to release when the fire alarm activates. The compliant arrangement is that we provide and land a relay in an enclosure next to the fire alarm panel, and the building’s fire alarm contractor makes the connection at the panel itself and performs the acceptance test. We will tell you when a scope crosses that line and we will coordinate with the trade that holds the right ticket rather than quietly doing it ourselves.
FAQ
Common questions
I only need one thing done. Is this set up for small jobs?
Yes. A single storefront buzzer, one dead camera or one door that needs a reader are all normal work, not a favor. Small jobs are also how most of the larger ones start, because a building rarely knows the full picture until somebody has opened a panel and looked.
What we will not do is quote a small job without seeing it when the answer genuinely depends on what is behind the wall. A price given over the phone for a door nobody has looked at is a guess, and guesses become change orders.
How do I know which category my problem belongs to?
You do not have to. Describe what the building is doing in the words you would use to a neighbor (the buzzer rings but the door stays locked, the cameras stopped recording sometime last year, the fobs still work for people who moved out) and we will place it.
The triage table above covers the eight symptoms we hear most. It is deliberately written from the symptom side rather than the equipment side, because most callers know exactly what is happening and have no reason to know what the box in the basement is called.
Can you take over a system another contractor installed?
Usually. The first thing we establish is whether the platform is administrable by anyone other than the original installer: whether the cloud account is registered to the building or to a company, whether the controller has published documentation, and whether the credentials in circulation are a standard technology or a proprietary format that only one distributor sells.
Where a system is genuinely locked, we will say so plainly and price both options: living with it, or migrating off it. Migration is often much cheaper than people expect, because the cable, the strikes and the door hardware usually stay and only the head end and credentials change.
Do you work as a subcontractor for general contractors and architects?
Yes, and that work runs differently. On a fit-out we want the reflected ceiling plan, the door schedule and the mechanical drawings early, because three things get decided before we arrive: whether the ceiling return is a plenum, which doors are on rated assemblies, and where the telecom room actually is.
Getting those three answers before rough-in is the difference between one cable pull and two. Guessing on the plenum question alone can mean pulling an entire floor of cable back out, because riser-rated jacket is not permitted in a plenum space and the substitution only runs one way.
Do you charge for the site survey?
No, not for a standard survey anywhere in the service area. We look at the riser, panel, doors, cable and network, photograph what we find, and write it up.
Destructive or diagnostic investigation is different: opening finished walls, dismantling a riser, or a full point-to-point continuity test across a large legacy system is real labor and gets quoted separately before any of it starts.
What hours do you work?
Regular business hours, Sunday to Thursday, plus Friday mornings. We are not an around-the-clock operation and we would rather say that than promise a callout we cannot honor.
The exception in practice is a building nobody can get into. A dead entry panel or a failed door release goes to the front of the queue, and that usually means same day or next business day, within business hours.
Related
Work that usually comes with this
Intercom Systems
Installation, repair and replacement of entry intercoms, from a six-unit walk-up buzzer to a 200-unit IP video system.
Access Control
Fobs, cards, keypads and phone-based credentials, plus the locking hardware and egress compliance behind them.
Security Cameras
IP camera systems designed around identification distance and retention, not camera count.
Low Voltage & Cabling
The Cat6, fibre, risers, racks and wireless that everything else depends on.
Property Management
Portfolio work: one vendor, consistent hardware, COIs on file, documented every time.
Apartment Buildings
Walk-ups and elevator buildings, 6 units to 200+, and the law that governs their entry systems.
Tell us what the building is doing.
Describe the symptom, the building and roughly how many doors or units are involved. You’ll get a technical answer and a written scope, not a sales call.
Sun to Thu 9am to 5pm · Fri 9am to 12pm · Sat closed