Your intercom is the first line of defense at your front door — and the first impression every visitor gets of your property. But not every building needs a camera at the vestibule. Sometimes a clean, reliable audio buzzer is exactly right. Sometimes you're flying blind without video. Here's how to tell the difference.
What Audio-Only Intercoms Do Well
Audio intercoms are simple by design: a call button at the entry panel, a speaker and call button at each unit, and a wire running between them. That simplicity is their advantage.
- Installed cost typically runs $200–$600 for a small residential building
- Fewer components mean fewer points of failure — a well-installed audio system can last 15–20 years
- No network dependency, no app to update, no camera lens to clean
- Common brands like Aiphone and Nutone have been standard in NYC buildings for decades, and parts are readily available
Audio-only makes sense when you have a doorman or concierge who can visually verify visitors, when the building is a single-tenant small office, or when budget constraints are real. If someone is already at the desk watching the door, a video intercom is a redundant cost.
NYC housing code note: New York City's Housing Maintenance Code requires that residential buildings maintain a working buzzer or intercom system that allows tenants to grant access to visitors without leaving their unit. This applies to virtually all multi-family buildings — so a broken system isn't just an inconvenience, it's a code violation.
Where Video Intercoms Earn Their Price
Video intercoms start around $800 installed for a basic single-entry system and can run $3,000 or more for multi-entry IP systems with smartphone integration. The cost increase buys you something concrete: visual confirmation before you buzz anyone in.
That matters more than you'd think. Audio is easy to fake — someone can claim to be a delivery driver, a maintenance worker, or a neighbor's guest. A camera at the door removes the guesswork. You see who's there. You see if they're alone. You see if they're holding a package or a clipboard — or something else.
Beyond identity verification, video intercoms provide:
- Deterrence — a visible camera at the entry point discourages loitering and opportunistic access attempts
- Entry event logs — IP systems record who rang, when, and whether they were buzzed in
- Package theft reduction — you can see a delivery driver leave a package and know exactly when it arrived
- Smartphone access — modern IP video intercoms let you answer and buzz in from anywhere via mobile app
When Video Is the Clear Choice
For most NYC properties without a full-time doorman, video is worth the investment. Specifically, prioritize video when:
- You manage a multi-unit residential building with high tenant turnover
- You operate a retail storefront with after-hours delivery windows
- The building receives frequent package deliveries to a shared vestibule
- You're managing the property remotely and can't be there to verify visitors in person
- There have been tailgating or unauthorized entry incidents in the past
The NYC Wiring Problem
Here's where it gets practical for older New York buildings. Most pre-war and mid-century buildings were wired for simple 2-wire audio intercoms. Upgrading to video traditionally required running new coax or Cat5e/Cat6 cable — an invasive and expensive job in buildings with limited conduit space or finished walls.
The good news: several modern IP video intercom systems are engineered to work over existing 2-wire infrastructure. Brands like 2N and certain Aiphone product lines offer 2-wire-compatible video systems that can dramatically cut the cost of an upgrade. The picture quality isn't always as sharp as a dedicated Cat6 run, but it's a practical path in buildings where running new cable would require opening walls.
When a full rewire is in scope, Cat5e at minimum — Cat6 preferred — gives you the bandwidth to run HD video and future-proof the installation for IP access control integration down the line.
The Bottom Line
Audio intercoms are a legitimate, long-lived solution for the right property. But if your building lacks a doorman, handles deliveries to a shared entry, or houses multiple tenants who need to remotely grant access, a video intercom isn't a luxury — it's the standard you should be operating at.
Not sure which system fits your building's wiring and your budget? Contact Seneca Security for a free on-site assessment. We've installed intercoms in pre-war walk-ups, luxury condos, and commercial storefronts across all five boroughs — and we'll tell you straight what makes sense for your property.