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Guide · Bee Locksmith

How to replace an old analog intercom in a pre-war building

Many pre-war buildings still run on analog intercoms installed decades ago: a lobby panel, a riser cable and a handset in each apartment. When the system starts failing, the board has three real options. Here is how we help buildings choose and how the job runs.

Signs it's time

  • Apartments that can hear the lobby but can't talk back, or the reverse
  • Buzzers that release the door for some lines and not others
  • Hum, static or dead stations after a riser is disturbed
  • Parts for the panel or handsets no longer available

Product images: manufacturer marketing materials.

Your three options

  1. Repair. If the panel and riser are sound, we fix the failed part: the amplifier, a handset, a line or the door release. This is the lowest cost when it works.
  2. Like-for-like analog replacement. A new analog panel and stations, such as Aiphone or Lee Dan, using the existing riser where it tests good. Residents keep a familiar handset.
  3. Upgrade to IP or app-based video. A new video entry panel with residents answering on their phones, and optional in-apartment monitors. This often avoids pulling new cable into every apartment.

How the job runs

  1. Survey: the entry, the riser, a sample of apartments and the door release.
  2. Written estimate with options side by side, including any yearly software cost.
  3. Resident notice and directory collection, coordinated with the managing agent.
  4. Install at the entrance first, then apartments if needed, so the building is never without a way in.
  5. Test every line or every app account, then hand over the directory to whoever will manage it.

Don't forget the door

Most "intercom" complaints are partly door problems. A closer that doesn't pull the door shut, or a strike that binds, stops the door from latching or releasing. We include the closer and hardware and the electric strike in the survey.

Read more on analog intercom service and choosing an IP platform.

Frequently asked questions

Do we have to rewire every apartment?

Not necessarily. App-based video systems mostly need wiring at the entrance only, and some analog and 2-wire systems can reuse the existing riser if it tests good.

Will residents lose intercom service during the change?

We plan the work so the entrance always has a working way in, and give the managing agent a schedule for resident notice.

Can elderly residents keep a handset in the apartment?

Yes. Like-for-like analog systems and hybrid IP systems with indoor monitors keep an in-apartment unit.

Do you repair old Lee Dan and Aiphone systems?

Yes. We service Lee Dan and Aiphone systems and quote replacement only when repair is a poor value.

Request a building survey

Call 212-837-4444, 24/7, or send the job details. Written estimate, invoice terms, no card to start.

Call 212-837-4444