Manhattan work is elevator work, board work, and landmark work

Mostly, yes. The reader install in the cab and the controller work in the machine room are done with the car available, and the disruptive part is the short window when relays are landed on the car operating panel wiring: usually one car at a time, a few hours each, scheduled with the elevator maintenance company because the car operating panel is their equipment and their liability.

The item that decides the whole schedule is the traveling cable. If it has spare conductors, we use them. If it does not, adding conductors is elevator-contractor scope with its own lead time, and we will tell you that at survey rather than after you have approved a number. In a building with a modern destination-dispatch system there may be no cab work at all, because the integration happens in software.

A scope document written so a board can actually vote on it: exactly which doors, exactly what hardware, what we are reusing, what we are replacing, what happens to the existing panel and directory, how many days of work and inside which hours, and a fixed price with any genuine unknown named as an unknown with a capped allowance rather than buried in a lump sum.

Alongside that, whatever the alteration agreement puts on its checklist: the managing agent’s forms, a drawing where one is asked for, and a work schedule that respects house rules. Plan on four to eight weeks between submitting and starting. Boards meet monthly, architects comment, certificates come back for correction, and the calendar rather than the wiring is what sets your start date.

More than owners usually expect, but not without a permit. The Landmarks Preservation Commission is concerned with everything visible from the street, including the side elevation if you are on a corner. That covers the intercom faceplate, any camera housing, exterior readers or pedestals, surface conduit, and changes to entry door hardware.

The workable approach is almost always to keep the existing wall opening and change what sits in it, choose a finish and profile consistent with the facade, and route cable internally so nothing new appears on the masonry. Depending on what is being changed, that lands as a Certificate of No Effect or a Permit for Minor Work rather than the far slower Certificate of Appropriateness. We identify which route your job is on at survey, because it is the difference between a few weeks and a few months.

A desk covers the front door during the hours it is staffed. It does not cover the service entrance, the garage, the roof bulkhead, the stair doors, the package room, the bike room, the laundry, or the elevator itself. In most buildings those are exactly where the losses happen.

The other thing a desk does not produce is a record. When a board asks who was in the building on a Tuesday afternoon, a logbook gives you handwriting and a system gives you a timestamped list. The sensible pattern in an attended Manhattan building is to keep the human at the door for judgment and hospitality, and put the system on everything the human cannot see.

Yes. If they are 125 kHz proximity credentials, the generation most New York buildings installed in the 1990s and 2000s, they transmit a fixed number in the clear with no encryption and no mutual authentication. A handheld duplicator costs under twenty dollars, and a documented test cloned one in about fifteen seconds. Retail kiosks in some supermarket chains now copy them for consumers as a convenience.

The migration is undramatic. Multi-technology readers read both the old prox credentials and encrypted 13.56 MHz or phone-based credentials, so you run both for a re-badging cycle and then switch the legacy side off. One caution worth stating: “13.56 MHz” on its own is not a security claim. The chip family and whether the installer changed the factory keys are what matter, and plenty of deployed cards are still running default keys.

Both. Roosevelt Island, ZIP 10044, is effectively a self-contained community with roughly 14,000 residents, a small number of very large buildings, and its own access and parking arrangements, a much more campus-like problem than the rest of the borough.

Marble Hill is the borough’s odd one out: administratively Manhattan, physically on the mainland next to Kingsbridge in the Bronx, and built like the Bronx: small pre-war apartment houses and one- and two-family homes rather than towers. We scope it against what is actually there, not against its mailing address.