Elevators, Boilers, Gas Lines: The Building's Machines Have Records Too

Beyond housing violations, NYC buildings carry separate DOB safety records for their equipment: gas lines, elevators, and boilers each generate their own violations and inspection files. Gas-safety violations alone number 110,668 in the current records. A building that lets these pile up — or lets inspections lapse — is telling you something the apartment tour won't. All public by address.

Most of a building's file is about living conditions — the HPD world of heat, pests, and leaks. But a building is also a machine, or a stack of them, and the machines have their own paperwork, filed with the Department of Buildings, entirely separate from the housing-conditions record. It's the part of the file almost nobody checks, and it's where some of the most concrete warnings live.

Elevators

There are 119,963 elevator devices in the city's records, each with a status — and the statuses tell small stories. Active is the one you want. But the record also carries Sealed (taken out of service), Dismantled, Removed, Withdrawn, and Work in Progress — and if a building has one elevator and its status is anything other than active, the fifth-floor apartment you're considering just became a fifth-floor walk-up, possibly indefinitely.

Elevators run on a strict inspection regime — annual inspections plus periodic testing, filed with DOB — precisely because the failure mode is catastrophic. The useful renter's read: is the device active, and are its inspections current? A building whose elevator inspections have gone quiet isn't necessarily dangerous, but it's a building that's stopped filing paperwork on the one machine everyone rides, and that's worth a question.

Gas lines

Of every equipment category the city tracks, gas generates the most violations — 110,668 gas-safety violations in the current records, more than elevators and boilers combined. There's a reason the city watches gas hardest: the failure mode is an explosion, and NYC has had the news cycles to prove it.

Since Local Law 152, gas-piping systems in most buildings must be inspected on a periodic cycle by a licensed professional and the results filed with DOB. A gas-safety violation on a building's record means an inspection or complaint surfaced a problem with the gas system — and the status of that violation (open, resolved) tells you whether it was dealt with. This is the one equipment category where "still open" deserves no benefit of the doubt: a building with unresolved gas-safety violations is carrying the record's most serious ongoing risk. If a building's file shows gas violations, the only comfortable version is the one marked resolved.

(Electrical work lives in a different record — it shows up in the permit history rather than as its own safety category, which is one more reason to read the permits.)

Boilers

The boiler is the machine your winter depends on, and the city knows it: 872,049 boiler inspection filings sit in the records, because every boiler must be inspected and the results filed annually. 68,872 of those filings record that defects exist.

Here's the read that matters. A boiler with a defect on file is a boiler someone flagged and, ideally, fixed — check whether later filings show it resolved. But the quieter warning is the missing filing: a building whose boiler inspections have gaps, or whose filing status sits in limbo, is a building that may be deferring the exact maintenance that keeps heat on in January. When you're reading a building's file in July, the boiler record is a weather forecast for February.

(Elevators and boilers also generate their own safety violations — 59,407 and 48,170 respectively in the current records — separate from the device-status and inspection filings above. The status tells you if the machine runs; the violations tell you what inspectors flagged. A report reads both.)

Why these differ from HPD violations

Worth understanding the distinction, because the two record types answer different questions. An HPD violation is about living conditions — the apartment is too cold, has mold, has pests. A DOB device record is about the equipment itself — the boiler that produces the heat, the elevator that moves you, independent of whether a tenant has complained yet. The device record is often the earlier signal: equipment degrades before conditions fail, and the machine's file can show you trouble that hasn't reached an apartment yet. Read alongside the permit history and the DOB violation record, the device files complete the picture of a building's physical health.

Check a building's full mechanical and violation record in one search. Your first three reports are full reports, free — cheaper than one winter of a boiler someone stopped inspecting.