Most drain calls fall into one of two categories: a single fixture that's slow or blocked (a kitchen sink full of grease, a bathroom sink or tub clogged with hair and soap scum), or a main line issue where multiple fixtures back up at once or a basement floor drain overflows. The right tool depends on which one it is — a cable snake clears a localised clog quickly, while hydro-jetting (high-pressure water that scours the full diameter of the pipe) is the better call for grease buildup, root intrusion, or a line that's clogged the same way more than once.
New York City's plumbing stock skews old, and a lot of it is still cast iron rather than PVC — cast-iron pipe corrodes and roughens on the inside over decades, which gives grease and debris something to catch on that a smooth newer pipe wouldn't. Buildings on blocks with restaurants or food-service tenants nearby also see more grease-related main-line issues, since fat, oil and grease poured down any connected drain eventually narrows the shared line everyone on it depends on.
A drain that clears with snaking and stays clear is a one-visit job. A drain that clogs again within weeks, or that's slow across multiple fixtures at once, usually isn't a cleaning problem — it's a sign of a partial blockage, a bellied (sagging) section of pipe, or root intrusion further down the line, and we say so rather than re-selling the same snake visit on a repeat call.
Signs you have a drain cleaning problem
- A sink, tub or shower draining slowly or not at all
- Gurgling sounds from a drain when another fixture is used
- A recurring clog in the same drain despite recent cleaning
- Multiple fixtures backing up around the same time — a main-line signal, not a single-fixture one
- A basement floor drain backing up or smelling of sewage
Why Manhattan sees this
A large share of New York City's older buildings still run on original cast-iron drain and waste stacks, which corrode and roughen internally over decades in a way that gives grease and debris more to catch on than a newer PVC line — this is a routine, not exceptional, reason for recurring clogs in pre-war buildings.
Blocks with restaurants or food-service tenants put more fat, oil and grease into shared drain lines than a purely residential block, which is a common contributor to main-line clogs in buildings near commercial corridors.
In co-op and condo buildings, a backed-up main line can affect every unit on the stack, not just the apartment where the symptom first showed up — we flag when a clog looks building-wide so building management can be looped in rather than treating it as a single unit's problem.